Analysis of Heterosis and Heterobeltiosis for Earliness, Yield and Its Contributing Traits in Okra

Thirty-six F1 hybrids were create from nine lines and four testers through line x exploratory mating design, these F1’s in addition to 13 parents and 1 commercial check (Punjab-8) were judged to study the magnitude and route of heterosis for growth and precedence over various figures in okra. Heterosis was studied to equate traits to a degree days to 50% flowering, days to picking, plant height, number of internodes, number of arms per plant, fruit distance at commercial adulthood and final adulthood, number of fruits per plant, number of sources per fruit, 100 seed burden, fruit pressure, and yield per plant. Significant heterosis was found over better person (Heterobeltiosis), mid person and commercial checks for all the characteristics studied in desirable route. The present study showed that the crosses L3 x T2 (19.04, 15.41, 8.28), L5 x T2 (41.90, 14.55, 7.47), L8 x T3 (23.75, 6.48, 8.46) written significant beneficial heterosis for yield per plant over mid person, better parent and over standard check. Same composite L3 x T2 exhibited negative and well significant heterosis for days to 50% flowering and days to first picking (-11.65,-12.00, -8.33) and (-11.79, -12.12, -15.94) individually that are earliness individuality over mid person, better parent and standard check. These hybrids can further be tested over miscellaneous locations before release for commercial nurture. High estimates of heterosis obtained in mixture combinations disclosed considerable hereditary divergence between the parental lines and reveals good outlook for commercial taking advantage of heterosis in okra.

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