caa a22 4500 477135161 CHVBK 20180405111715.0 cr unu---uuuuu 170330e19970701xx s 000 0 eng 10.1023/A:1002905213073 doi (NATIONALLICENCE)springer-10.1023/A:1002905213073 Genetic analysis of yield and its components in vegetable cowpea (Vigna unguiculata L. Walp) [Elektronische Daten] [Pathmanathan Umaharan, Rasiah Ariyanayagam, Syed Haque] The F2 and backcrosses of a cross between two vegetable cowpea (Vigna unguiculata L. Walp) varieties with contrasting characteristics were evaluated for pod yield and its components, with the aim of understanding the genetic basis of these characteristics. A four-parameter model incorporating the additive, dominance and additive × additive genetic components fitted the data for pod yield and clusters per plant. The additive and additive × additive effects were positive and were larger than the dominance component. The relatively large additive and the predominantly positive dominant effects suggest that selection would be effective. Pod weight had high broad (84%) and narrow sense heritability (75%) and can be effectively selected for in the early generations. The study suggested that vegetable cowpea improvement programs should focus on selecting for clusters per plant and average pod weight in the early generations, while selection for dry pod yield could be delayed to later generations. It was concluded that pods per plant may be a useful selection criterion in multi-location trials aimed at selecting for stability of yield. Kluwer Academic Publishers, 1997 clusters nationallicence inheritance nationallicence pod weight nationallicence selection nationallicence yield components nationallicence Vigna unguiculata nationallicence vegetable cowpea nationallicence genetics nationallicence Umaharan Pathmanathan Department of Plant Science, The University of the West Indies, St. Augustine, Republic of Trinidad and Tobago aut Ariyanayagam Rasiah Department of Plant Science, The University of the West Indies, St. Augustine, Republic of Trinidad and Tobago aut Haque Syed Department of Plant Science, The University of the West Indies, St. Augustine, Republic of Trinidad and Tobago aut Euphytica Kluwer Academic Publishers 96/2(1997-07-01), 207-213 0014-2336 96:2<207 1997 96 10681 https://doi.org/10.1023/A:1002905213073 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002905213073 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Umaharan Pathmanathan Department of Plant Science, The University of the West Indies, St. Augustine, Republic of Trinidad and Tobago aut NATIONALLICENCE 700 1- Ariyanayagam Rasiah Department of Plant Science, The University of the West Indies, St. Augustine, Republic of Trinidad and Tobago aut NATIONALLICENCE 700 1- Haque Syed Department of Plant Science, The University of the West Indies, St. Augustine, Republic of Trinidad and Tobago aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 96/2(1997-07-01), 207-213 0014-2336 96:2<207 1997 96 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer