HETEROTIC POTENTIAL OF SINGLE CROSS HYBRIDS IN OKRA (Abelmoschus esculentus L. Moench) | Journal of

Okra (Abelmoschus esculentus L. Moench) is a specialised pod vegetable that Indian farmers raise for both domestic and export markets. Farmers and consumers all across the world, including India, have been drawn to okra because of its heterosis. F1 hybrids are currently being used to replace all local and open pollinated okra species farmed in the country. During summer 2013, at Vegetable Research Station, Rajendranagar, fifteen half-diallel crosses developed by crossing six newly developed inbred lines (RNOYR-14, RNOYR-15, RNOYR-16, RNOYR-17, RNOYR-18, and RNOYR-24) in half-diallel fashion with three standard checks ['No. 64' (Mahyco), 'Avantika' (228) (Bioseed), and ' The best three heterotic hybrids were RNOYR-17RNOYR-18, RNOYR-15RNOYR-16, and RNOYR-16RNOYR-17, with significantly positive average heterosis of 82.23, 79.21, and 64.42 percent, respectively, and heterobeltiosis of 71.43, 65.84, and 54.71 percent for marketable yield per plant. The topmost heterotic hybrid was RNOYR-15RNOYR-16, which showed significant standard heterosis of 20.57 percent over check 'No. 64' for marketable yield per plant, while the other two crosses, RNOYR-16RNOYR-17 and RNOYR-17RNOYR-18, showed positively non-significant standard heterosis over all three standard checks.

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