STUDY OF INHERITANCE FOR YIELD AND SOME TRAITS IN TWO BREAD WHEAT CROSSES | ||||
| Fayoum Journal of Agricultural Research and Development | ||||
| Article 4, Volume 31, Issue 1, January 2017, Page 50-57 PDF (354.26 K) | ||||
| Document Type: Research articles. | ||||
| DOI: 10.21608/fjard.2017.191229 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Mohamed M. M.; S. T.I. El-Sherif; A. I. Yahya | ||||
| Wheat Research Department, Field Crops Research Institute, ARC. | ||||
| Abstract | ||||
| The present investigation was carried out at Sids Agricultural Research Station, Agricultural Research center (ARC.), Egypt, during three successive seasons of 2013-2014, 2014-2015 and 2015/2016. The objective of this study to estimate of mean performances, gene action, heterosis and inbreeding depression for grain yield and its components and characters. Six populations (P1, P2, F1, F2, BC1 and BC2) for two crosses were used in this study coming from (P1x P2) and (P3 x P4). The estimates of the six parameters, i.e. additive (d), dominance (h), additive x additive (i), additive x dominance (j) and dominance x dominance (I) and means (m), the mean effects were highly significant for all studied traits in the two crosses, indicating that these traits are quantitatively inherited. For heterosis, highly significant heterotic effect positive was found between crosses for 1000 kernels weight in two crosses and number of grains per spike in second cross. On the other hand inbreeding depression showed highly significant negative with first cross and positive with second cross. In general first cross was highly significant negative, but in second cross grain yield per plant, 1000 kernels weight and number of grains per spike was non-significant. In two crosses, regarding potence ratio value were more than unity for all traits under study except number of grains per spike with first cross and days to heading in second cross. | ||||
| Keywords | ||||
| Wheat; Gene Effects; Heterosis; Inbreeding depression; Potence ratio | ||||
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