| 多效唑提高水稻净光合速率和延缓衰老效应的研究 |
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| 引用本文： | 刘传飞,曾晓春.多效唑提高水稻净光合速率和延缓衰老效应的研究[J].江西农业大学学报,1992,14(1):40-43. |
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| 作者姓名： | 刘传飞 曾晓春 |
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| 作者单位： | 江西农业大学农学系
(刘传飞，曾晓春)，江西农业大学农学系(陈善坤) |
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| 摘 要： | 水稻赣秀早在剑叶出叶期喷施300 ppm多效唑能显著地延缓水稻叶片的衰老。主要表现在缓解叶绿素含量的减少和净光合速率的下降。多效唑对水稻叶片衰老的延缓效应和净光合速率的提高与促进超氧物歧化酶(SOD)和过氧化氢酶(CAT)活性以及抑制丙二醛(MDA)含量的升高有关。
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| 关 键 词： | 多效唑唑 衰老 净光合速率 水稻 |
STUDIES ON EFFECTS OF PACLOBUTRAZOL ON INCREASING NET PHOTOSYNTHETIC RATE AND DELAYING SENESCENCE OF RICE PLANTS |
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| Liu Chuanfei Zhen Xiaochun Chen Shankun.STUDIES ON EFFECTS OF PACLOBUTRAZOL ON INCREASING NET PHOTOSYNTHETIC RATE AND DELAYING SENESCENCE OF RICE PLANTS[J].Acta Agriculturae Universitis Jiangxiensis,1992,14(1):40-43. |
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| Authors: | Liu Chuanfei Zhen Xiaochun Chen Shankun |
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| Abstract: | Our experimental results showed that the early rice, treated with paclobutrazol when the flag leaf appears delays significantly the senescence of rice leaves: retarding the falling of chlorophyll content and the net photosynthetic rate. Our experimental results also rcvcaled that the effects of paclobutrazol on delaying the senescence of rice leaves and increasing the net photosynthetic rate correlate to the promotion of the activities of superoxide dismutase (SOD) and catalase (CAT) and the resistance against the increase of malonaldehyde (MDA) content. |
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| Keywords: | Paclobutrazol Senescence Net photosynthetic rate Superoxidc dismutase Catalase |
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