Each parent, P1 and P2, ten F1 hybrids among 5 parents, eight F2, B1 (F1 × P1), and B2 (F1 × P2were evaluated for spikelet fertility related to cold tolerance in cold-water irrigated plot. Heterosis for spikelet fertility varied from8.6% to 60.5% with a m
The mode of inheritance and allelic relationship of resistance genes in a Korean landrace, Guju and a Korean weedy rice, Geumleungaengmi 33 were studied using Korean isolate (HB9101, race K1) of Xanthomonas oryzae pv. oryzae. The analysis of F1