| 摘要: |
| 采用50,100和150 mg·L-1三种浓度的ABA处理低温胁迫下的辣椒幼苗,结果表明:与对照(清水)相比,150 mg·L-1ABA处理使植株叶绿素平均含量提高23.3%, SOD酶、POD酶、CAT酶活性分别平均增加51.7%,28.1%和106.8%;质膜透性降低33.9%,植株的抗冷性提高,综合评价较佳。50～100 mg·L-1ABA处理对增加辣椒幼苗SOD酶、POD酶活性和降低质膜透性有一定作用。另外,外源ABA对抗冷性强的品种作用较明显。 |
| 关键词: 外源ABA，辣椒，抗冷性 |
| DOI： |
| 分类号:S641.301 |
| 基金项目:高等学校博士点基金资助项目 |
|
| Effect of ABA on Chill-resistant Pepper Seedlings |
|
Zou Zhirong Lu Guoyi,Zou Zhirong Lu Guoyi
|
| Abstract: |
| The results of spray application of 50 mg·L-1,100 mg·L-1 and 150 mg·L-1 with different concentration of ABA to pepper seedlings under low temperature
force showed that the 150 mg·L-1 of ABA not only raised the content of chlorophyll by
an average of 23.3% and the activity of SOD,POD and CAT by an average of 51.7%,
28.1% and 106.8%,respectively,but also decreased the penetrability of cell menbrance
by an average of 33.9%.The treated pepper seedlings exhibited high chill resistance
with better comprehensive appreciation.The 50～100 mg·L-1 of ABA application had a
certain effect on increasing the activity of SOD and POD, and on dercreasing the
penetrability of cell membrance.In addition,effects of exogenous ABA on varieties with
high resistance wereapparant. |
| Key words: ABA,pepper,chill-resistance, |
