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对云南省中部、中北部八十年代育成品种或生产上大面积推广品种的稻谷产量与各农艺性状之间进行了相关分析．结果表明：稻谷产量与全生育期、有效穗、穗实粒数、千粒重、株型、草重、谷重、生物产量、稻米品质呈显著至极显著的正相关，与剑叶角度呈显著的负相关．此外还观察了４个云南地方品种和７个日本品种的产量与农艺性状，日本品种矮杆、多穗、株型较好，云南地方品种高杆、大穗、株型较差，两类品种叶穗瘟都较重，不能直接用于生产．
Correlation analysis was made between the yield of rice and the agronomic traits of the bred varieties or the large-scale popularized varieties in the middle and northern parts of Yunnan Province. The results showed that there was a significant and significant positive correlation between rice yield and whole growth period, effective panicles, grains per spike, 1000-grain weight, plant type, grass weight, grain weight, biomass and rice quality, Related. In addition, the yield and agronomic traits of four Yunnan local cultivars and seven Japanese cultivars were also observed. Japanese cultivars were short, more spike and better plant type. Yunnan cultivars had higher stems, larger ears and lower plant type, Leaf blast are heavier and can not be used directly in the production.