Line x tester analysis for yield and its contributing characters in field pea (Pisum sativum L.)
Soibam Tampha, M Samuel Jeberson, EV Diwakara Sastry, KS Shashidhar and Ph Ranjit Sharma
Seventeen genotypes including fourteen females (lines) and three males (testers) were crosses in line x tester mating design during Rabi 2016-2017 and forty-two hybrids along with seventeen parents were evaluated during Rabi 2017-2018. The ratio of variance due to general combining ability (GCA) and specific combining ability (SCA) was shown to be less than unity for all the characters studied indicating the predominant role of non-additive gene action for all the characters. Among the tester, Makhyatmubi was recorded as the best general combiner for plant height, number of pods per plant, pod length, number of seeds per pod, seed yield per plant, 100 seed weight and harvest index. Among the lines, HFP 9426 was shown to be good general combiner for pod length, seed yield per plant and harvest index while IPF 15-21 was shown to be good general combiner for days to 50% flowering and plant height. In case of specific combining ability, IPF 15-13 x Pant P 42 was good specific combiner for seed yield per plant and harvest index while HFP 1024 x Rachna was good specific combiner for days to 50% flowering. Out of forty-two cross combination, KPMR 939 x Makhyatmubi showed high heterosis over better and standard parent for seed yield per plant and harvest index. Some of the crosses were observed superior for the specific combining ability effects as well as for the standard heterosis viz., RFP 11-2 x Pant P 42, KPMR 939 x Makhyatmubi, HFP 9426 x Pant P 42 and Pant P 302 x Makhyatmubi for days to maturity, number of pods per plant, pod length and 100 seed weight respectively. These findings can be further utilized to develop and enhance the yield potential of field pea.
How to cite this article:
Soibam Tampha, M Samuel Jeberson, EV Diwakara Sastry, KS Shashidhar, Ph Ranjit Sharma. Line x tester analysis for yield and its contributing characters in field pea (<em>Pisum sativum</em> L.). Pharma Innovation 2018;7(9):104-109.