New Zealand Journal of Crop and Horticultural Science abstracts

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Combining ability analysis for selected green pod yield components of vegetable soybean genotypes (Glycine max)

T. Mebrahtu

Agricultural Research Station
Virginia State University
P. O. Box 9061
Petersburg, VA 23806
United States
email: tmebraht@vsu.edu

T. E. Devine

Sustainable Agricultural Systems Laboratory
Animal and Natural Resources Institute
USDA-ARS, Bldg. 001, BARC-West
10300 Baltimore Ave
Beltsville, MD 20705
United States
email: devineT@ba.ars.usda.gov

Abstract Few studies have evaluated vegetable soybean (Glycine max) for green pod yield components. Information on combining ability and the type of gene action that governs the inheritance of economically important quantitative characters can help breeders to select suitable parents and devise an appropriate breeding strategy. Ten vegetable soybean accessions were crossed in a complete diallel mating design. This study showed that estimates of both the combining ability (general and specific), and reciprocal variances were significant for plant height, hundred pod weight, and pod dimensions (pod length, pod width, and pod thickness). The performances of the parents for the green pod yield components studied were highly associated with their general combining ability effects. Four parents—‘Kanrich’, ‘Pella’, V81–1603, and PI 399055, were good general combiners for hundred pod weight and thus could be used in breeding programmes to develop genotypes with large pod size.

Keywords vegetable soybean; Glycine max; accession; combining ability; diallel; edamame; green yield components; pod dimensions

New Zealand Journal of Crop and Horticultural Science, 2008, Vol. 36: 97–105
0014–0671/08/3602–0097      © The Royal Society of New Zealand 2008
Contribution from Agricultural Research Station of Virginia State University Journal Series no. 263. The use of any trade names and/or vendors does not imply approval to the exclusion of the other products or vendors that may also be suitable.
H07085; Online publication date 30 May 2008
Received 2 August 2007; accepted 22 April 2008

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