Abstract
Lines of two generations (F3 and F4) from 15 crosses were screened for two successive seasons (2004 and 2005) for their reaction to Fusarium wilt disease under natural infection by Fusarium oxysporum f.sp. sesami. There was sufficient variability among all crosses and some lines could be valuable for further breeding programs for wilt disease resistance. Offspring of the crosses P1 Ă P6, P2 Ă P4 and P3 Ă P6 seem to be stable in their reaction to the disease in the years of evaluation, though with some segregation from one generation to another. The crosses P1 Ă P5, P2 Ă P6, P3 Ă P4 and P3 Ă P6 showed a resistant reaction through both generations as well as both seasons. They might be helpful and utilised for large scale cultivation or/and in hybridisation programs to develop resistant varieties with good yield potential. Heritability estimates were very high (more than 95%) in both generations during the two seasons, except for seed yield/plant in the F3 in the first season. This indicated that selection for both Fusarium wilt resistance and seed yield from these lines could be feasible and lead to resistant cultivars with seed yield potential. The results showed highly significant and positive correlations between lower infection in the F4's and in F3's through the two seasons. The highest significant correlation of the evaluated traits allowed the selection of some lines to be used in breeding programs. Also, highly significant positive correlations were detected between seed yield/plot of the F4's in 2004 and the seed yield/plot of F4's in 2005, but did not reach the significant level in the F3's.
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Claims 8
Claim · model-written summary
Sesame crosses showed sufficient variability in reaction to Fusarium wilt
- Taxon
- sesame
Sesamum indicumt0 - Outcome
- variability among all crossese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame crosses under field conditions”
e1“There was sufficient variability among all crosses and some lines could be valuable for further breeding programs for wilt disease resistance”
Claim · model-written summary
Heritability estimates for the traits were more than 95% in both generations during two seasons
- Taxon
- sesameSesamum indicumt0
- Outcome
- Heritability estimatese4
- Value
- more than 95%e4
- Qualifier
- except for seed yield/plant in the F3 in the first seasone4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame crosses under field conditions”
e4“Heritability estimates were very high (more than 95%) in both generations during the two seasons, except for seed yield/plant in the F3 in the first season”
Claim · model-written summary
Lower infection in F4 and F3 lines was positively and significantly correlated across two seasons
- Taxon
- sesameSesamum indicumt0
- Material
- F4e6
- Outcome
- lower infectione6
- Direction
- positivee6
- Qualifier
- through the two seasonse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame crosses under field conditions”
e6“The results showed highly significant and positive correlations between lower infection in the F4's and in F3's through the two seasons”
Claim · model-written summary
Seed yield per plot of F4 lines was positively and significantly correlated between 2004 and 2005
- Taxon
- sesameSesamum indicumt0
- Material
- F4e7
- Outcome
- seed yield/plote7
- Direction
- positivee7
- Qualifier
- of the F4's in 2004e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame crosses under field conditions”
e7“Also, highly significant positive correlations were detected between seed yield/plot of the F4's in 2004 and the seed yield/plot of F4's in 2005, but did not reach the significant level in the F3's”
Claim · model-written summary
Seed yield per plot in F3 lines did not reach significant correlation between seasons
- Taxon
- sesameSesamum indicumt0
- Material
- F3e7
- Outcome
- seed yield/plote7
- Qualifier
- did not reach the significant levele7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame crosses under field conditions”
e7“Also, highly significant positive correlations were detected between seed yield/plot of the F4's in 2004 and the seed yield/plot of F4's in 2005, but did not reach the significant level in the F3's”
Claim · model-written summary
Selecting for both Fusarium wilt resistance and seed yield from these lines could be feasible
- Taxon
- sesameSesamum indicumt0
- Outcome
- selection for both Fusarium wilt resistance and seed yielde5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame crosses under field conditions”
e5“This indicated that selection for both Fusarium wilt resistance and seed yield from these lines could be feasible and lead to resistant cultivars with seed yield potential”
Claim · model-written summary
Some sesame lines could be valuable for further breeding programs for wilt resistance
- Taxon
- sesameSesamum indicumt0
- Outcome
- valuable for further breeding programse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame crosses under field conditions”
e1“There was sufficient variability among all crosses and some lines could be valuable for further breeding programs for wilt disease resistance”
Claim · model-written summary
Selection of some lines for breeding programs was enabled by the highest significant correlation among the evaluated traits
- Taxon
- sesameSesamum indicumt0
- Outcome
- selection of some lines to be used in breeding programse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame crosses under field conditions”
e2“The highest significant correlation of the evaluated traits allowed the selection of some lines to be used in breeding programs”