Nature of Genetic Control of the Length and Number of Elongated Internodes in Deepwater Rice under Non-flooded Condition
J. L., Dwivedi and D., Senadhira (1993) Nature of Genetic Control of the Length and Number of Elongated Internodes in Deepwater Rice under Non-flooded Condition. Pertanika Journal of Tropical Agricultural Science, 16 (1). pp. 31-35. ISSN 0126-6128
Inheritance of total length and number of elongated internodes in some varities 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. lalmagna 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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