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Young Man Lee(李榮萬),Hyong Ho Park(朴螢皓),Ke Hong Lee(李啓洪) 한국육종학회 1987 한국육종학회지 Vol.19 No.1
To select the herbicide-tolerant callus variants, callus from the brown rice grain of Kwangmyongbyo and Minehikari was inoculated to the culture media containing several different dosages of 2,4-D-Lq(40%), Butachlor-Ec(33%), and Oxadiazon-Ec(12%). The pattern of callus survival percent was different in the two varieties. The limit dose of callus survival was different between the two varieties in 2,4-D and Butachlor, but it was same in Oxadiazon. The callus survival percent was not increased by the succeeding callus culture of the stepwise higher dosage of 2,4-D and Oxadiazon.
Hyong Ho Park(朴瑩皓),Young Man Lee(李榮萬),Ja Ock Guh(具滋玉),Ke Hong Lee(李啓洪) 한국육종학회 1987 한국육종학회지 Vol.19 No.4
Several doses of butachlor ranged from 0 to 50 ai kg/ha were treated on the sandy soil and rice seedlings with 2~3 leaf stage were transplanted. There were no difference of injury by butachlor between 20℃ and 30℃. The optimum dose of butachlor to search the resistant varieties was estimated 30 to 40 ai kg/ha. Seventeen varieties among 392 rice varieties screened to butachlor were moderately resistant. The resistance of cultivar Kwanagbyeo and IR 667-98 were found to be controlled by a single recessive gene in the segregation of F₂ generation of cross combinations between the resistant and susceptible varieties.