摘要
用不同浓度的水杨酸（0．15、0．25、0．5、1、2、3 mol L^-1）浸泡3个不同品种干旱胁迫条件下的黑麦草（欧必克、多福、凤凰）种子，研究水杨酸对3个不同品种的黑麦草种子萌发特性的影响。结果表明：0．15～1 mol ？L -1的水杨酸浸种处理的黑麦草种子萌发率明显增高，同时，水杨酸处理促进了黑麦草在干旱胁迫条件下胚根和胚芽的伸长。
Three varieties of ryegrass （Oubike ,Duofu ,Fenghuang） under drought stress conditions were soaked with different concentrations of salicylic acid （0 .15 ,0 .25 ,0 .5 ,1 ,2 ,3 mol L - 1 ） ,with the aim to study the effect of salicylic acid pretreatment on ryegrass seed germination characteristics .The results showed that the germination of ryegrass seeds under 0 .15 ~ 1mol ？L - 1 of salicylic acid was significantly increased ,meanwhile ,the elongation of ryegrass radicle and plantule under drought stress were promoted under salicylic acid treatment .
出处
《防护林科技》
2014年第9期11-12,25,共3页
Protection Forest Science and Technology
关键词
黑麦草
水杨酸
干旱胁迫
种子萌发
ryegrass
salicylic acid
drought stress
seed germination
