【作者】 高相彬； 王友华； 陈兵林； 郭一良； 李健； 周治国；

【Author】 GAO Xiang-bin,WANG You-hua,CHEN Bing-lin,GUO Yi-liang,LI Jian,ZHOU Zhi-guo (Nanjing Agricultural University/Ministry of Agriculture Key Laboratory of Crop Physiology & Ecology in Southern China,Nanjing 210095,China)

【机构】 南京农业大学/农业部南方作物生理生态重点开放实验室；

【摘要】 为探索棉铃对位叶氮浓度对棉纤维比强度形成的影响,以德夏棉1号(平均比强度为26 cN·tex^-1)为材料,在江苏南京（118°50′E,32°02′N,长江流域下游棉区）设置氮素试验以形成不同的棉铃对位叶氮浓度,研究棉铃对位叶氮浓度对棉纤维发育过程中蔗糖、纤维素含量及纤维比强度形成的影响。结果表明:棉铃对位叶氮浓度显著影响了纤维中蔗糖、纤维素含量以及纤维比强度,且叶氮浓度与上述指标均呈抛物线型变化。因此,存在适宜的叶氮浓度有利于纤维比强度的形成。更多还原

【Abstract】 To study effects of the subtending leaf nitrogen concentration on strength formation in cotton fiber.Dexiamian 1 was chosen as material and four nitrogen rates were applied to carry out different leaf nitrogen concentration in Nanjing,Jiangsu province of china.The result showed that the subtending leaf nitrogen concentration had a significant effect on sucrose content,cellulose content and fiber strength,respectively.Meanwhile,the content of sucrose,and cellulose all changed as a parabola-like curve according to the increasing of the nitrogen content in the leaf subtending boll.So,there exists an optimum leaf nitrogen curve for fiber strength formation.更多还原