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Prof. Salah Shafshak :: Publications:

Title:
BREEDING STUDIES ON MAIZE II- YIELD AND SOME OF ITS COMPONENTS
Authors: Safshak, S.E.; Shokr El Sayed, A.; El Hosary A.A. and Sedhom S.A.
Year: 1986
Keywords: Not Available
Journal: Not Available
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Not Available
Local/International: Local
Paper Link: Not Available
Full paper Salah Shafshak_Doc10.pdf
Supplementary materials Not Available
Abstract:

Highly significant negative heterotic effect was obtai ned for date of silking in the four crosses. Positive highly sighificant heterotic effects were detected for ear length, number of rows per ear and kernels per row, 100 kernels weight and grain yield per plant in foْr crosses and ear diameter in three crosses. Inbreeding depression was negative and highly significant for silking date in the four crosses. Eighly significant positive values were obtained for the remain cases except number of rows per ear in the four crosses. Overdominance towards the lower parent was detected for silking date, whereas overdominance towards the higher parent was detected for all otehr traits studied. Epistasis tests showed significant values of E1 and E2 for all traits at least in one cross. Dominance effects were higher in iagnitude than additive gene effects in the performative gene effects had the major role of the inheritance of such traits in four crosses. Low to moderate values of herita bility were obtained for most traits. High to moderate values of predicted genetic gain for most traits studieم. were detected.

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