Group Title: Bulletin - University of Florida. Agricultural Experiment Station ; 115
Title: Sugar and acid in oranges and grapefruit
CITATION THUMBNAILS PAGE IMAGE ZOOMABLE
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00026397/00001
 Material Information
Title: Sugar and acid in oranges and grapefruit
Series Title: Bulletin University of Florida. Agricultural Experiment Station
Physical Description: 23 p. : ; 23 cm.
Language: English
Creator: Collison, S. E ( Stanley E )
Publisher: University of Florida Agricultural Experiment Station
Place of Publication: Gainesville Fla
Publication Date: 1913
 Subjects
Subject: Oranges -- Composition   ( lcsh )
Grapefruit -- Composition   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: by S.E. Collison.
General Note: Cover title.
General Note: Chiefly tables.
 Record Information
Bibliographic ID: UF00026397
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: aleph - 000921869
oclc - 18161042
notis - AEN2337
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HISTORIC NOTE


The publications in this collection do
not reflect current scientific knowledge
or recommendations. These texts
represent the historic publishing
record of the Institute for Food and
Agricultural Sciences and should be
used only to trace the historic work of
the Institute and its staff. Current IFAS
research may be found on the
Electronic Data Information Source
(EDIS)

site maintained by the Florida
Cooperative Extension Service.






Copyright 2005, Board of Trustees, University
of Florida





BULLETIN 115


UNIVERSITY OF FLORIDA

Agricultural Experiment Station









SUGAR AND ACID IN ORANGES AND

GRAPEFRUIT


BY
S. E. COLLISION


The Station Bulletins will be sent free upon application to the Experiment
Station, Gainesville, Fla,


Pepper Pub. & Ftg. Co., Gainevville, Fla.


JULY1 1913













CONTENTS
Page
Introduction ........... .... ............................ .......... 3
ORANGES
N a v el ................. .... ... .... ..... ............ ........ ... .. 6
Parson Brown .................... .......... .................... 6
P in eap ple ................... ......... ..... .. .................... 8
V alencia ........................................................ 9
Miscellaneous named oranges ................................... 9
Seedlings ..................................................... 11
Tangerine and Satsuma .......................................... 18
GRAPEFRUIT
Silver Cluster ....................................... ........... 18
M arsh ............................................ ........... 20
Triumph ............. ..... ................ ................. 21
Miscellaneous named grapefruit ................................ 21
Budded ........................................ ... ............ 21
C om m on ........................................ ............. 22




SUMMARY
Analyses of over 500 lots of oranges and grapefruit, extending from
October 1, 1912, to May 2, 1913, are reported in this bulletin.
These results show:
1. That there is a gradual increase of total sugar as the oranges
mature.
2. That there is a gradual decrease of acidity as the oranges mature.
Apparently all the acid of the fruit is formed early in the season, while sugar
continues to be formed until maturity.
3. That in oranges both sucrose and reducing sugars increase at about
the same rate, with the former averaging a little higher than the latter.
4. For grapefruit the increase of sugar and decrease of acid is ap-
parent, but not nearly in so marked a degree as in the orange.
5. After grapefruit reach maturity there is a noticeable increase in
reducing sugar, with a corresponding decrease in sucrose, pointing to a
breaking down of sucrose into dextrose and fructose.
6. Consideration of all the data presented establishes the fact that
the demarkation between fruit classified as sour and that classified as
sweet lies near the ratio of one of acid (anhydrous) to seven of sugar, in
the grade here called tart.
7. In a similar way the demarkation between fruit classified as very
sour and that classified as sour lies near the ratio of one of acid (anhydrous)
to four of sugar.
8. The two different methods of sampling employed (twelve fruits
from one tree, and one fruit from each of twelve trees) showed no essen-
tial difference in the results.










SUGAR AND ACID IN ORANGES

AND GRAPEFRUIT

BY S. E. COLLISION


There are few data on the chemical changes which take place
in the ripening of citrus fruits, excepting the tables published by
the State Chemist and noted in a following paragraph. With this
exception, most of the analyses hitherto published have been
made on ripe oranges. In order to gain definite knowledge of
the changes in acids and sugars occurring in oranges and grape-
fruit as they mature, the work reported in the present bulletin
was undertaken.
The samples of fruit analyzed were obtained from over
twenty different localities representing regions as far north as
Baker County, and as far south as Lee County on the west coast
and Dade County on the east coast. Fruits grown on a great
variety of soils and with various kinds of fertilizers are like-
wise represented.
CO-OPERATION WITH FLORIDA CITRUS EXCHANGE
The work was carried on with the co-operation and assist-
ance of the Florida Citrus Exchange. This organization paid
the salary of an assistant chemist who did most of the analytical
work. They also paid a large proportion of the transportation
charges on fruit sent to the chemical laboratory, and were in-
strumental in inducing representative growers in various sec-
tions of the State to send in samples of fruit. For this gener-
ous assistance and support, we wish to express our sincere
thanks. Without such assistance, the chemical department
would have been financially unable to take up the work at this
time. Several growers sent in fruit at the request of this de-
partment, and to these we wish also to acknowledge our in-
debtedress. The source of the fruit is stated at the head of
each table. Every effort was made, by means of circulars,
newspapers, and private correspondence, to make the work as
complete as possible. We realize that it was no small task for
the growers to send regularly for so long a time. A number of
samples were sent without sufficient data to be of value in this
bulletin. These were analyzed but showed no variation from
samples with data, and so are not included here.

PLAN
Growers who sent samples were requested to set aside a
representative tree in the grove, and to send twelve average






Florida Agricultural Experiment Station


fruits from this tree in every sample. Several other growers at
the instance of this department selected one fruit from each of
twelve average trees each time. (These latter are noted in the
headings of the tables of analyses.) The samples were sent at
intervals of a week or so, fruit being selected as appearing of
average maturity at the date of sending. The period extended
from October 1, 1912, to May 2, 1913. Twelve representative
oranges or grapefruit were thus received in each sample.
The following varieties of oranges were received throughout
the season: Parson Brown, Pineapple, Navel, Valencia, and many
seedlings. The following kinds of grapefruit were received
throughout the season: Marsh Seedless, Silver Cluster, Triumph,
budded, and common Florida seedlings. In addition, miscel-
laneous samples of a number of other varieties were analyzed as
they were sent in by other growers.
The Citrus Exchange was interested mainly in securing ad-
ditional data bearing on the proposed chemical standard for judg-
ing the maturity of oranges. Knowledge of the composition of
normal fruits from representative localities over the State is of
value to the chemical department as a basis with which to com-
pare results obtained in the current citrus fertilizer experiments.
Reliable information was obtained concerning the soils of
the various groves, and their cultural and fertilizer treatment.
A sample from each lot of fruit received has been preserved, to
determine the amounts of fertilizer constituents.

CONSTITUENTS OF CITRUS FRUITS
Of the various compounds present in the fruit, the sugars,
acids, and certain essential oils exert most influence on the flavor,
and to a great extent determine the quality.
SUGARS.-There are three different sugars found in the
fruits: Sucrose or cane sugar, dextrose or grape sugar, and
fructose or fruit sugar. Sucrose usually makes up a little
over one-half of the total sugar. After the fruit is removed
from the tree there is a gradual decrease in the amount of
sucrose, with a corresponding increase of the other two sugars,
indicating that sucrose is changed into the other two. This
change, which is brought about by the enzymes or ferments
present in all fruits, is also noticed when fruit is allowed to re-
main on the tree after it is thoroughly mature. Sucrose is
sweeter than dextrose, in about the proportion of 3 to 2.
ACID is present almost entirely as citric. Citric acid pre-
dominates in all citrus fruits, and is present in large amounts
in the lime and lemon. The sugars, the acid, and the mineral
constituents give the orange its value as a food.
METHODS
Each lot of fruits was weighed on being received at the labo-
ratory, and the percentage of juice determined. This was






Bulletin 115


done by removing the skins, running the pulp through a food
chopper, and then pressing out the juice through a muslin bag
by means of a porcelain fruit press. Care was exercised to use
the same amount of pressure each time. One analyst, J. H.
Carpenter, did most of this work. The resulting percentages of
juice appear quite consistent. The juice thus obtained was classi-
fied according to taste as very sour, sour, tart, sweet, or very
sweet.
Percentages of sucrose, reducing sugars (dextrose and fruc-
tose), and acidity, were calculated on the juice thus obtained.
Sucrose was determined by the polariscope, with the usual
weight, 26 grams, of juice. Reducing sugars were determ-
ined by Fehling's solution, the cuprous oxide being weighed,
and the percentage calculated by Munson and Walker's tables.
Acidity was determined as follows: ten grams of juice were
weighed into a beaker, 100 cc. of recently boiled distilled water
and a few drops of phenolphthalein solution added, and the liquid
titrated with tenth-normal sodium hydroxide. The results were
calculated as anhydrous citric acid.
COMPARISON WITH STATE CHEMIST'S REPORT
The data here presented correspond quite accurately with
those published by the State Chemist, R. E. Rose, in Florida
Quarterly Bulletin, Volume 23, No. 2, Part II, April 1, 1913. The
acid, however, is here calculated as anhydrous, whereas in the
bulletin of the State Chemist it was calculated to crystallized
citric.
To make the figures given here for acid comparable with
those in the State Chemist's Bulletin, they must be multiplied
by 1.0937, the factor for reducing anhydrous to crystallized citric
acid. Thus 1.19 here, corresponds to 1.30 of crystallized acid, the
legal standard for oranges; and 1.60 in the present bulletin cor-
responds to 1.75 of crystallized acid, the legal standard for grape-
fruit.
J. H. Carpenter, assistant chemist, had charge of the work
of making the extraction of the juice, and made most of the
determinations of acid and reducing sugars.
The heavy figures in these tables represent amounts of acid
that are illegal between October 1 and November 5.





Florida Agricultural Experiment Station


ORANGES
NAVEL-Florence Villa-Florence Villa Fruit Co.
Date Per- Taste Acid- Su- Red- Total IRatio
cent. ity I crose ucing Sugar 1 acid
Juice Sugar to
_I I I sugar
1912.
Sep. 20.... 44.7 tart 0.79 .... .... 6.14 7.7
Sep. 27.... 49.4 tart 0.65 3.28 2.63 6.08 9.3
Oct. 4..... 56.2 tart 0.59 3.49 2.72 6.39 10.8
Oct. 11.... 55.1 sweet 0.41 3.92 2.05 6.18 15.1
Oct. 16.... 56.8 sweet 0.44 4.25 1.86 6.33 14.4
Oct. 24.... 52.3 sweet 0.46 3.85 1.64 5.69 12.4
Nov. 1.... 53.0 sweet 0.43 4.04 1.82 6.07 14.1
Nov. 7.... 57.6 sweet 0.51 4.38 2.09 6.70 13.1
Nov. 15... 51.1 sweet 0.43 4.35 2.02 6.60 15.3
Nov. 20... 56.0 sweet 0.48 4.32 2.13 6.67 13.9
Dec. 4..... 42.6 sweet 0.44 4.43 2.25 6.92 15.7
Dec. 11.... 53.6 v.sweet 0.38 4.49 2.23 6.95 18.1

PARSON BROWN-Summerfield-Carney Investment Co.
Sep. 28.... 50.5 tart 0.86 3.05 2.42 5.63 6.5
Oct. 8..... 54.5 tart 0.78 3.34 2.31 5.82 7.6
Oct. 15.... 53.0 tart 0.69 3.77 2.55 6.52 9.4
Oct. 23.... 53.6 tart 0.63 3.91 2.68 6.79 10.8
Oct. 30.... 52.1 sweet 0.63 4.35 3.06 7.64 12.1
Nov. 6.... 52.5 tart 0.62 4.46 2.96 7.65 12.3
Nov. 13... 55.8 sweet 0.66 4.76 3.16 8.17 12.4
Nov. 20.. 51.9 sweet 0.66 4.69 3.22 8.15 12.3
Nov. 29... 51.2 sweet 0.60 4.77 3.17 8.19 13.6
Dec. 5.... 55.3 sweet 0.68 4.33 3.42 7.98 11.7
Dec. 11. ... 50.3 sweet 0.66 5.34 3.66 9.29 14.1
Dec. 18... 52.7 sweet 0.59 5.27 3.53 9.08 15.5
Dec. 27... 54.0 sweet 0.62 5.41 3.76 9.45 15.2
Dec. 31... 56.5 sweet 0.53 4.98 3.48 8.72 16.4
1913.
Feb. 6.... 48.7 v.sweet 0.57 5.96 4.25 10.53 18.3

PARSON BROWN-East Lake-Geo. E. Snow.
(Fruit taken from 12 trees.)
1912.
Sep. 24... 43.4 sour 1.32 2.90 2.30 5.35 4.1
Oct. 4.... 51.9 tart 0.95 3.04 2.08 5.28 5.5
Oct. 12... 52.0 tart 0.86 3.49 2.58 6.25 7.3
Oct. 18... 54.7 tart 0.73 3.83 2.58 6.61 9.1
Oct. 29... 52.1 tart 0.76 3.90 2.38 6.48 8.5





Bulletin 115


PARSON BROWN-East Lake-Geo. E. Snow (continued)
Date Per- Taste IAcid- Su- Red- Total Ratio
cent. ity I crose ucing Sugar I acid
I Juice Sugar to
| I I I sugar
Nov. 19... 53.8 sweet 0.60 4.78 2.70 7.73 12.9
Dec. 2.... 57.0 sweet 0.65 4.60 2.96 7.80 11.9
Dec. 16... 54.8 sweet 0.54 4.24 2.68 7.15 13.1
1913
Jan. 2..... 55.7 sweet 0.54 3.42 3.00 6.60 12.2

PARSON BROWN-Florence Villa-Florence Villa Fruit Co.

1912.
Sep. 23.... 41.2 tart 0.54 ... .... 6.23 11.5
Sep. 27 ... 47.4 tart 0.61 ....... 6.02 9.9
Oct. 11 ... 55.1 sweet 0.46 3.62 2.33 6.14 13.3
Oct. 16.... 52.3 tart 0.48 3.49 2.05 5.72 11.9
Oct. 24.... .... tart 0.64 3.58 2.58 6.35 9.9
Nov. 1.... 53.7 sweet 0.45 3.63 2.43 6.25 13.9
Nov. 7 .... 52.2 sweet 0.44 4.32 2.53 7.08 16.1
Nov. 15... 54.8 sweet 0.49 4.30 2.77 7.30 14.9
Dec. 4 .... 52.0 sweet 0.45 4.60 3.02 7.86 17.4
Dec. 23... 50.2 sweet 0.59 4.57 3.33 8.13 13.8
1913
Jan. 6..... 52.0 v.sweet 0.26 4.20 3.10 7.52 28.9

PARSON BROWN-Glen St. Mary-Glen St. Mary Nursery Co.

1912.
Oct. 25.... 48.2 sour 1.47 3.07 3.42 6.65 4.5
Nov. 26.... 52.2 sour 1.51 3.39 3.88 7.44 4.9

PARSON BROWN-Arcadia.

Sep. 24... 45.2 sour 1.65 ....... 4.61 2.8
Oct. 3..... 59.8 sour 1.24 2.30 2.21 4.63 3.7

PARSON BROWN-Palatka-S. C. Warner.

Sep. 23... .... tart 1.16 ... .... 6.10 5.2
Sep. 27... 45.8 tart 1.06 ....... 6.37 6.0
Oct. 7.... 46.7 tart 0.82 3.28 2.80 6.25 7.6

PARSON BROWN-Lowell-Wetumpka Fruit Co.

Oct. 11... 54.4 tart 0.71 2.97 2.60 5.73 8.1
Oct. 23... 54.9 sweet 0.63 3.89 2.62 6.72 10.6






Florida Agricultural Experiment Station


PINEAPPLE--Florence Villa -Florence Villa Fruit Co.
Date Per- Taste Aciu- Su- Red- | Total Ratio
cent. ity crose ucing Sugar lacid
Juice Sugar to
I sugar
Sep. 20.... 40.6 sour 1.19 2.78 2.39 5.32 4.5
Sep. 27.... 48.6 sour 1.05 2.64 2.47 5.25 5.0
Oct. 4.... 54.2 tart 0.87 2.78 2.41 5.34 6.1
Oct. 11... 51.7 tart 0.78 2.74 2.75 5.63 7.2
Oct. 16... 53.8 sour 0.98 2.89 2.68 5.72 5.9
Oct. 24... 53.9 sour 0.87 2.89 2.41 5.45 6.3
Nov. 1.... 58.8 sour 0.91 2.51 2.41 5.05 5.5
Nov. 7.... 55.0 tart 0.88 3.68 3.19 7.06 8.0
Nov. 15... 52.3 tart 0.83 3.87 3.17 7.24 8.7
Dec. 5.... 51.6 sweet 0.82 4.14 3.46 8.82 10.7
Dec. 23... 51.4 sweet 0.69 4.51 3.51 8.26 11.9
1913
Jan. 6.... 54.5 sweet 0.70 4.38 3.76 8.37 11.8

PINEAPPLE-DeLand-H. B. Stevens.
(Fruit taken from 12 trees.)
1912.
Nov. 13... 51.9 tart 1.02 3.86 3.24 7.31 7.1
Nov. 22... 50.8 tart 0.92 3.70 3.34 7.23 7.8
Dec. 3.... 47.8 tart 0.94 4.15 3.65 8.02 8.5
Dec. 11... 49.4 sweet 0.83 4.24 3.38 7.84 9.4
Dec. 17... 47.9 sweet 0.82 4.56 3.47 8.27 10.1
Dec. 27... 45.3 sweet 0.79 4.58 3.94 8.76 11.1
Dec. 31... 49.8 sweet 0.77 4.57 3.65 8.46 10.9
1913
Jan. 7.... 45.3 sweet 0.64 4.64 2.82 7.71 11.9
Jan. 14... 48.2 sweet 0.67 5.03 3.94 9.23 13.7
Jan. 21... 43.7 sweet 0.73 5.01 3.98 9.26 12.7
Jan. 28... 47.2 sweet 0.63 5.15 4.13 9.56 15.1

PINEAPPLE-Arcadia-C. S. Bushnell.
1912
Oct. 7..... 48.0 tart 0.91 2.77 3.06 5.98 6.6
Oct. 9..... 49.8 tart 0.91 3.29 3.24 6.70 7.3

PINEAPPLE-Glen St. Mary-Glen St. Mary Nursery Co.
Oct. 25.... 50.1 sour 1.17 3.00 2.85 6.01 5.1

PINEAPPLE- trifoliataa stock)--Glen St. Mary-Glen St. Mary
Nursery Co.


tart 1.07 4.45 3.56 8.24


Nov. 27... 46.6






Bulletin 115


PINEAPPLE (sour stock)-Glen St. Mary-Glen St. Mary Nursery
Company.
Date Per- Taste Acid- Su- Red- Total Ratio
cent. ity | crose ucing Sugar I acid
SJuice Sugar to
___| ___ sugar
Nov. 27... 46.8 sour 1.13 3.56 3.19 7.04 6.2

VALENCIA-Winter Garden-L. W. Tilden.
Oct. 16.... 52.6 v. sour 2.13 1.45 2.62 4.14 1.9
Oct. 23.... 51.1 v. sour 2.03 2.06 2.63 4.80 2.3
Oct. 30.... 55.5 v. sour 1.91 2.24 2.73 5.08 2.6
Nov. 6.... 48.8 v. sour 1.71 2.87 3.11 6.13 3.6
Nov. 13 ... 56.4 v. sour 1.95 2.56 2.93 5.62 2.9
Nov. 20... 57.4 v. sour 1.71 3.54 3.00 6.73 3.9
Nov. 29... 59.1 v. sour 1.70 3.31 3.11 6.59 3.9
Dec. 4..... 58.0 v. sour 1.59 3.70 3.39 7.29 4.6
Dec. 11 ... 54.2 sour 1.42 3.99 3.73 7.92 5.5
Dec. 19.... 59.8 sour 1.46 4.07 3.77 8.05 5.5
Dec. 27.... 61.0 tart 1.27 4.39 3.76 8.38 6.6
1913
Jan. 2.... 68.9 tart 1.23 4.32 3.86 8.40 6.8
Jan. 9.. 60.9 tart 1.24 4.81 4.18 9.25 7.4
Jan. 15... 60.4 tart 1.18 4.70 3.92 8.88 7.5
Jan. 23... 60.2 sweet 1.18 4.75 4.21 9.21 7.8
Jan. 30.. 59.3 sweet 1.15 5.29 3.91 9.49 8.2
Feb. 5.... 60.4 sweet 1.23 5.41 4.55 10.24 8.3
Feb. 12... 58.3 sweet 1.11 5.53 4.25 10.07 9.1
Feb. 19... 58.5 sweet 1.08 5.39 4.53 10.21 9.4
Feb. 27... 57.9 sweet 1.17 4.96 4.21 9.44 8.1
Mar. 7.... 56.8 sweet 1.08 5.44 4.49 10.22 9.5
Mar. 14... 60.8 sweet 0.98 5.40 4.66 10.35 10.5
Mar. 27... 58.2 sweet 0.95 5.87 4.78 10.96 11.5
Apr. 3.... 57.4 sweet 0.90 6.32 4.93 11.58 12.8
Apr. 9.... 57.7 sweet 0.77 6.24 4.69 11.24 14.6
Apr. 24.. 59.6 sweet 0.84 5.75 5.13 11.18 13.3
May 1..... 60.1 sweet 0.77 6.02 5.19 11.53 15.0

BOONE'S EARLY-Arcadia-C. S. Bushnell.

1912
Sep. 26. ... 44.3 tart 1.03 .... .... 4.78 4.6

BOONE'S EARLY-Glen St. Mary-Glen St. Mary Nursery Co.
Oct. 25. ... 47.7 sour 1.01 3.34 2.75 6.27 6.2
Nov. 27... 47.1 tart 0.96 4.03 3.37 7.61 7.9






Florida Agricultural Experiment Station


SWEET SEVILLE-Glen St. Mary-Glen St. Mary Nursery Co.


Date Per- Taste
cent.
SJuice

Oct. 25.... 50.9 sour
Nov. 26... .... tart


SAcid- Su- Red-
ity crose ucing
I ISugar
S| I


Total Ratio
Sugar 1 acid
to
sugar


1.02 3.16 2.63 5.95 5.8
0.89 3.62 3.16 6.97 7.8


ENTERPRISE


Oct. 25....
Nov. 27...


SEEDLESS-Glen St. Mary-Glen St.
Company.


53.8
51.8


Mary Nursery


sour 0.92 3.05 2.77 5.98 6.5
sweet 0.73 3.93 3.25 7.38 10.1


RUBY-Glen St. Mary-Glen St. Mary Nursery Co.


57.6
55.0


tart 0.95 3.00 2.93 6,09 6.4
tart 0.99 3.93 3.56 7.70 7.8


HOMOSAsSA-Palatka-S. C. Warner.
(Fruit taken from 12 trees.)


Oct. 18...
Oct. 29 ...
Nov. 28...

HOMOSASSA

Oct. 25 ...
Nov. 27 ...

HOMOSASSA

Oct. 25...
Nov.27 ....


57.7
51.8
51.2


sweet
tart
v. sweet


0.41 4.13
0.82 3.74
0.37 4.13


2.60 6.95
3.15 7.09
3.84 8.19


trifoliataa stock)-Glen St. Mary-Glen St. Mary
Nursery Co.


50.0
48.2


sour 1.40 3.46 3.66 7.30 5.2
sour 1.56 4.08 4.27 8.57 5.5


(sour stock)-Glen St. Mary-Glen St. Mary Nurs-
ery Co.


51.6
49.7


sour 1.32 2.93 3.07 6.15 4 6
sour 1.24 3.91 458 8.70 7.1


HOMOSASSA-Oneco-Reasoner Brothers.


Nov. 18....
Dec. 3. .. .


53.2
56.0


tart 1.10 4.32 3.90 8.45 7.7
tart 1.18 4.06 4.21 8.48 7 2


JAFFA-Palatka-S. C. Warner.
(Fruit taken from 12 trees.)


Oct. 18.... 55.3
Oct. 29.... 56.5
Nov. 28... 59.5
Dec. 20. ... 54.0


tart
sweet
v. sweet
v. sweet


0.61
0.63
0.42
0.34


3.73
3.89
4.70
3.93


2.83
2.82
3.38
3.79


6.76
6.91
8.33
7.92


Oct. 25...
Nov. 26. ...


16.9
8.6
22.4


11.1
10.9
19.8
23.3






Bulletin 115


PARKER'S SWEET-Arcadia-C. S. Bushnell.
Date I Per- Taste IAcid- Su- Red- Total [Ratio
cent. ity | crose ucing I Sugar I lacid
Juice Sugar to
S I sugar
Sep. 26... 49.5 v. sour 1.36 ... .... 4.73 3.5
Oct. 7..... 55.5 sour 1.00 2.35 2.54 5.04 5.0


SEEDLING--Tavares-G. M. Wakelin.


Oct. 8 .... 50.8
Oct. 15.. 55.3
Oct. 21... 54.1
Oct. 29... 54.5
Nov. 5..... 53.6
Nov. 12.... 55.8
Nov. 19.... 54.9
Nov. 26 .... 55.3
Dec. 3..... 53.5
Dec. 9. .... 50.0
Dec. 16.... 52.7
Dec. 26.... 54.0
Dec. 31.... 57.3
1913
Jan. 7..... 53.1
Jan. 14.... 54.0
Jan. 21.... 54.8
Jan. 28.... 54.5
Feb. 4 .... 53.5
Feb. 12... 55.8


sour
sour
sour
sour
sour
sour
sour
sour
sour
tart
tart
tart
tart

tart
sweet
sweet
sweet
sweet
sweet


1.57 2.53 3.11 5.77
1.44 2.48 3.58 6.19
1.50 2.77 3.38 6.29
1.37 3.20 3.52 6.89
1.38 3.47 3.56 7.21
1.34 3.78 3.71 7.69
1.39 3.99 3.82 8.02
1.25 3.62 3.67 7.48
1.25 3.73 4.18 8.11
1.20 4.05 4.17 8.45
1.35 4.01 3.98 8.20
1.18 4.36 4.03 8.62
1.06 4.10 4.24 8.54

1.22 4.08 4.30 8.60
1.11 4.14 4.18 8.54
1.01 4.12 4.51 8.85
1.12 4.53 4.41 9.18
1.00 4.86 4.33 9.45
0.91 4.69 4.20 9.13


SEEDLING-Clearwater-E. L. Pearce.


1912
Oct. 2. .... 52.9
Oct. 9. .... 53.4
Oct. 17.... 52.1
Oct. 23 ... 53.9
Oct. 30... 57.3
Nov. 7. .... 54.8
Nov. 14.... 53.2
Nov. 20.... 54.5
Nov. 29... 51.8
Dec. 5.... 49.2
Dec. 11.... 52.0
Dec. 19.... 53.6
Dec. 27.... 51.9
1913
Jan. 2. .... 52.5


sour
sour
sour
sour
sour
sour
sour
tart
tart
tart
sweet
sweet
sweet


1.37 2.22 2.05 4.39
1.30 2.27 2.22 4.61
1.31 2.92 2.63 5.70
1.14 3.05 2.68 5.89
1.27 2.93 2.43 5.52
1.06 3.48 2.82 6.48
1.03 3.76 3.12 7.07
0.96 4.01 3.23 7.45
0.93 4.06 3.27 7.54
0.90 4.14 3.35 7.72
0.74 4.48 2.95 7.66
0.65 4.80 3.19 8.24
0.77 4.80 3.62 8.67


sweet 0.82 4.57 3.99 8.80


3.7
4.3
4.2
5.0
5.2
5.7
5.8
5.9
6.5
7.0
6.1
7.3
8.1

7.0
7.7
8.7
8.2
9.4
10.0


3.2
3.5
4.3
5.2
4.3
6.1
6.9
7.7
8.1
8.6
10.3
12.7
11.2

10.7






Florida Agricultural Experiment Station


SEEDLING-Clearwater-E. L. Pearce (continued)
Date Per- I Taste IAcid- Su- Red- I Total Ratio
cent. ity | crose I ucing Sugar I lacid
I Juice I Sugar I to
I [ I sugar
Jan. 9..... 54.3 sweet 0.78 4.47 3.66 8.37 10.7
Jan. 17. ... 50.5 sweet 0.69 4.39 3.92 8.54 12.4
Jan. 23. ... 52.7 sweet 0.66 4.48 3.62 8.33 12.6
Jan. 31.... 50.9 sweet 0.62 5.11 3.71 9.09 14.6

SEEDLING-Lakeland-G. P. Quaintance.


1912
Oct. 3..... 53.6 v. sour
Oct. 12 ... 52.8 v. sour
Oct. 19.... 52.0 v. sour
Oct. 28... 55.5 v. sour
Nov. 2..... 55.0 v. sour
Nov. 9..... 54.1 v. sour
Nov. 16.... 52.9 sour
Nov. 23.... 55.3 sour
Nov. 30.... 51.6 sour
Dec. 7..... 50.0 sour
Dec. 26... 51.3 tart
Dec. 30.... 59.8 tart
1913
Jan. 6..... 49.3 tart
Jan 20..... 51.7 tart
Jan. 27..... 51.2 sweet


1.69 2.27 2.16 4.54
1.59 1.97 2.31 4.38
1.26 2.53 2.30 4.97
1.58 2.28 2.59 4.98
1.53 2.25 2.54 4.91
1.55 3.00 2.41 5.57
1.27 3.78 3.03 7.01
1.42 3.76 3.22 7.18
1.19 3.94 3.64 7.79
1.41 3.71 3.19 7.09
0.98 4.65 3.41 8.30
1.24 4.61 3.80 8.65

1.14 4.71 4.23 9.19
1.25 4.78 3.89 8.93
1.16 5.18 4.53 9.98


SEEDLING-Wauchula-S. B. Hogan.


1912
Oct. 3..... 52.6
Oct. 12.... 50.6
Oct. 18.... 54.4
Oct. 26.... 52.8
Nov. 1..... 53.5
Nov. 8...... 51.8
Nov. 15.... 56.8
Nov. 22... 56.3
Nov. 30... 55.2
Dec. 6..... 62.0
Dec. 13 ... 54.9
Dec. 21.... 52.9
Dec. 27.... 55.3


sour
sour
sour
sour
tart
sour
tart
tart
tart
tart
tart
sweet
sweet


1.50 2.42 2.61 5.16
1.27 2.42 2.64 5.19
1.33 3.32 2.94 6.43
1.18 3.06 2,95 6.17
1.07 3.60 2.85 6.64
1.00 3.71 3.11 7.02
1.04 3.92 3.08 7.20
0.99 4.12 3.05 7.39
0.96 4.16 3.32 7.70
0.95 4.40 3.23 7.86
1.01 3.95 3.76 7.92
0.97 4.98 3.97 9.21
0.91 4.76 3.84 8.85






Bulletin 115


SEEDLING-Wauchula-S. B. Hogan (continued)
Date Per- Taste Acid- Su- Red- Total Ratio
cent. ity crose ucing Sugar lacid
Juice Sugar to
____sugar


1913
Jan. 4..... 54.0 sweet 0.88 4.70 3.81 8.75
Jan. 10.... 51.4 sweet 0.79 5.16 4.09 9.53
Jan. 17.... 48.4 sweet 0.89 5.31 4.33 9.92
Jan. 24.... 48.9 sweet 0.90 5.23 4.66 10.17
Jan. 30.... 53.4 sweet 0.89 5.55 4.60 10.44
Feb. 7..... 53.6 sweet 0.78 5.67 4.58 10.55


9.9
12.1
11.5
11.3
11.6
13.4


SEEDLING-Lake SHelen-Mace & Son.


1912
Oct. 4..... 56.2 v. sour
Oct. 12.... 52.4 sour
Oct. 18.... 53.0 sour
Oct. 28.... 54.6 tart
Nov. 1. .... 56.3 tart
Nov. 11.... 56.7 sour
Nov. 16.... 52.6 tart
Nov. 23.... 55.8 tart
Nov. 30.... 52.4 sour
Dec. 6..... 51.3 tart
Dec. 17.... 54.4 sweet
Dec. 21.... 54.0 sweet
Dec. 28.... 53.2 sweet


1913
Jan. 6...... 52.4
Jan. 11..... 54.3
Jan. 17..... 54.4
Jan. 24..... 52.7
Jan. 31..... 54.6


sweet
sweet
sweet
sweet
sweet


1.57 2.44
1.11 2.79
1.15 3.25
1.00 3.13
1.05 3.40
1.13 3.49
1.18 3.70
1.00 4.01
1.18 3.65
1.09 3.90
0.92 4.25
1.05 4.44
0.93 4.28

1.01 4.47
0.98 4.62
0.92 4.48
0.90 5.18
0.99 4.88


2.87 5.43
3.05 5.98
3.09 6.51
3.07 6.36
3.47 7.05
3.72 7.49
3.80 7.69
3.95 8.17
4.38 8.23
4.05 8.16
4.04 8.51
4.34 9.00
4.21 8.72

4.52 9.23
4.58 9.45
4.53 9.25
4.53 9.98
5.23 10.37


SEEDLING--Mt. Dora-James Simpson.


1912
Oct. 8..... 56.0
Oct. 15.... 59.2
Oct. 22.... 59.6
Oct. 29 ... 56.7
Nov. 5. .... 59.0
Nov. 12... 49.8
Nov. 19... 57.5
Nov. 26.... 57.8
Dec. 3. ..... 56.5


sour
sour
sour
sour
sour
sour
sour
sour
tart


1.40 2.34 2.60 5.06
1.41 2.30 2.82 5.24
1.21 2.77 2.71 5.63
1.15 2.65 2.78 5.57
1.44 2.97 2.97 6.20
1.18 3.52 3.13 6.84
1.13 3.83 3.07 7.10
1.25 3.56 3.42 7.17
1.18 3.78 3.40 7.38


3.4
5.3
5.6
6.4
6.7
6.6
6.5
8.2
6.9
7.5
9.2
8.6
9.4

9.1
9.6
10.0
11.1
10.4






Florida Agricultural Experiment Station


SEEDLING-Buckingham-D. S. Borland.
Date Per- Taste IAcid- Su- Red- Total Ratio
cent. ity I crose ucing Sugar lacid
SJuice | Sugar | to
I I | [| I sugar
ct. 9..... 56.4 sour 1.45 2.55 3.13 5.81 4.0
ct. 15.... 53.8 sour 1.34 3.36 3.42 6.96 5.2
ct. 28.... 52.7 sour 1.22 3.25 3.58 7.00 5.7
ov. 2..... 54.3 sour 1.08- 3.01 3.95 7.11 6.6
ov. 5...... 54.8 sour 1.21 3.54 3.63 7.36 6.1
ov. 13 ... 56.5 tart 0.99 3.83 4.08 8.12 8.2
ov. 21. ... 56.0 sour 1.02 3.91 4.07 8.19 8.0
ov. 29.... 52.3 tart 1.11 4.21 3.90 8.33 7.5


1913
Jan. 14.... 58.1 sweet 0.67 4.87 4.36 9.49
Jan. 24. ... 56.1 sweet 0.80 5.40 5.21 10.90


14.1
13.6


SEEDLING-Manatee-H. T. Bennett.


1912
Oct. 7..... 50.0
Oct. 14.... 54.9
Oct. 21.... 55.9
Oct. 28.... 54.7
Nov. 4..... 56.8
Nov. 11.... 56.3
Nov. 18... 56.0
Nov. 25... 55.3
Dec. 3. ...... 56.3
Dec. 16.... 56.7
Dec. 24. ... 54.1
Dec. 31. ... 56.1


tart
tart
sour
tart
tart
tart
sweet
tart
sweet
sweet
sweet
sweet


1.19 2.97 3.03 6.15
1.08 2.37 3.25 5.75
0.96 3.40 3.24 6.82
0.85 3.84 3.28 7.32
0.91 3.28 3.52 6.98
0.77 4.32 3.89 8.44
0.74 4.47 3.75 8.46
0.70 4.42 3.92 8.57
0.73 4.79 3.85 8.90
0.73 4.68 4.09 9.01
0.66 5.06 4.21 9.54
0.66 4.99 4.62 9.88


SEEDLING-Winter Haven-C. W. Barnes.


Oct. 4. .... 53.7 sour
Oct. 12... 57.5 v. sour
Oct. 18.... 55.1 sour
Oct. 26 ... 56.7 sour
Nov. 1. .... 57.1 sour
Nov. 8..... 56.7 sour
Nov. 15.... 55.6 sour
Nov. 22.... 540 sour
Nov. 30 .. 51.2 tart
Dec. 7..... 54.0 tart
Dec. 14.... 52.3 tart
Dec. 21.... 54.2 tart
Dec. 30.... 54.8 tart


1.27 2.21 3.00 5.32
1.35 2.10 2.77 4.98
1.27 267 2.97 5.78
1.19 2.89 3.01 6.05
1.21 3.11 3.00 6.26
1.13 2.95 2.87 5.98
1.06 3.37 3.28 6.83
1.15 3.95 3.46 7.62
1.07 3.52 3.64 7.34
1.04 4.13 3.84 8.19
1.07 3 88 388 7.96
1.00 3.66 3.42 7.27
1.04 3.75 3.67 7.61


0
0<
0<
N
N
N
Nc
Nc
Nc


5.2
5.3
7.1
8.6
7.7
10.9
11.4
12.2
12.2
12.3
14.4
14.9






Bulletin 115


SEEDLING-Winter Haven-C. W. Barnes (continued)
Date Per- Taste Acid- Su- | Red-I Total Ratio
cent. | ity crose ucingI Sugar | lacid
Juice Sugar | to
sugar


1913
Jan. 4..... 48.8 sweet 0.95 4.47 3.98 8.68
Jan. 10.... 51.4 sweet 0.95 4.67 3.70 8.61
Jan. 17.... 51.8 sweet 1.01 4.68 4.54 9.47
Jan. 24.... 52.4 sweet 0.94 4.50 3.95 8.68
Feb. 3..... 54.0 sweet 0.85 4.55 4.08 8.87
Feb. 7..... 50.0 sweet 0.97 5.45 4.68 10.42

SEEDLING-St. Petersburg-W. W. Birchfield.


9.1
9.1
9.3
9.2
10.4
10.7


1912
Oct. 12.... 59.7 v. sour
Oct. 17... 52.2 v. sour
Oct. 26.... 57.4 v. sour
Nov. 1..... 54.2 sour
Nov. 8... 56.0 v. sour
Nov. 14.... 56.2 sour
Nov. 21.... 54.1 sour
Nov. 29 ... 53.7 sour
Dec. 6. .... 54.1 sour
Dec. 12.... 52.3 sour
Dec. 19.... 52.1 sour
Dec. 28.... 54.4 tart
1913
Jan. 2. .... 52.5 tart


1.63 1.89 2.69 4.69
1.49 2.16 2.60 4.87
1.37 2.36 2.84 5.32
1.38 2.63 2.84 5.61
1.36 2.55 2.85 5.54
1.25 2.99 3.01 6.15
1.39 2.93 3.22 6.31
1.15 3.38 3.25 6.81
1.19 2.50 3.30 5.93
1.20 2.74 3.32 6.20
1.12 3.69 3.37 7.26
1.13 3.65 3.53 7.38

0.94 3.73 3.71 7.64


SEEDLING-Orlando-J. E. Turner.
1912
Oct. 3..... 51.4 sour 1.20 2.35 2.79 5.26
Oct. 12.... 56.2 sour 1.30 2.04 2.64 4.79
Oct. 17.... 54.0 v. sour 1.49 2.55 2.48 5.16
Oct. 24.... 55.5 sour 1.35 2.90 2.69 5.75
Nov. 1..... 51.8 sour 1.26 3.47 3.09 6.73
Nov. 7..... 51.9 v. sour 1.44 3.66 2.95 6.81
Nov. 14... 54.3 sour 1.36 3.02 2.57 5.74
Nov. 22.... 49.8 sour 1.37 3.55 3.02 6.75
Dec. 2..... 50.5 tart 1.01 3.99 3.64 7.83
Dec. 7..... 45.1 tart 1.16 4.29 3.71 8.22

SEEDLING-Tampa-E. Holtsinger.

Oct. 7..... 49.6 v. sour 1.50 2.06 2.65 4.81
Oct. 15 ... 51.3 v. sour 1.42 2.25 2.68 5.05
Oct. 21.... 51.4 sour 1.46 2.64 2.97 5.75






Florida Agricultural Experiment Station


0
N
N
N
N
D
D
D
D


SEEDLING-Tampa-E. Holtsinger (continued)
Date Per- Taste Acid- Su- Red- Total Ratio
cent. ity crose ucing | Sugar lacid
Juice ] Sugar I to
I | sugar
ct. 28.... 54.2 sour 1.32 2.62 3.18 5.94 4.5
ov. 4..... 49.2 sour 1.18 2.85 2.96 5.96 5.0
ov. 11.... 52.0 sour 1.31 3.17 3.48 6.51 5.0
ov. 18.... 50.6 sour 1.26 3.64 3.58 7.41 5.9
ov. 25.... 52.0 sour 1.29 3.20 3.67 7.03 5.4
ec. 3..... 54.0 tart 1.17 3.47 3.73 7.39 6.3
ec. 10 ... 51.2 sour 1.23 4.16 3.65 8.03 6.5
ec. 24.... 49.3 tart 1.10 4.64 2.24 7.13 6.5
ec. 30.... 54.5 tart 1.18 4.67 4.35 9.26 7.1


1913
Jan. 7. .... 56.2
Jan. 13.... 52.0
Jan. 21.... 48.7
Feb. 3. .... 52.3


sweet
tart
sweet
sweet


0.82 4.34 3.36 7.93
1.09 4.93 4.84 10.03
0.99 5.02 4.94 10.23
1.01 5.18 5.24 10.70


9.7
9.2
10.3
10.6


SEEDLING-Punta Gorda-J. M. Weeks.


1912
Nov. 16.... 54.4 sour 1.00 3.78 2.94 6.92
Nov. 23.... 53.4 tart 0.87 3.27 3.07 6.51
Nov. 30.... 51.3 tart 0.86 3.75 3.24 7.19
Dec. 7..... 49.3 sweet 0.86 4.30 3.36 7.89
Dec. 14.... 51.6 sweet 0.80 4.22 3.15 7.60
Dec. 23.... 57.1 sweet 0.77 4.22 3.34 7.78
Dec. 30.... 53.9 sweet 0.72 4.27 3.47 7.96
1913
Jan. 6..... 53.6 sweet 0.71 4.52 3.60 8.36
Jan. 11. ... 52.7 sweet 0.74 5.41 3.89 9.59
Jan. 20.... 51.1 sweet 0.64 4.45 3.82 8.50
Jan. 25.... 49.8 sweet 0.65 4.91 3.96 9.13
Feb. 3..... 49.3 sweet 0.58 5.00 3.70 8.97
Feb. 8..... 50.5 sweet 0.51 5.16 3.63 9.06


6.9
7.4
8.3
9.2
9.5
10.0
11.5

11.8
13.0
13.2
14.0
15.5
17.8


SEEDLING-Alva-Edw. Parkinson.

1912
Nov. 19.... 54.0 tart 0.95 4.06 3.74 8.02 8.4
Nov. 26.... 53.1 tart 0.97 4.24 4.01 8.48 8.7
Dec. 3..... 54.0 tart 0.90 3.95 4.08 8.24 9.1
Dec. 10.... 51.5 sweet 0.80 4.29 4.29 8.80 11.0
Dec. 20.... 53.0 sweet 0.81 4.67 4.02 8.93 11.0
Dec. 27.... 54.9 sweet 0.71 4.62 4.14 9.00 12.7






Bulletin 115


SEEDLING-Alva-Edw. Parkinson (continued)
Date Per- Taste Acid- Su- Red- Total Ratio
cent. ity crose ucing Sugar I1 acid
IJuice I Sugar [ to
sugar
1913
Jan. 9..... 56.2 sweet 0.67 4.93 4.51 9.70 14.4
Jan. 14.... 58.4 sweet 0.72 5.15 4.37 9.79 13.5
Jan. 22... 55.1 sweet 0.69 5.25 4.72 10.24 14.8
Jan. 30.... 54.1 sweet 0.68 5.13 4.42 9.82 14.4
Feb. 5..... 49.7 sweet 0.66 5.23 4.56 10.07 15.2


SEEDLING-Florence Villa-Florence Villa Fruit Co.

1912
Sep. 20.... 41.9 v. sour 1.92. ... .... 4.86 2.5
Sep. 27.... 49.7 v. sour 1.85 .... ... 4.84 2.6
Oct. 4..... 50.2 v. sour 1.48 2.17 3.00 5.28 3.6
Oct. 11 ... 52.0 v. sour 1.62 1.67 2.62 4.38 2.7
Oct. 16.... 51.9 v. sour 1.50 2.48 2.84 5.45 3.6
Oct. 24.... 56.0 v. sour 1.52 2.85 2.96 5.96 3.9
Nov. 1..... 52.8 sour 1.22 3.20 2.92 6.28 5.1
Nov. 7..... 51.9 sour 1.34 3.54 3.30 7.02 5.2
Nov. 15.... 56.5 sour 1.27 3.66 3.36 7.23 5.7
Nov. 20 ... 54.9 sour 1.27 3.85 3.56 7.61 6.0
Dec. 4..... 52.0 sour 1.16 4.19 3.65 8.06 6.9
Dec. 11 ... 53.1 tart 0.91 3.92 3.42 7.55 8.3
Dec. 23.... 53.4 sweet 0.83 4.64 3.52 8.41 10.1
1913
Jan. 6..... 59.3 sweet 1.01 4.65 4.16 9.05 8.9


SEEDLING-Arcadia-C. S. Bushnell.

1912
Sep. 26.... 45.9 v. sour 1.61 ... .... 5.36 3.3

SEEDLING-Sarasota-Sub-Exchange.

Oct. 12.... 55.9 v. sour 1.47 1.53 2.14 3.75 2.5
Oct. 16. ... 60.0 sour 1.14 2.21 2.40 4.72 4.1

SEEDLING-Geneva (Oviedo) J. W. Flynt.
Oct. 19.... 53.8 v. sour 1.41 1.79 2.82 4.70 3.3





Florida Agricultural Experiment Station


SEEDLING-Lowell-Wetumpka Fruit Co.
Date Per- I Taste IAcid-I Su- I Red- Total I Ratio
cent. I ity crose ucing Sugar lacid
Juice I I Sugar I to
SI I I I sugar
Oct. 11.... 53.0 sour 0.98 2.59 2.96 5.69 5.8
Oct. 23.... 53.0 tart 0.74 3.80 2.63 6.63 9.0

TANGERINE-Boardman-F. G. Sampson.
(Fruit taken from 12 trees.)
Nov. 21.... 61.1 tart 0.96 4.10 3.11 7.43 7.7
Nov. 29.... 60.2 tart 0.90 4.79 3.09 8.14 9.0
Dec. 4..... 58.0 tart 0.91 4.74 3.01 8.00 8.8
Dec. 10.... 59.6 tart 0.91 4.82 2.99 8.07 8.9
Dec. 19 .... 59.2 sweet 0.85 5.31 3.01 8.60 10.1
Dec. 28... 60.2 sweet 0.71 5.05 2.81 8.13 11.4
Dec. 31........ sweet 0.76 5.62 2.89 8.80 11.6
1913
Jan. 11.... 60.5 sweet 0.73 5.70 2.72 8.72 11.8

TANGERINE-Oviedo-T. L. Mead.
(Fruit taken from 12 trees.)
1912
Nov. 21.... 53.3 tart 0.99 3.87 2.30 6.37 6.4
Nov. 30.... 54.8 sour 0.82 4.12 2.45 6.79 8.3
Dec. 5..... 56.0 tart 0.98 4.79 2.08 7.12 7.3
Dec. 12... 54.9 tart 0.81 4.84 2.21 7.30 9.0
Dec. 19... 57.7 tart 0.81 4.90 2.22 7.38 9.1
1913
Jan. 4..... 59.2 sweet 0.80 5.42 2.57 8.27 10.3

SATSUMA-Arcadia-C. S. Bushnell.
1912
Sep. 24.... 51.1 tart 1.22 ....... 6.13 5.0
Oct. 3..... 59.4 tart 0.90 2.86 3.31 6.32 7.0


GRAPEFRUIT
SILVER CLUSTER-Florence Villa-C. W. Harrington.

Oct. 3..... 45.4 sour 1.13 2.77 2.73 5.65 5.0
Oct. 11.... 47.4 sour 1.12 2.56 2.60 5.29 4.7
Oct. 18.... 47.7 sour 1.18 2.97 2.56 5.69 4.8
Oct. 24.... 49.0 sour 1.12 2.94 2.54 5.64 5.0





Bulletin 115


SILVER CLUSTER-Florence Villa-C. W. Harrington (continued)
Date Per- | Taste Acid- Su- Red- Total Ratio
cent. | ity | crose ucing Sugar lacid
SJuice | | Sugar I to
S I | | 1 sugar


Nov. 8. .... 49.5
Nov. 14.... 51.1
Nov. 21... 49.5
Nov. 30.... 49.2
Dec. 5..... 48.1
Dec. 12... 51.5
Dec. 20.... 50.9
Dec. 27.... 44.7
1913
Jan. 2..... 46.3
Jan. 9..... 52.7
Jan. 17.... 51.7
Jan. 23.... 51.6
Jan. 31.... 50.4
Feb. 6..... 53.6
Feb. 13.... 49.5
Feb. 13.... 49.5
Feb. 21.... 52.5
Feb. 27.... 49.1
Mar. 20.... 47.3
Mar. 28.... 51.2
Apr. 4..... 49.7
Apr. 12.... 50.0
Apr. 18.... 50.4
Apr. 24.... 52.5
May 1. .... 53.5


sour
sour
sour
sour
sour
sour
sour
sour

sour
tart
tart
tart
tart
tart
tart
tart
tart
tart
tart
tart
tart
tart
tart
tart
tart


1.18 3.16 2.71 6.04
1.15 3.23 2.66 6.06
1.26 3.21 2.87 6.25
1.15 2.96 2.86 5.99
1.17 2.91 3.16 6.22
1.18 2.94 2.90 6.00
1.26 3.18 2.96 6.30
1.10 3.02 3.08 6.26

1.22 2.97 2.94 6.06
1.10 2.70 3.21 6.06
1.02 2.89 3.21 6.16
1.06 3.29 3.34 6.80
1.13 3.43 3.32 6.93
1.04 3.16 3.11 6.44
1.14 2.93 3.49 6.58
1.14 2.93 3.49 6.57
1.07 3.51 3.32 7.01
1.02 2.55 3.38 6.06
1.02 2.75 3.37 6.27
0.97 2.63 3.55 6.32
0.95 2.67 3.63 6.44
0.91 2.95 3.75 6.85
0.98 2.87 3.71 6.74
0.94 2.92 3.90 6.98
0.94 2.67 3.97 6.78


SILVER CLUSTER-Florence Villa-Florence Villa Fruit Co.


1912
Oct. 16.... 49.8
Oct. 26.... 51.6
Nov. 1..... 51.3
Nov. 7..... 52.0
Nov. 15.... 53.1
Nov. 20.... 51.0
Dec. 4..... 48.2
Dec. 13.... 47.0


sour
sour
sour
sour
sour
sour
sour
sour


1913
Jan. 7...... 52.9 sour


1.18 3.05 2.78 5.99
1.16 3.43 2.72 6.33
1.17 3.15 2.86 6.17
1.22 3.41 3.15 6.74
1.22 3.41 3.03 6.62
1.22 3.62 2.96 6.77
1.17 3.50 2.63 6.31
1.30 3.40 3.11 6.69

1.21 1.87 3.19 5.16






Florida Agricultural Experiment Station


MARSH SEEDLESS-Terraceia-Terraceia Estates.
Date Per- | Taste IAcid- Su- Red- Total I Ratio
cent. | ity I crose ucing I Sugar lacid
Juice I Sugar i to
S I I I sugar


1912
Oct. 1. .... 52.8
Oct. 15.... 54.9
Oct. 21... 59.2
Oct. 29... 56.9
Nov. 5..... 59.8
Nov. 12.... 61.0
Nov. 19... 58.4
Nov. 26... 60.0
Dec. 3..... 58.6
Dec. 10.... 57.9
Dec. 17.... 61.0
Dec. 24 ... 64.3
Dec. 31.... 62.3
1913
Jan. 7..... 63.9
Jan. 14.... 61.8
Jan. 21. .. 61.3
Jan. 28 ... 61.8
Feb. 4..... 61.0
Feb. 11.... 61.7
Feb. 18 ... 62.1
Feb. 25... 60.8
Mar. 3..... 61.2


tart
tart
tart
sour
tart
sour
tart
sour
sour
sour
tart
tart
tart

tart
tart
tart
tart
tart
tart
tart
tart
tart


0.89 2.69 2.19 5.03
0.96 2.65 2.36 5.15
0.97 1.97 2.65 4.73
1.02 2.20 2.60 4.91
0.70 2.41 2.70 5.23
1.01 2.14 2.75 5.01
1.02 2.53 2.61 5.28
0.94 2.27 2.84 5.22
0.97 2.01 2.85 4.96
0.90 2.35 2.92 5.39
0.92 2.23 2.89 5.24
0.96 2.03 2.89 5.03
0.86 1.75 2.71 4.55

0.87 2.16 2.79 5.06
0.83 2.16 2.83 5.10
0.92 2.19 2.99 5.30
0.91 2.01 2.93 5.05
0.93 1.60 2.86 4.54
0.86 1.79 3.07 4.96
0.86 1.78 2.70 4.57
0.87 1.49 2.99 4.56
0.81 1.65 2.96 4.70


MARSH SEEDLESS-DeLand-H. B. Stevens.
(Fruit taken from 12 trees.)
1912
Nov. 13.... 52.2 sour 1.41 3.17 2.99 6.34 4.5
Nov. 22 ... 53.2 sour 1.30 2.47 3.57 6.17 4.7
Dec. 3..... 52,3 sour 1.34 3.03 3.57 6.76 5.0
Dec. 11 ... 50.6 sour 1.43 3.17 3.39 6.72 4.7
Dec. 17 ... 45,8 sour 1.48 3.62 3.33 7.14 4,8
Dec. 27... 53.3 sour 1.36 3.41 3.62 7.21 5.3
Dec. 31 ... 55.0 sour 1.32 3.66 3.43 7.28 5.5
1913
Jan. 7 .... 55.7 sour 1.33 2.66 3.51 6.32 4.7
Jan. 21... 53.8 sour 1.28 3.27 3.53 6.97 5.4
Jan. 28.... 50.1 sour 1.36 3.21 3.82 7.21 5.3

MARSH SEEDLESS-Glen St. Mary-Glen St. Mary Nursery Co.


1912
Oct. 26 ... 50.4
Nov. 26 ... ..


sour 1.27 3.08 2.57 5.81
sour 1.34 2.70 2.96 5.80






Bulletin 115


TRIUMPH-Florence Villa-Florence Villa Fruit Co.
Date Per- Taste | Acid- Su- Red- Total Ratio
cent. I ity I crose ucing | Sugar I lacid
Juice | Sugar to
I sugar


Oct. 16.... 40.3
Oct. 24.... 41.3
Nov. 1..... 38.9
Nov. 7..... 44.0
Nov. 20 ... 42.5
Dec. 5..... 43.3
Dec. 11.... 42.0
Dec. 23.... 45.1


tart
tart
tart
tart
tart
tart
tart
tart


0.91 3.47 2.43 6.08
0.77 4.05 1.99 6.26
0.86 4.29 2.39 6.90
0.84 4.17 2.57 6.96
0.96 4.51 2.73 7.48
0.97 4.47 2.73 7.43
0.98 4.42 2.82 7.47
0.79 4.17 2.35 6.74


TRIUMPH-Glen St. Mary-Glen St. Mary Nursery Co.

Oct. 26.... 42.5 sour 1.20 4.05 3.15 7.43
Nov. 27.... 43.9 sour 1.24 3.97 3.12 7.30


ROYAL-Glen St. Mary-Glen St. Mary Nursery Co.


Oct. 26.... 38.8
Nov. 18.... 44.3
Nov. 27.... 41.8
Dec. 3..... 45.7


sour 1.08 3.27 3.15 6.60 6.1
tart 0.91. 4.38 3.24 7.85 8.6
sour 1.18 3.19 3.29 6.64 5.6
tart 0.90 4.11 3.55 7.88 8.8


DUNCAN-Glen St. Mary-Glen St. Mary Nursery Co.

Oct. 26. ... 45.4 v. sour 1.45 3.24 2.71 6.12 4.2
Nov. 26. ... 43.5 v. sour 1.58 2.83 3.07 6.05 3.8


BUDDED-Winter Park-H. A. Ward.

Oct. 12.... 45.8 sour 1.31 1.91 2.67 4.68 3.6
Oct. 19.... 48.5 sour 1.24 2.66 2.55 5.35 4.4
Oct. 28.... 50.2 sour 1.35 2.71 2.77 5.63 4.2
Nov. 4..... 49.4 sour 1.28 2.48 2.79 5.41 4.2
Nov. 11.... 51.3 sour 1.31 3.00 2.85 6.00 4.6
Nov. 18.... 50.5 sour 1.35 3.18 2.90 6.27 4.6
Nov. 25.... 49.4 sour 1.30 2.72 3.11 5.97 4.6
Nov. 30... 48.3 sour 1.30 2.52 3.35 6.01 4.6
Dec. 9..... 50.4 sour 1.31 2.94 3.06 6.16 4.7
Dec. 17.... 47.5 sour 1.36 2.76 3.12 6.04 4.4
Dec. 24.... 49.6 sour 1.34 3.00 3.13 6.29 4.7





Florida Agricultural Experiment Station


BUDDED-Buckingham-D. S. Borland.
Date Per- Taste Acid- Su- Red- Total Ratio
cent. ity ] crose | ucing Sugar I acid
Juice | Sugar | to
SI sugar


Oct. 15.... 46.0 sour
Oct. 28.... 48.5 sour
Nov. 2..... 48.0 sour
Nov. 5..... 50.0 sour
Nov. 13... 51.3 sour
Nov. 21.... 50.1 sour
Nov. 29 ... 51.3 sour
1913
Jan. 14 ..... 50.1 sour
Jan. 24..... 50.8 sour
Feb. 17.... 54.6 sour


1.46 3.51 3.79 7.58
1.51 3.10 4.02 7.28
1.48 2.86 4.05 7.06
1.51 3.74 3.79 7.72
1.55 3.45 4.36 8.00
1.43 3.81 4.21 8.23
1.58 3.53 4.69 8.41

1.51 3.70 5.01 8.90
1.58 3.34 5.21 8.72
1.41 3.28 5.45 8.91


COMMON FLORIDA-Winter Park-W. C. Temple.


1912
Oct. 31.... 45.7
Nov. 8..... 49.0
Nov. 13.... 46.6
Nov. 21 ... 46.6
Nov. 27.... 47.3
Dec. 5..... 45.0
Dec. 11 ... 47.0
Dec. 18.... 44.4
Dec. 27... 51.2
1913
Jan. 2..... 47.7
Jan. 9..... 45.5
Jan. 16.... 44.7
Jan. 23.... 47.1
Jan. 30.... 46.8
Feb. 7..... 44.9
Feb. 13.... 51.7
Feb. 20.... 44.4
Mar. 22... 45.1
Mar. 29... 47.2
Apr. 4..... 45.7
Apr. 14 ... 48.4
Apr. 19.... 46.9
Apr. 24. ... 47.9
May 2.... 47.3


sour
sour
sour
sour
sour
sour
sour
sour
sour

sour
sour
sour
sour
tart
sour
sour
sour
tart
tart
tart
tart
tart
tart
tart


1.32 3.61 3.25 7.06
1.32 3.46 3.38 7.03
1.47 3.52 3.12 6.83
1.42 3.71 3.42 7.32
1.59 3.85 3.93 7.98
1.75 3.34 4.34 7:86
1.57 3.87 3.88 7.96
1.61 4.10 3.67 7.99
1.53 3.93 4.15 8.29

1.64 3.67 4.46 8.33
1.52 4.36 3.86 8.45
1.44 3.73 4.26 8.18
1.38 3.93 4.58 8.71
1.52 4.68 4.73 9.66
1.57 3.57 5.02 8.78
1.56 4.25 4.99 9.46
1.53 4.46 4.64 9.33
1.48 3.79 5.31 9.31
1.41 3.89 5.38 9.47
1.39 3.54 5.70 9.51
1.56 2.60 6.35 9.09
1.29 3.81 5.41 9.43
1.19 3.32 5.01 9.51
1.25 3.43 5.56 9.17


5.3
5.3
4.6
5.2
5.0
4.5
5.1
4.9
5.4

5.1
5.6
5.7
6.3
6.4
5.6
6.0
6.1
6.3
6.7
6.8
5.8
7.3
7.1
7.3






Bulletin 115


COMMON FLORIDA-Cocoanut Grove-Cocoanut
Growers' Association.


Taste Acid- |
ity I
I I


Su- Red-
crose I ucing I
I Sugar
i I


1.05 3.13
1.15 3.20
1.16 2.92


Grove Citrus

Total Ratio
Sugar 1 acid
Sto
Isugai


3.07 6.36
3.32 6.69
3.99 7.07


Date



1912
Nov. 12...
Nov. 22 ...
Nov. 30....
1913
Jan. 15 ...
Mar. 13 ...


Per-
cent.
Juice


46.4
50.3
52.4

52.9
61.2


sour 0.91 2.14 3.50 5.76 6.3
tart 0.76 1.69 3.38 5.15 6.8


sour
sour
sour




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