不同小麦品种对氮素吸收利用差异及其分类研究.pdf

华北农学报2008, 23 ( 增刊) : 213219 王树亮, 田奇卓, 李娜娜, 谢连杰, 裴艳婷, 李 慧 ( , 271018) : 30 , 2 , , , ; 2 2262% 4258% , 5818% 7867% , 7015% 5992% , 2426% 4264% ; , 1247% , 3016% , 983% , 547% 2 : 7213% 7414% , 2161% 1870% , 625% 716% 1456% 279% , 1347% , 19 218355 15 4 ; 20 12124 6 15 ; 14 22 2 : ; ; ; ; : S512. 01 : A : 1000- 7091( 2008) - 0213- 07 Study on the Difference of Nitrogen Uptake Efficiency and Classification in the Different Wheat Varieties WANG Shuli ng,TIAN Qizhuo, LI N n , XIE Li njie, PEI Y nting, LI Hui ( Sh ndong Agricultur l University, T i n 271018, Chin ) Abstract:Under high nd low fertility conditions, 30 m inwhe t v rieties in different periods were selected s m te ri ls in Sh ndong Province.The difference of nitrogen bsorption lloc tion nd utiliz tion were rese rched in the different whe t v rieties, nd the nitrogenefficient v rieties were selected. The results showed th t the difference of nitrogen con tent of whole pl nt, stemle f, glume, nd gr in mong the different whe t v rieties were highly signific nt. In two fertil ities conditions, the m x th n the min incre sed 2262% nd 4258%, 5818% nd 7867% , 7015% nd 5992%, 2426% nd 4264%, nd the nitrogen content of v rious org ns incre sed with the improvement of soil fertility. Aver ge nitrogen content of v rieties in the highfertility pl nted w s incre sed by 1247% , 3016%, 1226% nd 547% th n in the lowfertility.The ver ge nitrogen distribution mong v rieties in two fertilities conditions:gr in were 7213% nd 7414%, stemle f were 2161% nd 1870%, gl me were 625% nd 716%. Distribution of glume nd gr in in the low fertility conditions incre sed by 1456% nd 279% th n in the high fertility conditions, but stemle f decre sed 1347%. By the UPGMA of Clustering, Clustered Y n