新疆农业科学2017，Vol.54Issue(12)：2182-2189,8.DOI:10.6048/j.issn.1001-4330.2017.12.004
棉花植株氮素含量与干物质积累的相关性
Study on the Correlation between Nitrogen Content and Dry Matter Accumulation in Cotton
摘要
Abstract
[Objective] To find out the correlation between dry matter accumulation and nitrogen content of cotton and provide reference for exploring the mechanism of nitrogen transformation.[Method] The experiment was conducted to determine the nitrogen content and dry matter of organs in the 4 different varieties.[Result]There were some differences in nitrogen content and dry matter accumulation among different cotton varieties,and hybrid cotton had certain growth advantage;Accumulation of nitrogen in each growth stage of cotton varieties in plant nutrition and dry matter accumulation was positively related;Among them,the correlation coefficient of Tian Za No.2 reached 0.999,8.In the reproductive stage,there was no correlation between the two;Nitrogen content and dry matter accumulation were highest in leaves at bud stage,reaching 7.26 g/hm2 and 955.13 kg/hm2,respectively;The reproductive organs reached the highest during the late blooming period;Among the different varieties,Tian Za No.2 was the highest in nitrogen content and dry matter accumulation,reaching 24.64 g/hm2 and 11,750.64 kg/hm2.[Conclusion] The hybrid cotton has certain advantages in nitrogen and dry matter accumulation,and nitrogen content in vegetative growth stage is linearly related to dry matter accumulation,and leaves occupy an important proportion.关键词
棉花/氮素/干物质积累/相关性Key words
cotton/nitrogen/dry matter accumulation/correlation分类
农业科技引用本文复制引用
娄善伟,马腾飞,托合提·艾买提,张怀军,王大光,边洋,司地克江,张鹏忠..棉花植株氮素含量与干物质积累的相关性[J].新疆农业科学,2017,54(12):2182-2189,8.基金项目
新疆维吾尔自治区自然科学基金项目“不同氮效棉花品种植株氮索阈值及其影响因子研究”(2017D01A07)Natural Science Foundation Project of Xinjiang "The Study on Plant Nitrogen Threshold and Its Influencing Factors in Different Nitrogen Efficiency Cotton Varieties" (2017D01A07) （2017D01A07）
