威优64是早、晚稻兼用籼型杂交水稻的高产优良新组合。适应性广,抗性强,产量高,米质优良。作早稻栽全生育期120天左右,作晚稻栽全生育期110天左右,与威优35的生育期差不多。广昌县自1984年开始推广,已栽种了二年,早、晚稻一般亩产900多斤,高的达1,200斤以上,深受群众欢迎。为了种好威优64,我们1985年在苦竹镇大陵大队早稻用威优64和威优35进行对比试验,在 Weiyou 64 is a new high yield and good combination of indica hybrid rice with early and late rice. Wide adaptability, resistance, high yield, good quality rice. For early rice planted the whole growth period of about 120 days, planted late rice 110 days or so the whole growth period, and Wei You 35 almost the same period of growth. Since its introduction in 1984, Guangchang County has been planted for two years. Morning and late rice generally yield over 900 kilos per mu and over 1,200 kilos, which is well received by the public. In order to plant Weiyou 64, we conducted a comparative test in early 1985 on Weiyou 64 and Weiyou 35 in the Daling Brigade,