International Journal of Chemical Studies
Vol. 6, Issue 2 (2018)
Diallel crossing for assessment of yield and its components in sesame (Sesamum indicum L.)
Author(s): RS Raikwar
Abstract: The experiment was conducted at the AICRP, JNKVV, College of Agriculture Tikamgarh, Madhya Pradesh in kharif 2015-16. The crosses were attempted between parents in Diallel mating design (without reciprocal). The genetic variance of combining ability was separated into general (GCA) and specific (SCA) combining ability variance components. The results indicated significant differences among the parents for general combining ability (gca) and crosses for specific combining ability (sca) for all the characters studied except for capsule length (cm) in F1’s. While parent v/s crosses for all the characters had adequate genetic variability. However, the sca component of variance was predominant indicating the predominance of non additive gene effects for the traits studied. Among the parents ES-230 and SI-1147 were good general combiners for seed yield per plant (g) and its attributing traits. Estimates of gca effects in parents and F2’s indicated that ES-230 and SI-775 were good general combiner for seed yield per plant (g) and its attributing traits. The estimates of specific combining ability revealed that the crosses ES-230 x NIC-8401, IS-1162 x NIC-8401, IS-1162 x MT-75, SI-1147 x SI-775, SI775 x DS-10 and SI-775 x MT-75 were the best specific combiner for seed yield per plant. The F1’s hybrids showing high sca and parents having good gca will be included into sesame improvement breeding programme for further improvement of seed yield in sesame.
Pages: 179-183 | 750 Views 8 Downloads
How to cite this article:
RS Raikwar. Diallel crossing for assessment of yield and its components in sesame (Sesamum indicum L.). Int J Chem Stud 2018;6(2):179-183.