Claim · model-written summary
Lines EC1, EC2 and PS6 and their descendants can be used as a breeding nucleus for genotypes planted up to early May.
- Taxon
- G. barbadensee0
- Material
- EC1, EC2, PS6e1
- Outcome
- breeding nucleuse1
- Qualifier
- planted up to early Maye1
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Verbatim
e0“testing cotton (G. barbadense) genotypes to endure the late planting conditions”
e1“the lines EC1, EC2, PS6 and their descendents can be utilized as a breeding nucleus to develop barbadense genotypes that can be planted up to early May”
Title
BREEDING POTENTIALITIES OF SHORT SEASON Barbadense COTTONS THROUGH LATE PLANTING
A. Abdalla Egyptian Journal of Agricultural Sciences /Egyptian Journal of Agricultural Sciences 2014. doi:10.21608/ejarc.2014.214035
Other claims from this paper (14)
- Observation Parental genotype G90 was identified as late-planting stress tolerant.
- Observation Genotypes G90, EC2, PS6 and PS7 were identified as high earliness index stress tolerant.
- Observation Crosses G86 x G75 and G90x G75 showed moderate late-planting stress tolerance.
- Observation Crosses G80 x PS7 and G80 x G83 showed moderate late-planting stress tolerance.
- Observation The moderately tolerant crosses showed the highest yield potential at the later planting date.
- Observation Crosses EC1 x PS6, G90 x PS7 and EC2 x PS6 were earlier, with the highest earliness index.
- Observation Crosses EC2 x G83 and G80 x PS6 were earlier, with the highest earliness index.
- Observation General combining ability variance was larger than specific combining ability variance only for first fruiting node and days to first flower and first boll under late planting.
- Observation For the remaining traits, specific combining ability variance was greater than general combining ability variance.
- Observation Additive and non-additive variation was significant for the traits expressed.
- Observation Degrees of dominance indicated partial dominance for all studied traits.
- Observation Broad-sense heritability was greater than narrow-sense heritability for all traits.
- Recommendation LP-tolerant genotypes should have a low "s" index and be shorter than current genotypes, with low first sympodial node, early boll set and high earliness index.
- Recommendation Backcrossing with selected genotypes followed by repeated selfing is a successful breeding strategy for late-planting tolerance.