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粳型两系杂交稻试验示范是云南省“九五”期间水稻高产攻关课题。粳型光敏两系杂交稻“云光６号”用光敏核不育Ｗ５０８８Ｓ×云恢１号组配选育而成，１９９７年省农科院提供良种在姚安县水稻主产区进行培育多蘖壮秧、单本稀植、配方平衡施肥、病虫保健防治等综合高产栽培试验示范，取得了每公顷增产稻谷１４４３ｋｇ，增１３．９６％，每公顷增纯收益１１９８．６５元的好效果。本试验对粳型光敏两系杂交稻“云光６号”品种特征特性及高产栽培技术进行探索，为中海拔（１８００～１９００ｍ）一季常规粳稻区推广应用提供科学依据。
Experimental demonstration of japonica two-line hybrid rice is a key issue of high yield rice in Yunnan Province during the Ninth Five-year Plan period. Japonica photosensitive two-line hybrid rice “Yun Guang 6” with photosensitive nuclear sterile W5088S × Yunhui 1 combination breeding, the Provincial Academy of Agricultural Sciences in 1997 to provide elite rice varieties in Yao’an County to cultivate more tiller Strong yield seedlings, single sparse planting, formula balanced fertilization, pest control and other comprehensive high-yielding cultivation demonstration, achieved per hectare yield 1443kg of rice, increased by 13.96%, 1198.65 yuan per hectare net benefit of good results. This experiment explores the characteristics and high-yielding cultivation techniques of Japonica type two-line hybrid rice “Yunguang 6”, and provides a scientific basis for the popularization and application of one-season conventional japonica rice in mid-altitude (1800-1900m).