| Ca~(2+)提高黄瓜幼苗耐热性的研究 |
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| 引用本文： | 张健,刘美艳,肖炜.Ca~(2+)提高黄瓜幼苗耐热性的研究[J].中国蔬菜,2002,1(5):12-14. |
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| 作者姓名： | 张健 刘美艳 肖炜 |
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| 作者单位： | 徐州师范大学生物系; 徐州农业学校; 221009; |
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| 摘 要： | 在黄瓜幼苗二叶期叶面喷施Ca2 + 后 ,进行高温胁迫处理。结果表明 :Ca2 + 能有效地缓解高温下黄瓜幼苗叶片叶绿素含量、叶绿素a/b、光合速率和量子产量的下降速度 ;抑制高温下叶片MDA含量的增加和电解质的外渗 ;维持较高的活性氧清除酶活性 ,提高黄瓜幼苗对高温的耐受能力。
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| 关 键 词： | 黄瓜 Ca2+ 高温胁迫 |
| 收稿时间： | 2002-01-07; |
| 修稿时间： | 2002年1月7日 |
Stydy on Enhancement of Heat Tolerance of Cucumber Seedlings by Ca2+ |
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| Zhang Jiang ,Liu Meiyan ,Xiao Wei.Stydy on Enhancement of Heat Tolerance of Cucumber Seedlings by Ca2+[J].China Vegetables,2002,1(5):12-14. |
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| Authors: | Zhang Jiang Liu Meiyan Xiao Wei |
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| Institution: | 1.Department of Biology; Xuzhou Normal University; Xuzhou 221009;2.Xuzhou Agricultural School |
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| Abstract: | The cucumber seedlings were treated at high temperature after being sprayed with Ca 2 at the second true leaf. The results showed that Ca 2 could retard the descent speed of chlorophyll content,chlorophyll a/b,phytosynthetic rate and quantum yield effectively,and inhibit the increasement of MDA content and electrolytic leakage. The Ca 2 treatment also resulted in high activities of the enzymes which eliminate active oxygen in cucumber seedlings. |
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| Keywords: | Cucumber Ca 2 High temperature stress |
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