不同氮钾元素处理对白三叶与高加索三叶草杂交后代根系的影响  

Effects of different nitrogen and potassium treatments on the root system of hybrids of caucasian clover × white clover

作　　者：刘嘉伟[1] 何丽君[1] 王明玖[1] LIU Jiawei;HE Lijun;WANG Mingjiu(Inner Mongolia Agricultural University,Hohhot 010019!China)

机构地区：[1]内蒙古农业大学,内蒙古呼和浩特010019

出　　处：《北方农业学报》2017年第4期35-42,共8页Journal of Northern Agriculture

基　　金：国家自然科学基金项目(31260577);内蒙古科学技术厅项目(201602083)

摘　　要：试验选取以白三叶为父本,高加索三叶草为母本的F_1株系,进行不同氮钾元素处理,分别测定根长、根直径和根表面积,以观察根部对不同氮钾的反应。结果表明:亲本和杂交后代在吸收钾离子的同时,也会受到氮元素的影响,根系各项指标均在施氮水平为N2和N3,施钾水平为K2和K3处理下出现最大值,在氮钾元素互作处理下,F_1和亲本表现为在N3K2处理下根系各项指标表现较好。The test selects white clover as male and caucasian clover as female F1 lines,different nitrogen and potassium treatment,to observe the root of different nitrogen and potassium responses for nitrogen and potassium for plant root growth.The results showed that root length,root diameter and root surface area were determined at the same time,found that parents and hybrids in the absorption of potassium ions may be affected by the nitrogen.When nitrogen level was N2 and N3 and K level for K2 and K3 treatment root indicators showed a maximum value.Under the interaction of nitrogen and potassium,F1 and parents showed that the indexes of root system were best under N3K2 treatment.

关 键 词：白三叶 高加索三叶草 根系 氮处理 钾处理 F1株系 

分 类 号：S541.2[农业科学—作物学]