【摘要】 以0、0.1、0.3、0.5、0.7、0.9mmol·L-1共6种浓度的外源一氧化氮(NO)供体硝普钠(SNP)处理豌豆、黄瓜、玉米和刺槐种子及其砂培幼苗后的结果表明:0.1￣0.3mmol·L-1SNP对种子发芽势、发芽率及幼苗的根长、叶绿素含量和生物量有明显的促进作用;随着SNP浓度的增加,种子萌发和幼苗生长明显受抑制,不同植物受抑制程度的差异明显。更多还原

【Abstract】 The seeds and seedlings planted in sand of pea, cucumber, maize and acacia were soaked by 0, 0.1,0.3, 0.5, 0.7 and 0.9 mmol·L-1 sodium nitroprusside (SNP), a nitric oxide (NO) donor. The results showed that0.1–0.3 mmol·L-1 SNP could promote the germination viability and germination percentage of seeds, the rootlength, chlorophyll contents and dry weights of seedings. With the concentration of SNP increased, the seedgermination and seedling growth were inhibited obviously. The inhibitory degree was different observablyamong plant species.更多还原