不同播期对玉米(强盛49)出苗速度及生育期的影响  

Effect on the Speed of Seedling and Growth Period of Qiangsheng49 in the Different Sowing Date

作　　者：武艳芍 郝建平[2] 

机构地区：[1]运城农业职业技术学院,运城044000 [2]山西农业大学,太谷030801

出　　处：《中国农学通报》2009年第4期119-121,共3页Chinese Agricultural Science Bulletin

摘　　要：试验系统研究了在不同播期,日均温对玉米(强盛49)的出苗速度及生育期的影响,研究结果表明:播期和玉米的出苗速度以及生育期之间有真实的线性回归关系:Y=9.8335*EXP(-0.019806*X),r=0.9118*;Y=131.0100*EXP(-0.003249*X),r=0.9884*;日均温和玉米的生育期也存在真实的线性关系:Y=464.2999-14.2397X,r=0.9849*。上述方程可以为选择适宜播期提供理论依据。The test had systematically studied that effect on speed of seeding and growth period ofQ iangsheng49 under the different sowing dates by daily mean temperature.The results show that：the sowingd ate has the relationship of liner regression both the growth period and Speed of seeding.They are Y=9.8335＊EXP（-0.019806＊X）,r=0.9118＊;Y=131.0100＊EXP（-0.003249＊X）,r=0.9884＊..And the daily meant emperature and the growth period have the relationship of liner regression：Y=464.2999-14.2397X,r=0.9849＊.All of the Equations will take more theoretical foundation for the suitable sowing date.

关 键 词：播期 日均温 出苗速度 生育期 

分 类 号：S513[农业科学—作物学]