Nature of genetic control of the length and number of elongated internodes in deepwater rice under non-flooded condition
1993
Dwivedi, J.L. (New Delhi Univ. of Agriculture and Technology, Ghaghraghat, Bahraich, Uttar Pradesh (India). Crop Research Station) | Senadhira, D.
Inheritance of total length and number of elongated internodes in some varieties of deepwater rice were studied in a 7 X 7 diallel (excluding reciprocals) by a procedure that does not require flooding. Estimates of combining ability and genetic component analysis showed highly significant additive and non-additive gene effects with preponderance of additive type. The high estimate of narrow sense heritability further supported the importance of additive gene effects. Jalmagna and IR40905-11-3-1-5-2-21 were not always the best combiners. The significance of the gene distribution indicated the presence of gene asymmetry. The average degree of dominance was 8.83 for both total length and number of elongated internodes indicating partial dominance
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