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Position: Home > Articles > Effects of Nitrogen on Plant Type Indices of Weak Gluten Wheat Cultivar Yangmai No.9 with Good Quality and High Yield Hubei Agricultural Sciences 2012,51 (23) 58-62

氮肥对弱筋小麦扬麦9号优质高产株型指标的调控

作  者:
徐月明;王祥菊;刘萍
单  位:
扬州环境资源职业技术学院
关键词:
弱筋小麦;扬麦9号;优质;高产;株型指标;氮肥
摘  要:
通过氮肥试验,初步明确了弱筋小麦扬麦9号优质高产的株型指标和群体质量,并研究了其与产量、品质之间的关系以及氮肥对其的调控效应。结果表明,剑叶宽、倒二叶宽与子粒产量呈显著正相关,与子粒蛋白质、湿面筋含量呈显著或极显著正相关;产量、蛋白质、湿面筋含量与株高、穗长、穗下节间长、穗下节间/节间总长、(穗下节间+穗长)/株高呈显著或极显著正相关,与第一节间长呈显著负相关;上层根数与单穗重呈极显著正相关。在此次试验条件下,扬麦9号在240万/hm2基本苗基础上,施氮量以180 kg/hm2、氮肥运筹以基肥∶壮蘖肥∶拔节肥∶孕穗肥为5∶1∶2∶2处理可建立优质高产的合理群体结构,较好地协调高产与优质的矛盾。
译  名:
Effects of Nitrogen on Plant Type Indices of Weak Gluten Wheat Cultivar Yangmai No.9 with Good Quality and High Yield
作  者:
XU Yue-ming,WANG Xiang-ju,LIU Ping(Yangzhou Vocational Technical College of Environmental Resources,Yangzhou 225127,Jiangsu,China)
关键词:
weak gluten wheat;Yangmai No.9;good quality;high yield;plant type index;nitrogen
摘  要:
Field nitrogen experiment was conducted to clarify the plant type indices and population quality of weak gluten wheat cultivar Yangmai No.9 with good quality and high yield;meanwhile,their relationship with the yield and quality of wheat and the effects of nitrogen on them were also studied.The results showed that the width of sword leaf and top 2nd leaf was significantly positively correlated with grain yield,significantly or very significantly positively correlated with the protein and wet gluten content.The yield,protein and wet gluten content was significantly or very significantly negatively correlated with plant height,ear length,internode length below ear,internode length below ear/total length of internode,(ear length+internode length below ear)/plant height,and were significantly negatively correlated with the first node length.And the number of upper layer roots was significantly negatively correlated with weight per ear.With the plant seedling density of 2.40×106 ind./hm2,N applied at dose of 180 kg/hm2 with the proportion of N applied before sowing,at tillering stage,elongation stage and flag leaf stage at 5∶1∶2∶2 for weak gluten wheat Yangmai 9 could help establishing reasonable population structure which coordinated the conflict of high yield and good quality.

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