摘要
研究了不同浓度(0.5、1、5、10、50、100 mg/L)镍(Ni2+)处理对小麦种子萌发和幼苗生长的影响.。结果表明,低浓度(≤5 mg/L)有利于小麦种子的萌发及幼苗生长,中等浓度(5~10 mg/L)时能正常萌发和生长,而高浓度(>10 mg/L)则对其有明显的抑制作用,且随浓度增大抑制作用逐渐增强。相对于高浓度Ni2+对芽的长度和重量的抑制作用,对根的长度和重量的抑制作用更大。
The effects of Ni2+ in different concentration (0.5,1,5,10,50,100 mg/L) on seed germination and seedlings growth of wheat ( Triticum aestivum L. ) were investigated. The results showed that the lower Ni2+ (≤5 mg/L ) concentration could promote seed germination and seedling growth of wheat to a certain degree, whereas the higher Ni2+( 〉 10 mg/L) concentration inhibited wheat seed germination and seedling growth. The length and weight of root were inhibited by Ni2+ stress more than that of wheat seed.
出处
《种子》
CSCD
北大核心
2011年第12期18-20,共3页
Seed
基金
河南省科技攻关(102102110172)
关键词
镍
小麦
种子
胁迫
萌发
nickel
wheat
seed
stress
germination