volume 28 issue 2 (june 2005) : 149 - 151
HETEROSIS AND INBREEDING DEPRESSION IN lABlAB BEAN (lABlAB PURPUREUS VAR. TYPICUS)
1Centre for Plant Breeding and Genetics,
Tamil Nadu Agricultural University, Coimbatore - 641 003, India
Published In
Legume Research
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volume 28 issue 2 (june 2005) : 149 - 151
HETEROSIS AND INBREEDING DEPRESSION IN lABlAB BEAN (lABlAB PURPUREUS VAR. TYPICUS)
1Centre for Plant Breeding and Genetics,
Tamil Nadu Agricultural University, Coimbatore - 641 003, India
ABSTRACT
Twelve hybrids generated from a 4 x 4 diallel analysis involving CO 9, CO 12, CO 13 and COLT 22 as parents were utilized to estimate heterosis (over mid-parental value), inbreeding depression and inbreeding vigour for plant height, number of branches per plant, number of pods per plant, pod length, pod width, number of seeds per pod, 100 seed weight and seed yield per plant. Wide range of heterosis, inbreeding depression and inbreeding vigour was observed among hybrids for the different characters studied. The implications of heterosis, inbreeding depression and inbreeding vigour on formulating the breeding strategy was discussed and the best cross combinations that can be advanced to subsequent generations have been identified.
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REFERENCES
- Chikkadevaiah et ai. (1981). Indian J. Genet., 41: 366-373.
- Fasoulas. A. (1980). Principles and Methods of Plant Breeding Pub. No. 11. Dept. of Genetics and Plant Breeding, AristateUian University of Thessaloniki, Greece.
- Shanmugasundaram, P. and Sree Rangaswamy, S.R. (1995). Madras Agric. J., 82: 131-134.
- Tiwari. SK and Pandey. M.P (1987). J. Genet. Cytol., 15: 69-79.
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In this Article
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Published In
Legume Research