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“京国系”稻种是保山地区农科所1970年在汉庄基点用“京引120”X“国庆20”杂交育成的水稻良种推广种植的姐妹系有“京国52—23”、“92”、“332”、“331”、“49—14”、“42—21”、“621”等,其中以适应性强、丰产性好、抗病的中熟型“京国92”最受农户欢迎,推广面积最多。至1983年全区已推广种植15万亩以上。是保山坝和施甸坝稻区推广的水稻骨干品种。1983年经省品种审定委员会审定,定名为
“Beijing State Department” rice varieties are the sister departments of “Guokang 52-23”, “Jingguang 52-23” and “Sikang” which were popularized by the Agricultural Science Institute of Baoshan Prefecture in 1970 at the base of Hanzhuang County with “Jingyin 120” X “National Day 20” 92 “,” 332 “,” 331 “,” 49-14 “,” 42-21 “,” 621 “, etc. Among them,” Jingguang 92 "with medium adaptability, high yield and disease resistance Welcome by farmers, to promote the area up. By 1983, the whole region has promoted the planting of more than 150,000 mu. Baoshan dam and Shidiaoshan rice paddy area to promote the key varieties. In 1983 by the provincial variety examination and approval committee, named