低温对玉米苗期根系生长及磷养分吸收的影响  

Effects of Low Temperature on Root of Maize Seedling Growth and Phosphorus Uptake

作　　者：曹宁[1] 符力[1] 张玉斌[1] 闫飞[1] 杨振明[1] 

机构地区：[1]吉林大学植物科学学院,长春130062

出　　处：《玉米科学》2008年第4期58-60,共3页Journal of Maize Sciences

基　　金：粮食丰产科技工程重大科技专项(2006BAD02A10-6-4);吉林大学农学部引进人才启动基金项目(4305050102A0)

摘　　要：利用盆栽实验研究了低温对春玉米苗期根系生长、根际和非根际土壤磷的有效性及玉米磷吸收的影响。结果表明,低温抑制了玉米根系的生长,降低了玉米对磷的吸收。同时,低温胁迫下玉米苗期根际和非根际土壤有效磷均低于对照,且根际土壤磷素与非根际土壤磷素没有明显差异。Root growth, P uptake and available P in rhizosphere and bulk soil of spring maize were investigated with a pot experiment under low temperature stress. The experiment results showed that low temperature restrained root growth and P uptake of maize. Under low temperature, soil available P was lower than under normal temperature and soil available P had no significant difference in rhizosphere and bulk soil.

关 键 词：玉米 低温 根系生长 磷吸收 

分 类 号：S513.01[农业科学—作物学]