不同施钾量对小麦基因型吸收氮磷元素的影响  

Effects of Different Potassium Levels on N and P Uptake by Wheat Genotypes

作　　者：王姣爱[1] 张定一[1] 裴雪霞[1] 姬虎太[1] 黄玉玲[1] 吕雪梅[1] 

机构地区：[1]山西省农业科学院小麦研究所,山西临汾041000

出　　处：《山西农业科学》2002年第3期32-34,共3页Journal of Shanxi Agricultural Sciences

基　　金：山西省自然科学基金资助项目 (19991116 )

摘　　要：在相同钾水平下 ,不同小麦基因型植株含氮、磷量差异显著。在低钾或缺钾条件下 ,7个小麦基因型间植株N/K比差异显著 ,P/K比差异不大。在供钾充足条件下 ,不同小麦基因型植株N/K ,P/K比不存在显著差异。从而可以看出不同小麦基因型耐低钾及高效利用钾的能力与植株氮的吸收。Variation of N,P uptake,and N/K,P/K uptake ratio for seven wheat genotypeswas studied by using solution culture.Results showed that variation of N,P content of different genotypes is significant at the same K level.Variation of N/K is significantol low K and deficiency K level,but P/K is not significant.Variation of N/K and P/K ratio among different genotys is not significant at high K level.It is concluded that tolerance to low K and ability of high K efficiency of different wheat genotypes has relation to N uptake and N/K balance in the plants.

关 键 词：小麦 基因型 氮 磷 施钾量 吸收机制 

分 类 号：S512.1[农业科学—作物学] S143.3