摘要
用300mg/LPP_(333)和30mg/LS-3307喷雾处理一叶一心期的水稻幼苗。三叶一心期取第二叶分别置于干旱及低温条件下,于胁迫处理后的不同时间测定叶片的电导率、脯氨酸含量及ABA含量的变化。结果表明:PP_(333)和S-2307均能明显减小干旱或低温胁迫下叶片的电导率及脯氨酸含量的上升。对照叶片在干旱胁迫下Al3A含量在4h之内迅速上升,然后又急剧下降,而PP_(333)及S-3307可级解这种变化,即使ABA含量的上升和下降幅度都大为减低。
Rice seedings were treated with 300 mg/LPP_(333),30mg/L S-3307 and distilled water atthe first leaf stage.At the third leaf stage,the second leaves were excised and put into drought or low-temperature conditions.After that,the electrical conductivity,the contents of prolineand ABA of the excised second leaves were meastured at different times.The results showedthat both PP_(333) and S-3307 reduced the stress-induced increase of electrical conductivity andthe contents of proline of the excised second leaves.The ABA contents of the excised secondleaves of the control increased sharply in the first 4 hours under drought stress,and then de-creased sharply.The ABA contents of the excised second leaves treated with PP_(333)or S-3307had the similar changes,but the changes were much slighter.
出处
《江西农业大学学报》
CAS
CSCD
1994年第3期288-291,共4页
Acta Agriculturae Universitatis Jiangxiensis
基金
江西省自然科学基金
关键词
水稻
多效唑
烯效唑
抗逆性
rice
paclobutrazol(PP_(333))
uniconazole(S-3307)
stress resistance