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中粳品种盐粳４号盐粳４号系江苏省盐城稻麦育种试验站用２０２２９与沈农１０７１杂交选育而成的高产、抗病新品种。１９９３年经江苏省农作物品种审定委员会审定，并在江苏、安徽等省大面积推广应用，截止１９９４年在省内外应用面积已达１３．３万ｈｍ２。该品种１９９...
The middle japonica rice variety Yanjing No.4 and Salt Japonica No.4 was a high yielding and disease resistant variety which was bred by 20229 and Shennong 1071 in Yancheng Rice and Wheat Breeding Experimental Station in Jiangsu Province. In 1993, it was examined and approved by Jiangsu Province Crop Variety Approval Committee and popularized in Jiangsu and Anhui provinces. By 1994, the area of application inside and outside the province reached 133,000 hm2. The variety 199 ...