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A.
Characterization of the genetic status of 58 landraces
sample:
From 650 guinea landraces evaluated for 18
parameters, 58 were retained as a representative of the
diversity, geographical distribution, yield potential and
grain quality. They were identified using 3 caudatum A lines
(manely ICSA9001, ICSA8702, ICSA38 as B for 32 entries and R
for 15 entries). 11 were rejected because of its partial
seed set.
Conversion of caudatum A
lines to guinea A lines:
2 guinea A lines are currently
available of Sariaso 09 A and CRPA 19 A. They have reached the F1BC6
stage and have been used to make the first guinea hybrids. During 2002
growing season, five new guinea A lines reached the F1BC6 stage. They
were derived from ICSA8207 and guinea landraces and include: Oueni A,
CRPA 33
A, G205 A, CVS 435 A and CRPA 22 A
New guinea A lines developed in 2002
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Crosses
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Designation
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ICSA 8207 x Oueni
ICSA 8207 x CRPA 33
ICSA 8207 x G 205
ICSA 8207 x GV435
ICSA 8207 x CRPA22
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Oueni A
CRPA 33
G205 A
CVS 435 A
CRPA 22 A |
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Expected new
Guinea A lines:
About 64
new guinea A lines are in the pipeline (F1BC4 or F1BC5). 151
entries ranged from F1BC2 to F1BC6. They derived from the 3
ICSA caudatum lines and include:
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Crosses
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New A lines available
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Generation
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ICSA8207 x Guinea
ICSA 9001 x Guinea
ICSA 38 x Guinea
Total
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32
31
1
64
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F1BC5
F1BC4
F1BC4 |
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First experimental guinea hybrids developed
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sariaso 09 A x Nongomsoba
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sariaso 09 A x sariaso 02
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sariaso 09 A x CVS 532
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sariaso 09 A x Ouedzouré
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sariaso 09 A x Tioadi
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sariaso 09 A x S29
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sariaso 09 A x Frikan
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sariaso 09 A x CRPA 13
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sariaso 09 A x sariaso 01
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CRPA 19 A x Nongomsoba
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CRPA 19 A x CVS 532
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CRPA 19 A x Ouedzouré
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CRPA 19 A x CRPA B
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CRPA 19 A x S 29
Team work:
An important output of the project was to bring scientists from three
institutes to work together as a team, share knowledge, experiences,
materials and made visits to various experiments and explored new
research agenda. Experiments in Samanko were visited twice and Fred
Rattunde came twice to our station. Financial support from the
Rockefeller Foundation has increased the potential of each team and
helped speed up the work. Sharing of research activities among the team
members will continue in the future while new avenues on R lines will be
explored in order to increase the potential of the guinea hybrids.
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