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Agricultural Science Digest, volume 31 issue 1 (march 2011) : 1 - 7

STUDY OF HETEROSIS IN TOP CROSS DERIVATIVES OF MAIZE (ZEA MAYS L.)

J.M. Shete, D.B. Patel, M.P. Patel*, R.A. Gami, C.G. Patel
1Directorate Research and Dean P.G. Studies office S.D. Agriculture University, Sardarkrushinagar - 385 506, India.

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Cite article:- Shete J.M., Patel D.B., Patel* M.P., Gami R.A., Patel C.G. (2024). STUDY OF HETEROSIS IN TOP CROSS DERIVATIVES OF MAIZE (ZEA MAYS L.). Agricultural Science Digest. 31(1): 1 - 7. doi: .

ABSTRACT

Commercial exploitation of heterosis is feasible in maize due to floral morphology and high rate of cross pollination. Heterosis was estimated in 21 top cross derivates .The hybrid CML-269 X NM and CML-251 X NM exhibited significant and positive heterosis for grain yield over mid parent, better parent and checks, whereas, GWL-7 X NM, CML-286 X NM and CML-292 X NM showed significant heterosis for grain yield over mid parent, better parent and economic heterosis over check Narmada Moti. The desirable heterosis was also observed in the cross combinations of CML-269 X NM for days to 50 % tasselling, days to 50 % silking, ear height, days to 75 % maturity , ear length, ear girth, number of grain row per ear, number of grains per row, shelling percentage, 100-kernel weight and protein content.

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