中国农业大学学报2011，Vol.16Issue(5)：32-38,7.
基于Logistic模型的玉米干物质积累过程对产量影响研究
Study on the effect of dry matter accumulation process on maize yield based on Logistic mode
摘要
Abstract
Crop yields are closely related to dry matter accumulation process,which can be affected by different culture measures and environment remarkably, consequently the yields. To analysis the effect of dry matter accumulation process on maize yield,field experiments with four treatments, namely, areas, years, culture measures were performed from 2007 to 2009. Regression equation between yield per plant and it＇s parameter for Logistic model of Zhengdan958 and Zhongnongda 4 was established. Correlation coefficient for Zhengdan958 and Zhongnongda4 were 0. 863 and 0. 993 respectively,and standard errors were 0. 018 and 0. 004 respectively. To validate the above model, t-test distinguish level of Zhengdan958 and Zhongnognda 4 from independent experiment were 0. 900 and 0. 379 respectively. No obvious difference was observed between model＇s simulated and observed values. RESM values for Zhengdan985 and Zhongnongda4 were 0. 014 and 0. 020 respectively. The results showed that maize yield correlated with dry matter accumulation process for certain degree; different growing process resulted in different parameter of Logistic model. Furthermore,the crop yield also correlated with parameter of Logistic model; different varieties possessed their own model. Information obtained from the current study can provide some theory basis for maize industry.关键词
玉米/干物质/Logistic方程/模型参数Key words
maize/dry matter/Logistic function/model parameter分类
农业科技引用本文复制引用
乔嘉,朱金城,赵姣,郑志芳,王璞,廖树华..基于Logistic模型的玉米干物质积累过程对产量影响研究[J].中国农业大学学报,2011,16(5):32-38,7.基金项目
国家支撑计划项目（2006BAD29804) （）
国家“863”计划项目（2006AA10A303-1) （）
