Mhasal, G.S. and Marawar, M.W. and Solanke, A.C. and Tayade, S.D. (2015) Heterosis and combining ability studies in medium duration pigeonpea F1 hybrids. Journal of Agricultural Research, 53 (1). pp. 11-22.
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Abstract
Present study was carried out during kharif 2012-13 in the Department of Agricultural Botany, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola Maharashtra, India. The objective was to estimate the extent of heterosis and combining ability effects among parents and hybrids and to find out promising cross combinations for grain yield and its components. The experimental material comprised 11 new genotypes; six females (CMS lines viz., AKCMS-81A, AKCMS-82-2A, AKCMS-83A, AKCMS-12A, AKCMS-93A and ICPA-2047A) and five males (testers) viz., AKPR-303, AKPR-324, AKPR-364, AKPR-372, AKPR-057 and their 30 crosses along with two checks PKV-TARA and ASHA. Layout used was RCBD with three replications. Among female parents, ICPA-2047A recorded significant general combining ability (GCA) effect for maximum six characters such as grain yield per plant, plant height, number of clusters, number of seeds per pod, 100 seed weight and days to 50 percent flowering. The male parent AKPR-324 achieved the highest GCA effect for plant height, number of clusters, 100 seed weight and grain yield per plant. The highest useful heterosis in desirable direction was recorded for days to 50 percent flowering in AKCMS-12A × AKPR-364, for days to maturity in ICPA-2047A × AKPR-303, for plant height in AKCMS-93A × AKPR-324, for number of branches in AKCMS-93A x AKPR-364, for number of clusters in ICPA-2047A × AKPR-372. The cross AKCMS-12A × AKPR-372 showed highest positive and significant useful heterosis for number of pods. The cross ICPA-2047A × AKPR-324 exhibited highest useful heterosis simultaneously for two characters viz., number of seeds per pod and grain yield per plant. The cross ICPA-2047A × AKPR-324 depicted high mean performance (33.67), high magnitude of useful heterosis, positive specific combining ability (SCA) effect and both the parents involved revealed high GCA effects. Another cross ICPA-2047A × AKPR-372 revealed highest mean performance alongwith highest magnitude of useful heterosis and highest SCA effects while the significant variances for male and female parents were observed for days to 50 percent flowering, days to maturity, plant height, number of branches and 100 seed weight. One of the parents i.e. AKPR-372; although low combiner for grain yield yet it exhibited good combining ability for number of branches, number of pods, number of seeds/ pod and days to 50% flowering. This cross may be employed to exploit non-additive component along with high heterotic response.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Cajanus Cajan L.; Pigeonpea; Heterosis; Combining ability; Line x tester analysis; Cytoplasmic male sterility, India. |
| Author Affiliation: | University Department of Agricultural Botany Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola-444104 Maharashtra, India. |
| Subjects: | Crop Improvement |
| Divisions: | Pigeonpea |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 27 Aug 2015 08:59 |
| Last Modified: | 27 Aug 2015 08:59 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/13770 |
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