The effectiveness of early generation (F3) yield testing and the single seed descent procedures in two cowpea (Vigna unguiculata (L.) Walp.) crosses

Ntare, B. R.; Aken'ova, M. E.; Redden, R. J.; Singh, B.B.

doi:10.1007/bf00021155

Cited by 12 publications

(7 citation statements)

References 13 publications

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“…The average effect of the parental lines and the additive effects were the most important components, suggesting that the increase in mineral values can be obtained through methods of genealogical improvement and "single pod descent", the most commonly applied breeding methods in autogamous plants such as cowpea (Ntare et al, 1984). The crossing of divergent parents with high mineral content is also recommended because the average effect of the parental lines contributes significantly to the gene expression models.…”

Section: Discussionmentioning

confidence: 99%

Genetic control and transgressive segregation of zinc, iron, potassium, phosphorus, calcium, and sodium accumulation in cowpea (Vigna unguiculata) seeds

Santos¹,

Boiteux²

2015

Genet. Mol. Res.

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Section: Discussionmentioning

confidence: 99%

Genetic control and transgressive segregation of zinc, iron, potassium, phosphorus, calcium, and sodium accumulation in cowpea (Vigna unguiculata) seeds

Santos¹,

Boiteux²

2015

Genet. Mol. Res.

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“…Therefore, in general, all three breeding methods are similarly effective in cowpea improvement. Ntare et al (1984), using two crosses of cowpea early generation selection at F3 level, reported that the PM, SSD and MB were comparable in cowpea improvement. They also reported that the grain yields of lines derived by the SSD procedure were as good as those derived from early selection.…”

Section: Comparison Among Breeding Methodsmentioning

confidence: 99%

Performance of different breeding methods in cowpea (Vigna unguiculata (L). Walp) improvement programmes

Millawithanachchi¹,

Sumanasinghe²,

Bentota³

et al. 2015

Trop. Agric. Res.

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Effectiveness of different breeding methods in crop improvement is important to the breeders of a particular crop. .Hence, the effectiveness of three breeding methods namely, pedigree, single seed descent and modified bulk were evaluated using two cowpea [The ten best lines from each method were selected at F5 generation and advanced to F6 generation. The selected 30 lines from the three breeding methods, two parents and three standard checks were tested for each cross in a Randomized Complete Block Design during 2013 Yala season. Data were recorded on plant height at maturity, number of peduncles per plant, number of pods per plant, number of seeds per pod, average length of pod, hundred seed weight and yield per plant in F4, F5 and F6 generations. Lines/methods were found to be significant (p<0.05) for all the characteristics studied at F6 generation, except the number of pods per plant and pod length in CP 19 x Waruni and seed per pod in CP 20 x Cp 22. The mean sum of squares of days to maturity in CP 19 x Waruni and seed per pod in both crosses were found to be significantly different among three breeding methods but for other characteristics, methods were found to be not significantly different (p<0.05). The pods per plant and hundred seed weight recorded attractive narrow sense heritability values and significant intergeneration correlations. Positive phenotypic correlations were recorded between the seed yield and pods per plant in F4, F5 and F6 generations. Accordingly, in cowpea improvement, comparable results could be obtained among pedigree, single seed descent and modified bulk methods. In addition, indirect selection for higher number of pods per plant and hundred seed weight could increase seed yield.

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“…Различия по урожайности между линиями F3 сохраняются и в более поздних поколениях (r = 0,51 -0,85). (Ntare et al, 1984) Косвенный отбор по урожайности на основе биомассы в совокупности с Кхоз был более эффективен в увеличении урожайности овса, чем прямой отбор по урожайности. (Helsel, 1985) Наибольшее количество самых урожайных линий F4 было получено в варианте визуального отбора и в варианте отбора по массе 1000 зёрен в сравнении со случайным отбором.…”

Section: таблица 1 главные выводы работ по прямому или косвенному отunclassified

EFFICIENCY OF SELECTION IN EARLY GENERATIONS OF CROP HYBRIDS FOR HIGH YIELD AND YIELD COMPONENTS (a review)

Лепехов¹

2018

POABG&B

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The effectiveness of early generation (F3) yield testing and the single seed descent procedures in two cowpea (Vigna unguiculata (L.) Walp.) crosses

Cited by 12 publications

References 13 publications

Genetic control and transgressive segregation of zinc, iron, potassium, phosphorus, calcium, and sodium accumulation in cowpea (Vigna unguiculata) seeds

Genetic control and transgressive segregation of zinc, iron, potassium, phosphorus, calcium, and sodium accumulation in cowpea (Vigna unguiculata) seeds

Performance of different breeding methods in cowpea (Vigna unguiculata (L). Walp) improvement programmes

EFFICIENCY OF SELECTION IN EARLY GENERATIONS OF CROP HYBRIDS FOR HIGH YIELD AND YIELD COMPONENTS (a review)

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