Genotype x environment interaction for fruit yield and component characters in okra [Abelmoschus esculentus (L.) Moench]
2017
Sunil Suresh Patil | Dipak T. Desai | Prashant P. Patil and | Sunayan R. Patel
With prime objective of developing season/region specific as well as stable hybrids of okra [Abelmoschus esculentus (L.) Moench], the present investigation was undertaken with thirty-seven entries viz., eight parents, twenty eight F1’s and one standard check GOH-2 over four season to obtain the information on stability parameters for fruit yield per plant and its components using stability analysis. The stability analysis exhibited significant differences among genotypes (G), environments (E) and G x E interaction for all characters except variance due to environment and G x E for ascorbic acid content indicating variable response of different genotypes for various traits under varied agro-climatic conditions. The significance of G x E (linear) and pooled deviation for fruit yield per plant and its most of the related traits suggested importance of both linear and non-linear components in building up total G x E interaction. Among the environment studied, E2 was found to be most favourable whereas E3 most unfavourable The parent JOL-09-8 was found to be average stable for fruit yield per plant and its attributes. Among the hybrids, eight were identified as stable over environments for fruit yield per plant and the best three among them were JOL-09-7 x JOL-09-8, JOL-09-7 x AOL-09-17 and JOL-09-7 x AOL-09-2.
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