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Peach and nectarine varieties and selections at Monticello, Florida in 1967

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Title:
Peach and nectarine varieties and selections at Monticello, Florida in 1967
Creator:
Young, H. W.
Publisher:
Big Bend Horticultural Laboratory, University of Florida
Language:
English

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Source Institution:
University of Florida
Rights Management:
Copyright Board of Trustees of the University of Florida
Resource Identifier:
148081144 ( OCLC )

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BIG BEND HORTICULTURAL LABORATORY
OCT 27 1937
Monticello, Florida

Big Bend Hort. Lab* Mimeo Report 68-1 Ociob!aP 10, 49P7


PEACH AND NECTARINE VARIETIES AND SELECTIONS AT MONTICELL09 FLORIDA IN 1967.

by He We Young

This is a report on peach and nectarine varieties and advanced selections at Monticello in 1967.

Yields. - The 1967 records (summarized in Table 1) were taken on fruit that
was considered nearly ripe, They would have been harvested about two days earlier if they had been picked for commercial shipment. In comparing yields of any two varieties$ age of tree should be considered. The age of tree is listed in the table as the number of years the tree has been in the orchard and includes 1967. For example, a tree planted in February 1964 is listed as 4 years of age.

Fruit Characteristics,- At each harvest ten representativeesound fruit were
measured and these measurements averaged at the end of the season for each tree and variety. (Table 2). The beak orpoint at the bottom end of the fruit, even though quite small, is listed because some varieties exhibit a tendency to have a prominent beak in some years.

Chilling Hours.- The number of hours of temperature at or below 45 degrees F. after October 1. 1966,, in the winter of 1966-67 were: 517 before January 15; 622 before January 31; 776 before February 15; and 886 before February 28, There appeared to be sufficient cold temperatures to satisfy the chilling requirements of all varieties.

Late-Spring Freezes.- Low temperatures in the early spring reduced the yields on all medium to low chilling varieties. This year emphasized the fact that varieties with too low chilling requirements are very apt to flower too early and thereby lose most of the young fruit in late spring freezes. Temperatures that affected fruit set were 310 on March 17, 190 on February 26, 200 on February 27 and 290 on February 28.

Fruit Thinning.- On the most part, fruit thinning was not necessary this year because of the late spring freezes, however, those varieties that had sufficient fruit were thinned adequately and fruit size was satisfactory.

Fertilization.- Approximately 750 pounds per acre of 10-10-10 was broadcast in the spring of 1967. Neutral Zinc was applied as a foliage spray.

Diseases, Insects, and Spray Program.- Scab was present, but was not considered serious. Bacterial spot was insignificant. Brown rot was not a problem this year. Stink bugs and other insects that cause misshapen fruit were at a low level, Only small isolated incidences of White Peach Scale was evident. The spray program used consisted mainly of parathion and sulphur. Two trunk applications of dieldrin was applied after harvest for borer control.

lAssociate Horticulturist and Head,

HWY
300 cc
TM










Table 1: Peach and Nectarine yield, bloom, foliage break and harvest at
Monticello, Florida, in 1967.


Variety Age No. First Average per tree
or of of Foliage Full Ripe No of Wt. in Ave. Wt.
Selection1 Tree Trees Break Bloom Fruit Fruit Lbs. per fruit


I


iNurbers with no letter - Gainesville Q - Quincy M - Monticello


F - Fresno FV - Fort Valley A - Texas


Springtime 3 2 3/8 3/8 5/9 505 48.5 .096
Earligold 3 2 3/8 2/20 5/9 342 38.2 .111
Earligold 4 3 2/20 3/2 5/11 188 24.3 .129
FV9-266 4 2 3/9 3/9 5/15 52 11.8 .227
Q310-7(Q46) 3 4 3/10 3/10 5/15 153 26.0 .170
Junegold 3 2 3/8 3/8 5/19 46 10.0 .217
94-61 2 1 2/15 2/20 5/19 36 4.7 .130
90-55 2 1 3/8 2/15 5/19 45 4.5 .100
97-48 4 2 2/20 3/3 5/25 22 5.8 .263
Maygold 3 10 3/13 3/13 5/30 333 78.1 .232
Maygold 4 10 3/13 3/13 6/2 309 73.3 .237
83-48 4 2 2/20 2/22 6/1 73 13.5 .185
Flordahome 3 1 3/8 - 6/7 61 12.3 .201
Meadowlark 3 2 3/8 3/8 6/7 253 40.3 .159
Al80-10 4 1 - - 6/7 40 5.5 .137
A-188-29 4 1 - - 6/7 28 4.4 .157
A181-176 4 1 - - 6/7 17 2.5 .147
69-83(n) 4 3 2/20 2/20 6/7 30 8.6 .286
Flordaqueen 3 2 3/9 3/3 6/7 7 2.8 .400
F83-16 4 7 2/20 2/22 6/7 29 7.2 .251
M302-40 4 1 2/20 2/22 6/7 7 1.8 .257
M302-38 4 1 2/20 3/10 6/7 27 7.5 .277
40A21 4 1 2/3 2/13 6/7 8 2.2 .275
95-16 4 3 2/6 2/20 6/7 6 2.0 .333
Bonita 3 2 3/10 3/5 6/7 25 9.0 .320
Q303-24(Q42)n 3 4 3/10 3/10 6/12 95 17.4 .183
Q303-24(Q42)n 4 8 2/20 2/20 6/10 9 2.8 .311
Suwannee 3 1 3/8 - 6/16 32 11.1 .346
Q303-3(Q44)n 3 4 3/10 3/10 6/16 114 15.3 .134
Q303-4(Q45)n 3 4 3/10 3/10 6/16 106 23.1 .218
FV323-12 4 4 3/29 3/9 6/16 84 27.8 .331
73-25 4 1 2/10 2/20 6/16 9 3.5 .388
Q301-13n 4 6 2/13 2/20 6/16 4 1.3 .325
Q313-22(Q43)n 3 4 3/10 3/10 6/22 72 17.9 .248
Q516-34(Q41)n 3 4 3/10 3/10 6/22 84 14.6 .173
Q304-3 4 1 2/10 2/20 6/22 9 2.0 .222
Q314-2n 4 4 3/9 3/1 6/22 29 11.6 .400
Q313-22(Q43)n 4 4 3/9 3/9 6/22 15 5.7 .380
Sunhigh 3 2 3/29 3/15 6/27 6 1.8 .300
Saturn 3 1 3/8 3/8 6/27 179 34.8 .194
o fruit was harvested from the following 3 year old trees:FlordawonQ209-31,26-43.
No fruit was harvested from the following 4 year old trees:F81-79,M302-39,
M302-41,Rochon,9-67,72-22,73-47973-96,F82-59Q314-21,Q314-12nF55-74,1l-7,l-26.


j











Table 2: Fruit characteristics of peach and nectarine varieties and selections
at Monticello, Florida, in 1967.


Variety Age Cling Beak
or of Percent Fruit Measurement in inches Flesh or Length
Selection1 Tree Overcolor Dia.w Diar0 Length Color Free in MM

Springtime 3 61 1.590 1.684 1.893 W Cl 8
Earligold 3 58 1.643 1.680 1.821 Y Cl 4
Earligold 4 45 2.026 L.979 2.180 Y C1 4
FV9-266 4 70 2.293 2.287 2.400 Y F 5
Q310-7(Q46) 3 62 2.004 2;094 2.155 Y Cl 3
Junegold 3 60 2,206 2.287 2.537 Y C1 10
94-61 2 75 2.087 2.137 2.137 Y F 3
90-55 2 75 1.737 1.862 1.937 Y F 3
97-48 4 70 2.246 2.359 2.403 Y C1 4
Maygold 3 ?5 2.283 2.370 2.502 Y C1 6
Maygold 4 75 2.309 2.404 2.557 Y Cl 6
83-48 4 70 2.272 2.331 1.956 Y C1 3
Flordahome 3 60 2.112 2.262 2.525 W F 10
Meadowlark 3 74 1.979 2.107 2.099 Y F 4
A180-10 4 80 1.900 1.875 2.012 Y F 4
A188-29 4 75 2.050 2.025 2.125 Y F 4
A181-176 4 75 1.975 1.950 2.075 Y Cl 5
69-83n 4 77 2.487 2.552 2.354 Y F 0
Flordaqueen 3 40 - - - Y F-Cl 4
F83-16 4 75 2.308 2.346 2.385 Y F 4
M302-40 4 70 - - - Y F 3
M302-38 4 67 2.437 2.487 2.487 Y F 5
40A21 4 70 - - - Y F 1
95-16 4 50 2.450 2.425 2.512 Y F 5
Bonita 3 50 2.381 2.712 2.631 Y Cl 3
Q303-24(Q42)n 3 85 1.982 2.078 2.013 Y F 1
Q303-24(Q42)n 4 85 2.431 2.512 2.425 Y F 1
Suwannee 3 75 2.500 2.550 2.662 Y F 7
Q303-3(Q44)n 3 73 1.873 2.020 2.062 W F 1
Q303-4(Q45)n 3 80 2.118 2.153 2.162 Y F 1
FV323-12 4 74 2.661 2.714 2.710 Y F 6
73-25 4 75 - - - Y F 6
Q301-13n 4 75 - - - Y F 1
Q313-22(Q43)n 3 74 2.148 2.268 2.246 Y F 2
Q516-34(Q41)n 3 83 1.983 2.020 1.996 Y F 2
Q304-3 4 70 - - - Y F 2
Q314-2n 4 60 2.632 2.786 2.824 Y F 2
Q313-22(Q43)n 4 73 2.642 2.728 2.622 Y F 1
Sunhigh 3 - - - - Y F
Saturn 3 40 2.025 2.125 2.22.2 Y F 6

*-Diameter at right angle to suture.
* ' Diameter through the suture.

iNumbers with no letters - Gainesville F - Fresno
Q - Quincy FV -Fort Valley
M - Monticello A - Texas




Full Text

PAGE 1

/00 p:: t. 3 & ,,,,, -B Pl. 62-I BIG BEND HORTICULTURAL LABORATORY Monticello, Florida Big Bend Hort. Lab. Mimeo Report 68-l OCT 271967 PEACH AND NECTARINE VARIETIES AND SELECTIONS AT MONTICELLO, FLORIDA IN 1967. by H. w. Young This is a report on peach and nectarine varieties and advanced selections at Monticello in 1967. Yields. The 1967 records (summarized in Table l) were taken on fruit that was considered nearly ripe. They would have been harvested about two days earlier if they had been picked for commercial shipment. In comparing yields of any two varieties, age of tree should be considered. The age of tree is listed in the table as the number of years the tree has been in the orchard and includes 1967. For exanple, a tree planted in February 1964 is listed as 4 years of age. Fruit Characteristics.At each harvest ten representative~sound fruit were measured and these measurements averaged at the end of the season for each tree and variety. (Table 2). The beak or~point at the bottom end of the fruit, even though quite small, is 1isted because some varieties exhibit a tendency to have a promi nent beak in some years. Chilling Hours.The number of hours of temperature at or below 45 degrees F. after October 1, 1gs5, in the winter of 1966-67 were: 517 before January 15; 622 before January 31; 776 before February 15; and 886 before February 28, There ap peared to be sufficient cold temperatures to satisfy the chilling requirements of all varieties. Late Spring Freezes.Low temperatures in the early spring reduced the yields on all medium to low chilling varieties. This year emphasized the fact that varie ties with too low chilling requirements are very apt to flower too early and there by lose most of the young fruit in late spring freezes. Temperatures that affected fruit set were 31 on March 17, 19 on February 26, 20 on February 27 and 29 on February 28. Fruit Thinning,On the most part. fruit thinning was not necessary this year because of the late spring freezes, however, those varieties that had sufficient fruit were thinned adequately and fruit size was satisfactory, Fertilization,Approximately 750 pounds per acre of 10-10-10 was broadcast in the spring of 1967. Neutral Zinc was applied as a foliage spray. Diseases, Insects, and Spray Program.Scab was present, but was not con sidered serious. Bacterial spot was insignificant. Brown rot was not a problem this year. Stink bugs and other insects that cause misshapen fruit were at a low level, Only small isolated incidences of White Peach Scale was evident. The spray program used consisted mainly of parathion and sulphur, Two trunk applications of dieldrin was applied after harvest for borer control. 1 Associate Horticulturist and Head, HWY 300 cc

PAGE 2

ITable l: Peach and Nectarine yield, bloom, foliage break and harvest at Monticello, Florida, in 1967. Variety Age No. First __ f:''{_e:riage per tree or of of Foliage Full Ripe Selectionl Tree Trees Break Bloom Fruit N~ of . Wt. in Ave. Wt. Fruit Lbs. per fruit Springtime 3 2 3/8 3/8 5/9 505 48.S .096 Earligold 3 2 3/8 2/20 5/9 342 38.2 .lll Earligold 4 3 2/20 3/2 5/ 11 188 24. 3 .129 FV9-266 4 2 3/9 3/9 5/15 52 ll. 8 227 Q310-7(Q46) 3 4 3/10 3/10 5/15 153 26.0 .170 Junegold 3 2 3/8 3/8 5/19 46 10.0 .217 94-61 2 l 2/15 2/20 5/19 36 4.7 .130 90-55 2 l 3/8 2/15 5/19 45 4.5 .100 97-48 4 2 2120 3/3 5/25 22 s.a .263 Maygold 3 10 3/13 3/13 5/30 333 78.l .232 Maygold 4 10 3/13 3/13 6/2 309 73~3 .237 83-48 4 2 2/20 2/22 6/l 73 13.5 .185 Flordahome 3 l 3/8 6/7 61 i2.3 .201 Meadowlark 3 2 3/8 3/8 6/7 253 40. 3 .159 Al80-l0 4 l 6/7 40 5.5 .137 A-188-29 4 l 6/7 28 4.4 .157 AlBl-176 4 l 6/7 17 2.5 .147 69-83(n) 4 3 2/20 2/20 6/7 30 8.6 .286 Flordaqueen 3 2 3/9 3/ 3 6/7 7 2. 8 400 F83-l6 4 7 2/20 2/22 6/7 29 7-2 .251 M302-40 4 l 2/20 2/22 6/7 7 1. 8 257 M302-38 4 l 2/20 3/10 6/7 27 7.5 .277 40A2l 4 l 2/3 2/13 6/7 8 2.2 .275 95-16 4 3 2/6 2/20 6/7 6 2.0 333 Bonita 3 2 3/10 3/5 6/7 25 8.0 .320 Q303-24(Q42)n 3 4 3/10 3/10 6/12 95 17.4 .183 Q303-24(Q42)n 4 a 2/20 2/20 6/10 9 2.8 .311 Suwannee 3 l 3/8 6/16 32 11.l .346 Q303-3(Q44)n 3 4 3/10 3/10 6/16 114 15.3 .134 Q303-4(Q45}n 3 4 3/10 3/10 6/16 106 23.l .218 FV323-l2 4 4 3/29 3/9 6/16 84 27. 8 331 73-25 4 l 2/10 2/20 6/16 9 3.5 .388 Q301-13n 4 6 2/13 2/20 6/16 4 l. 3 325 Q3l3-22(Q43)n 3 4 3/10 3/10 6/22 72 17. 9 .248 Q516-34(Q4l)n 3 4 3/10 3/10 6/22 84 14.6 .173 Q304-3 4 l 2/10 2/20 6/22 9 2,0 .222 Q314-2n 4 4 3/9 3/l 6/22 29 11,6 .400 Q313-22(Q43)n 4 4 3/9 3/9 6/22 15 s. 7 380 Sunhigh 3 2 3/29 3/15 6/27 6 l. 8 300 Saturn 3 l 3/8 3/8 6/27 179 34. 8 . .194 No fruit was harvested from the following 3 year old trees:Flordawon,Q209-3l,26-43. No fruit was harvested from the following 4 year old trees:F81-79,M302-39, M302-4l,Rochon,9-67,72-22,73-47 1 73-96,F82-l5,Q314-2l,Q314-l2n,F55-74,ll-7,ll-26. 1 Nurrbers with no letter Gainesville Q Quincy M Monticello F Fresno FV Fort Valley A Texas

PAGE 3

Table 2: Fruit characteristics of peach and nectarine varieties and selections at Monticello, Florida, in 1967. Variety Age Cling Beak or of Percent Fruit Measurement in inches Flesh or Length Selectionl Tree Overcolor Ilia.* :Oial'in I.engtn Color Free in MM Springtime 3 61 l.590 l.684 l.893 w Cl 8 Earligold 3 58 l.643 l.680 1.021 y Cl 4 Earligold 4 45 2.026 ll979 2.180 y Cl 4 FV9-266 4 70 2.293 2.287 2.400 y F 5 Q3l0-7(Q46) 3 62 2.004 2;094 2~155 y Cl 3 Junegold 3 60 2.206 2~287 2.537 y Cl 10 94-61 2 75 2.087 2.137 2.,137 y F 3 90-55 2 75 1~737 l.862 l;.937 y F 3 97-48 4 70 2.246 2.359 2.403 y Cl 4 Maygold 3 7-5 2.283 2.370 2.502 y Cl 6 Maygold 4 75 2.309 2.404 2.557 y Cl 6 83-48 4 70 2.272 2.331 l.956 y Cl 3 Flordahorre 3 60 2.112 2.262 2.525 w F 10 Meadowlark 3 74 l.979 2.101 2.099 y F 4 AlB0-10 4 BO l,900 l.875 2.012 y F 4 Al88-29 4 75 2.050 2.025 2.125 y F 4 AlBl-176 4 75 l.975 l.950 2.075 y Cl 5 69-83n 4 77 2.487 2.552 2.354 y F 0 Flordaqueen 3 40 y F-Cl 4 F83-l6 4 75 2.308 2.346 2. 385 y F 4 M302-40 4 70 y F 3 M302-38 4 67 2.437 2.487 2,487 y F 5 40A2l 4 70 y F l 95-16 4 50 2.450 2.425 2.512 y F 5 Bonita 3 50 2.381 2. 712 2.631 y Cl 3 Q303-24(Q42)n 3 85 l.982 2.078 2.013 y F l Q303-24(Q42 )n 4 85 2.431 2.512 2.425 y F l Suwannee 3 75 2.500 2.s5o 2.662 y F 7 Q303-3(Q44)n 3 73 l.873 2.020 2.062 w F l Q303-4(Q45 )n 3 80 2.118 2.153 2.162 y F l FV323-12 4 7142.661 2. 714 2.710 y F 6 73-25 4 75 y F 6 Q30l-l3n 4 75 y F l Q3l3-22(Q43)n 3 74 2.148 2.268 2.246 y F 2 Q5l6-34(Q4l)n 3 83 l.983 2.020 l.996 y F 2 Q304-3 4 70 y F 2 Q314-2n 4 60 2.632 2. 786 2.824 y F 2 Q313-22(Q43)n 4 73 2.642 2. 728 2.622 y F l Sunhigh 3 y F Saturn 3 40 2.025 2.125 2.212 y F 6 *Diameter at right angle to suture. ** Diameter through the suture. lNumbers with no letters Gainesville F Fresno Q Quincy FV -Fort Valley M Monticello A Texas


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