摘要
在2004-2005年对湖南省华容县、安乡县、大通湖区和澧县的杂交抗虫棉生长状况进行大田调查的基础上,系统分析了不同生长发育类型棉花果枝产量构成的特点和产量贡献率,构建了基于不同生长发育类型的棉花果枝产量贡献率分布的指数递减曲线、右偏态、左偏态和正态单峰曲线,以及双峰曲线和波动曲线6个模拟模型。2006-2009年在四县以及湖南农业大学进行了模型校验的小区试验,根据多年多点小区试验数据对不同果枝产量贡献率分布的模拟模型进行了校正和检验,使得模型与生长类型匹配较好,各模型的模拟值与观测值的符合度良好,RMSE值较小,在0.3419～0.7092之间,模型具有较好的精准性和适应性。
Field investigation was conducted in Huarong County, Anxiang County, Datonghu District and Li County of Hunan Province from 2004 to 2005 to analyze the characteristic of yield constitution and the percentage of total seed-cotton yield by fruiting branch according to different types of growth and development of transgenic hybrid cotton. The different growth and development types were studied and classified into normal type, early-development and early-aging, early-development and early-maturing, late-development and late-maturing, two phase-growth. Six simulation models of percentage of total yield by fruiting branch corresponding to the different growth type were developed. Six simulation models were exponential-decrease, positive-skewness, negative-skewness, normal-distribution, double-peak and fluctuation-distribution, respectively. Test plots were conducted to study different growth and development types in the four counties and Hunan Agricultural University from 2006 to 2009. Models were validated by the data collected from test plots in different survey sites in different years. Models matched the different growth and development types well, and the simulated values agreed well with the observed values.The result showed that the model was accurate and applicable under different conditions, with the root mean square errors （RMSE） between simulated and observed values of the six simulation models varied from 0.3419 to 0.7092.
出处
《棉花学报》
CSCD
北大核心
2010年第4期326-332,共7页
Cotton Science
基金
863计划(2003AA0110010138)
棉花栽培生理生态行业计划(南京)
关键词
棉花
生长发育类型
果枝
产量贡献率
模拟模型
cotton
growth type
fruiting branch
percentage of total yield
simulation model
