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合江19号是黑龙江省农科院水稻所于1966年以京引59号(虾夷)为母本,合江12号为父本杂交的F_3(合交6616-1),1969年再与京引58号(手稻)有性杂交育成。1978年经省农作物品种审定委员会审定推广。1985年
Hejiang 19 is the F_3 (Crosstalk 6616 - 1) of the hybrid rice of Heilongjiang Academy of Agricultural Sciences in 1966 with the parent of Jingyin No.59 Beijing cited 58 (hand rice) sexual hybrid bred. 1978 by the Provincial Crop Variety Approval Committee to promote. 1985