Abstract

Two nonscented varieties, ADT38 and ADT39, were crossed with a scented variety, Badshabhog, to study the inheritance of aroma in rice. The parents, F1 and F2 were grown in Nov 1992. For each cross, 2 g of leaf blades from randomly selected parent and F1 plants and 200 F2 plants were soaked in 10 ml of 1.7 percent KOH solution in test tubes and evaluated for scent after 10 min by smelling the contents. All F1 plants were nonaromatic, indicating the recessive nature of the gene controlling aroma. A 15 non-aromatic: 1 aromatic segregation occurred for F2 plants in both crosses, suggesting that two recessive genes control aroma in Badshabhog. Pedigree breeding with a larger population for F2 selection is suggested for introducing scent into nonscented varieties

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