| 水稻开颖机理的探讨——Ⅱ.CO_2对水稻开颖的效应 |
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| 引用本文： | 玉忠,顾蕴洁,高煜珠.水稻开颖机理的探讨——Ⅱ.CO_2对水稻开颖的效应[J].作物学报,1989,15(1):59-66. |
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| 作者姓名： | 玉忠 顾蕴洁 高煜珠 |
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| 作者单位： | 江苏农学院植物生理教研组 |
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| 摘 要： | CO_2含量大于5%的气体,或者 pH 小于5.6的 CO_2溶液,或0.05mol/L 以上的碳酸盐与稀酸的反应液,都能显著地促进水稻开颖。诱导开颖的处理时间约20秒。浓度增高和处理时间加长却不能进一步增进开颖数。温度增高可促进 CO_2诱导开颖过程,呼吸抑制剂也不会中断这个过程。CO_2促进鳞片吸水膨大是促进开颖的原因。被处理的稻穗裂药
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| 关 键 词： | 水稻 开颖 CO_2 鳞片 |
| 收稿时间： | 1987-02-06 |
| 修稿时间： | 1988-01-02 |
Studies on the Mechanism of Rice Glume-Opening——Ⅱ.Effect of CO_2 on Glume-Opening |
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| Wang Zhong Gu Yunjie Gao Yuzhu.Studies on the Mechanism of Rice Glume-Opening——Ⅱ.Effect of CO_2 on Glume-Opening[J].Acta Agronomica Sinica,1989,15(1):59-66. |
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| Authors: | Wang Zhong Gu Yunjie Gao Yuzhu |
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| Institution: | Department of Agronomy; Jiangsu Agricultural College |
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| Abstract: | The glume-opening of rice could be promoted by CO_2 gas or solution with aconcentrition higher than 5% or a pH lower than 5.6 mol/L with a solution of carbonateand dilute acid.The time needed for the induction of glume-opening by CO_2 was 20 se-conds.Further increase in CO_2 concentration or prolongation of treating time did not pro-mote glume-opening any more.The inductive effect of CO_2 was not affected byrespiratory inhibitors but was affected by temprature.The mechanism of CO_2-induction orCO_2-promotion of glume-opening is that lodicule cells after treatment enhance water up-take and rapidly expended.A short time treatment with CO_2 did not harm to normaldehiscence of anther and the vitality of pollens.This technique can be applied to ricehybridization |
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| Keywords: | Rice Glume-opening CO_2 Lodicule |
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