Singh, R.S. and Singh, M.N. (2016) Heterosis and Inbreeding Depression for Yield and Yield Traits in Pigeonpea (Cajanus cajan L.). Environment & Ecology, 34 (1A). pp. 395-399.
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Abstract
Twelve hybrids having diverse background were developed to understand the heterosis and inbreeding depression in late maturity groups of pigeonpea (Cajanus cajan L.). More than 100% significant economic heterosis were revealed in crosses, MAL-17 × NDA 4906 (266.32%), BHUA 96-13-3 × NDA 49-6 (249.98%), BHUA 96-13-3 × MAL-19 (190.41%), MAL-17 × NDA 99-1 (136.27%) and MAL-17 × MAL- 19 (103.46%) for seed yield per plant. The crosses, MAL-17 × NDA 49-6 and BHUA 96-13-3 × NDA 49-6, showed better performance in F1, low/even negative inbreeding depression in F2 and involved parents with high per se performance. Two crosses namely, BHUA 96-13-3 × MAL-19 and BHUA 96-21-4 × NDA 99-1 showing higher magnitude of heterosis were also associated with higher inbreeding depression. The cross, MAL-17 × NDA 49-6 (266.32%) showed maximum estimates of yield heterosis, also exhibited significant heterosis for days to 50% flowering, number of primary and secondary branches, pods per plant, pod length and harvest index.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Pigeonpea, Crosses, Heterosis, Inbreeding depression |
| Subjects: | Crop Improvement |
| Divisions: | Pigeonpea |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 07 Jan 2016 05:30 |
| Last Modified: | 07 Jan 2016 05:30 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/14149 |
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