外源NO对向日葵种子萌发和幼苗生长的影响  

Effects of Exogenous Nitric Oxide on Seed Germination and Seedling Growth of Sunflower

作　　者：王文浩[1] 郑洪元[1] 刘文俊[1] 何丽芬[1] 闫玉星[1] 

机构地区：[1]山西省农业科学院经济作物研究所,山西汾阳032200

出　　处：《作物杂志》2017年第4期169-172,共4页Crops

基　　金：国家星火计划项目(2015GA630003);山西省农业科学院育种工程(16yzgc004)

摘　　要：以食用向日葵晋葵11号为试验材料,分别以不同浓度的SNP(Sodium nitroprusside,硝普钠,NO供体)溶液进行浸种处理,研究各处理对向日葵种子的发芽势、发芽率、发芽指数、种子简易活力指数和苗高、根长的影响。结果表明,低浓度的SNP(0.01~0.50mmol/L)对向日葵种子的萌发和幼苗的生长具有促进作用,其中0.50mmol/L SNP对测定的各项指标促进作用均达到显著水平;高浓度的SNP(1.00mmol/L)表现为抑制作用,其中对发芽率抑制作用显著。The effects of different concentrations of SNP （sodium nitroprusside, NO donor） on the germination potential, germination rate, germination index, seed simple vigor index and seedling height, root length of sunflower were studied in the experiment. The results showed that low concentration of SNP （0.01-0.50mmol/L） could promote the seed germination and seedling growth of sunflower, and the effect of 0.5mmol/L SNP promote the indexes reached significant level. High concentration of SNP （1.00mmol/L） showed some inhibitory effect and the inhibitory effect on germination rate was signifficant.

关 键 词：NO 向日葵 种子萌发 幼苗生长 硝普钠 

分 类 号：S565.5[农业科学—作物学]