DEVELOPING HIGH YIELDING, LODGING TOLERANT BIROI TYPE RICE LINES THROUGH MUTATION BREEDING TECHNIQUE
Red rice is increasing its popularity for its functionality and healthy food value hence raised the market demand now-a-days. But the yield of this group of rice is very poor. Local rice Biroi having red pericarp, low yielding and lodging susceptible variety was irradiated with five (100, 150, 200, 250 & 300 Gy) doses of gamma ray. A total of 6 M3 plants were first selected from irradiated 1805 M2 plants. Two years replicated yield trial experiments were conducted in different locations of Bangladesh. Among them two mutants were selected for higher yield and moderate lodging tolerance. The selected mutants Biroi-250-2-2 and Biroi-250-2-3 showed 11% to 13% higher yield than their original parent which gave red pericarp. These two mutants might be a good breeding material for red rice, lodging resistance variety development program.
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