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Group Title: AREC-H research report - Agricultural Research and Education Center-Homestead ; SB-77-1
Title: Compatibility of orange- and white-flesh sweet potato cultivars
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Permanent Link: http://ufdc.ufl.edu/UF00067843/00001
 Material Information
Title: Compatibility of orange- and white-flesh sweet potato cultivars
Series Title: Homestead AREC research report
Physical Description: 5 leaves : ; 22 x 36 cm.
Language: English
Creator: Conover, Robert A
Whatley, Booker T
Granberry, Darbie
Agricultural Research and Education Center, Homestead
Publisher: University of Florida, Agricultural Research and Education Center
Place of Publication: Homestead Fla
Publication Date: 1977
 Subjects
Subject: Sweet potatoes -- Varieties -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: Robert.A. Conover, Booker T. Whatley, Darbie Granberry.
General Note: "February 1, 1977"
 Record Information
Bibliographic ID: UF00067843
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 72531985

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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






Homestead AREC Research Report SB77-1 February 1, 1977

/ Compatibility of Orange- and White-Flesh
Sweet Potato CultivarsI

Robert A. Conover, University of Florida Agricultnral at e Y
and Education Center, Homestead, Florida.'
Booker T. Whatley, Tuskegee Institute, Alabama.
Darbie Granberry, University of Georgia ExtensioneSearehi / |
Center, Attapulgus, Georgia.

Permanent seed nurseries of orange-fleshed and white-fleshdps eejpp a ualci~lvars
and breeding stocks were established at Homestead, Florida.in 1974, The main-pur-
pose of the nurseries was to produce true seed for a cooperative sweet potato breed-
ing program between Tuskegee Institute, Alabama and the University of Florida
Agricultural Research and Education Center at Homestead. A large number of con-
trolled pollinations were made and considerable information was obtained on the
compatibility of the selected cultivars and breeding stocks present in the nursery.
This report is for the purpose of making this information available to members of
the National Sweet Potato Collaborators Group and to others who may be interested in
sweet potato breeding.

Sweet potato stocks in both nurseries were set in the field in January, 1974 and
grown continuously (sweet potatoes grow as perennial plants in the Homestead area)
except for the replacement of an occasional plant lost as a result of rot following
attacks of the sweet potato weevil.

Controlled pollinations were begun in April, 1974 and continued until February, 1976.
* In both nurseries all entries were selfed and an effort was made to make crosses
between all stocks although this was not possible because some lines produced very
few flowers. The cultivars and breeding stocks included in the orange-fleshed nur-
sery are listed in Table 1 which also presents the number of specific crosses made
as well as those that were successful. Table 2 presents the percentage of crosses
which were successful. Similar information for white-fleshed cultivars and breeding
stocks is presented in Tables 3 and 4.

Compatibility or incompatibility as used in this report refers only to the success
or failure of a given cross to set capsules containing one or more seeds. The under-
lying causes of incompatibility or methods to overcome incompatibility were not
investigated.

Results and Discussion

A total of 6,400 controlled pollinations was made of which 955, or about 15%, set
seed. Although the numbers of pollinations were too low in many instances to be
conclusive, the results obtained do provide considerable information on the com-
patibility of the cultivars and breeding stocks included in the study, and on their
relative capabilities to function as male or female parents. On the average pol-
linations of the white-fleshed types were much more successful than those of orange-
fleshed lines. But within these groups there was much variation in the performance
of individual lines whether considered as female or as pollen parents.

The most definitive results were obtained on self-compatibility. Perusal of the
results presented in Table 1, 2, 3 and 4 indicate that only 'White Triumph' was
consistently self-compatible. Thirty-eight percent of the self-pollinations of
'White Triumph' were successful whereas only an occasional self-pollination was suc-
cessful with all other stocks.

There was much variation in compatibility of a given stock in crosses with other
stocks and their reciprocals. Seventy-five percent of the 155 crosses between
white-fleshed types was compatible whereas only 48% of the crosses of orange-fleshed
stocks was fertile. When used as a female parent, 'White Triumph' and TI 27-71 were
the most compatible white-fleshed stocks, 'Australian Canner', 'Vogel White' and
'White Centennial' were the least compatible. As pollen parents, 'Boniato' and
'Purple Stem' (probably 2 names for the same cultivar) were compatible with every
other white-fleshed stock, 'Star Leaf', PI 315343 and 'White Triumph' were incom-
patible with only one stock (a different one, in each case). Only 50% of the crosses
made with pollen from 'White Centennial' and 'Australian Canner' were fertile. Among
the orange-fleshed lines, the most compatible females were TI 44-71, L9 153 and
M7-21, 'Goldrush', 'Redmar' and 'Nugget' were the least compatible. As pollen
parents, 'Georgia Red' and 'Red Jewel' were the most compatible and 'Rose Centennial',
M7-21 and LO 132 the least compatible of the orange-fleshed lines.


1Presented at the National Sweet Potato Collaborators Conference, Atlanta, Georgia,
February 5-6, 1977. The authors express their appreciation for the excellent
assistance of Joyce Francis and Sara Walker.










Table 1. Compatibility of orange-fleshed cultivars
number of capsules bearing one or more seeds.


and breeding stocks. Denominator is the number of controlled pollinations made; numerator is the


Female TI44- L9- L9- L7- LO- M7- NC NC NC Red Rose Georgia
Male 71 190 163 177 132 21 289 172 304 Jewel Jewel Cent. Cent. Redmar Goldmar Goldrush Red Nugget Total

T144-71 0/112 5/14 4/8 0/12 0/17 1/16 0/6 2/24 1/4 0/12 6/22 0/8 0/15 2/22 0/8 1/12 22/312
L9-190 0/16 0/3 0/12 0/3 0/10 4/9 8/12 0/4 1/3 6/16 3/13 0/15 4/11 0/16 26/143
L9-163 2/20 0/15 0/9 1/10 0/6 1/16 0/4 1/11 0/13 0/10 2/23 0/10 7/147
L7-177 5/11 1/9 1/7 0/18 0/5 1/17 0/5 0/11 2/10 10/93
LO-132 0/15 1/5 0/14 1/12 0/12 6/11 0/6 2/12 0/10 0/8 0/9 10/114
M7-21 2/6 0/15 0/12 1/6 0/5 0/5 1/5 0/10 1/13 0/22 0/21 0/9 2/5 0/11 7/145
NC 289 3/20 2/10 0/10 0/48 2/10 0/10 3/14 1/8 0/17 0/16 0/14 0/8 0/14 11/199
NC 172 6/13 4/14 3/12 4/10 4/24 0/9 0/24 2/4 0/7 1/11 0/12 0/12 0/9 6/15 30/176
NC 304 2/16 7/20 3/15 0/3 0/59 3/6 1/12 0/23 0/15 0/24 0/15 0/7 16/215
Jewel 4/15 0/5 0/8 7/12 4/6 0/12 5/16 2/8 1/12 0/9 0/11 0/6 23/120
Red Jewel 6/10 3/8 1/12 0/17 2/18 5/11 0/10 0/11 5/9 3/7 1/9 3/14 0/14 0/15 29/165
Centennial 5/23 2/10 0/11 0/7 0/9 1/8 1/55 4/12 0/14 0/16 0/22 0/4 13/191
Rose Centennial 3/26 1/19 1/29 0/9 0/10 0/10 0/11 0/9 0/8 0/8 0/7 0/12 0/12 5/170
Redmar 2/11 0/12 3/12 0/19 0/12 1/2 1/7 0/24 0/11 0/67 0/17 0/12 0/9 7/215
Goldmar 4/12 2/7 3/15 1/27 1/36 0/19 0/4 1/5 0/12 1/16 0/12 1/43 0/10 0/7 14/205
Goldrush 4/39 2/13 0/12 0/9 0/7 1/13 0/9 0/7 0/9 0/57 7/175
Georgia Red 0/9 1/14 2/12 3/8 7/15 0/7 8/14 5/14 26/93
Nugget 11/14 3/8 0/10 3/6 0/8 7/12 2/6 1/11 0/7 1/16 0/14 28/112

59 14 4 6 26 17 26 30 7 7 44 19 3 17 1 2 9 291
Total 388 68 8 58 213 292 158 269 67 97 269 183 251 276 235 13 145 2990









Table 2. Percentage of controlled pollinate of orange-fleshed sweet potato cultivars and breeding stocks which set capsules bearing seeds.


Table 2. Percentage of controlled pollinatiuns of orange-fleshed sweet potato cultivars and breeding stocks which set capsules bearing seeds.


_Female
Male -


TI44 L9 L9 Li LO M7
71 190 163 177 132 21


NC NC NC
289 172 304


Red
TJewpe1 .Tpwl


Rose
Cent- Cpnt.-


Rpdmar (Th1Almnr ~Thlr1!llh


T144 71
L9-190
L9-163
L7-177
LO-132
M7-21
NC-289
NC-172
NC- S04
Jexiel
PFd Jevel
Centanniala
Rose Laatenr~ial
2-edmar
GoldImar
Goldrush
Georgia Red
Nugget

Avg. %
(female)*


50 0 0
0 0
0
11
C 8
0
0
25 40
35
0
38 8
20

0
20
15
7
38


21 50 10 12 6 16 11 10 7 16 10 1


of crosses made; it is not an avg. of the percentages of specific crosses.


Georgia
Rd C


Avg. %*
WN" aef (ma 1\n


33 9


.-- n t- Cent R c d hr---
Redma Goldar Godrus


-- -


-- -------~-~--I-


\rv~~~il


*Percentage calculated on total number





I


Table 3. Compatibility of white-fleshed cultivars and breeding stocks. Denominator
is the number of capsules bearing one or more seeds.


is the number of controlled pollinations made; numerator


lFemale
Male


PI TI Pelican
Tinian 315343 27-71 Processor


White White
Triumph Centennial W 14-716


TI Australix.'
83-73A Canner


-hite Wanly Voge
a :j r.: -11. White


Total


Tinian
PI 315343
TI 27-71
Pelican Processor
White Triumph
White Centennial
W 14-716
TI 83-73A
Australian Canner
White Star
Boniato
Nancy Hall
Vogel White
Purple Stem*
Star Leaf*


2/84
1/10
10/12
4/14
0/23
1/12
5/10
0/13
4/21
2/8
2/13
0/9
0/5
6/8
11/19


7/11
0/78
0/17
2/9
4/15
6/15
1/12
7/8
0/12
3/13
11/18
1/13
1/14
5/9


3/14
0/29
2/17
3/12
4/25
12/15
2/10
2/10
5/15
4/12
6/13
4/18
3/25
6/7
6/12


10/20
3/10
6/9
0/99
4/23
0/12
0/19
4/5
1/13
0/34
9/13
8/12
0/12

13/18


5/11
2/11
5/17
2/22
38/100
4/27
7/26
11/12
10/20
17/20
6/12
7/14
0/8


6/12
3/15
4/14
0/25
2/36
0/99
0/32
0/22
0/19
1/24
2/14


5/12


4/11
4/4
5/12
0/47
9/15
0/8
0/100
1/8
0/18
1/27
9/10
7/10


8/8


0/24
8/9
9/12
12/12
5/22
0/8
10/12
1/113
8/12
9/12
9/14
0/16
1/13

4/9


3/11
1/17
0/11
0/26
9/20
0/21
0/8
1/8
0/98
0/23
7/11


6/10
12/14


17/23
5/16
8/9
0/23
10/15
0/14
0/19
3/10
0/13
1/82
13/23
7/11


3/13
2/8
1/12
4/11
1/11
1/20
1/15
3/16
0/3
0/10
0/54
1/19
1/14


0/8


0? 6/21 62/262
7/12 3/11 39/230
50/242
2/4 0/8 35/302
3/6 5/12 94/366
24/251
1/11 0/17 27/291
0/7 4/10 37/241
28/244
2/4 0/12 40/281
9/17 7/19 90/231
0/54 0/5 35/181
2/45 8/136
28/46
7/18 61/106


31/234 66/262 55/324


57/300 127/308


18/311


45/325 80/287 25/263 82/282 18/214 24/122 36/178 664/3410


*Pollen of these bonisto-type sw-eet rotates was secured from commercial fields.


Total


-- -


z .- _


83-73A Cnnne-


I











Table 4. Percentage of controlled pollinations of white-fleshed sweet potato cultivars and breeding stocks which s-et .pule. bearing one
or more seeds.


PI TI Pelican
Tinian 315343 27-71 Processor


White White
Triumph Centennial W 14-716


TI Austral--i.z: 'Wh.
83-73A Canner Sta:;


.y Vogel
In! i all Whi te Tota l*


Tinian
PI 315343
TI 27-71
Pelican Processor
White Triumph
White Centennial
W 14-716
TI 83-73A
Australian Canner
White Star
Boniato
Nancy Hall
Vogel White
Purple Stem
Star Leaf


Total*


36
100
42
0
16
0
0
13
0
4
90
70


0
89
75
100
23
0
83
1
67
75
64
0
8


42 100

14 28


13 25 17


8 20 20


*Percentage calculated on total number of crosses made; it is not an avg. of percentages of specific crosses.


\ Female
Male -


-- -- ----- -




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