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由江西省农科院水稻所周炳炎同志自1977年起从汕优2号中进行分离选择,系统育成了稳产高产、耐寒耐旱、抗病虫能力强的晚籼新品种4434。1983、1984两年通过省区试,分别平均亩产415.3、387.4公斤,比对照754分别增产5.6％、10.1％,居参试品种中的二、三位。1987年底经省科委委托农牧渔业厅组织进行成果鉴定,认为该品种突出的优点是:对我省稻瘟病ZB,以及ZC、ZD、ZA等种
From the Institute of Jiangxi Provincial Academy of Agricultural Sciences, Comrade Zhou Bingyan since 1977 from Shanyou 2 in the separation and selection, the system bred into a stable and high yield, drought tolerance, resistance to pests and strong late indica varieties 4434.1983,1984 two The year passed the provincial test, respectively, average per-mu yield of 415.3,387.4 kg, an increase of 5.6%, respectively, compared with the control 754, 10.1%, ranking two or three of the varieties tested. By the end of 1987 by the Commission of Science and Technology commissioned by the Department of Agriculture, Animal Husbandry and Fisheries Office for the identification of the results that the outstanding advantages of the species is: rice blast province ZB, and ZC, ZD, ZA and other species