Inheritance of seed size in cowpea (Vigna unguiculata (L.) Walp.)

Drabo, I and Redden, R and Smithson, J B and Aggarwal, V D (1984) Inheritance of seed size in cowpea (Vigna unguiculata (L.) Walp.). Euphytica, 33 (03). pp. 929-934. ISSN 0014-2336

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Abstract

The inheritance of seed weight in cowpea was examined in a field planting of the parents, reciprocal F,s, F2 s and backcrosses to both parents of a cross between TVu 1977-OD (small seeded) and ACC 70002 (large) . Seed weight was inherited quantitatively and small seed was partially domiminant to large seed size . Gene action was predominantly additive but dominance and additive x additive epistatic effects were also significant. Broad and narrow sense heritabilities were 85 .1 ± 5 .3% and 75 .4 ± 18 .6% respectively . The minimum number of loci involved in the inheritance of seed size was eight, and each gene pair contributed up to 1 .02 g increase to seed weight . The estimate of genetic advance from F 2 to F 3 generations with 5% selection intensity was 3 .58 g .

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Vigna unguiculata, Cowpea, Seed size, Genetics, Additive, Dominance, Heritability
Subjects:	Others > Legume Crops
Depositing User:	Mr Ramesh K
Date Deposited:	13 Sep 2016 09:36
Last Modified:	24 May 2017 05:23
URI:	http://oar.icrisat.org/id/eprint/9647
Official URL:	http://dx.doi.org/10.1007/BF00021923
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Google Scholar

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