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| 水稻旱育秧苗萎蔫反应及其生理响应研究 | |
| 引用本文： | 赵言文,丁艳锋,陈留根,黄丕生,王强盛.水稻旱育秧苗萎蔫反应及其生理响应研究[J].南京农业大学学报,2000,23(3):13-16. |
| 作者姓名： | 赵言文 丁艳锋 陈留根 黄丕生 王强盛 |
| 作者单位： | 1. 江苏省农业科学院现代化所,南京210014 2. 南京农业大学农业部作物生长调控重点开放实验室,南京,210095 3. 江苏省农业科学院现代化研究所,南京,210014 |
| 基金项目： | 国家“九五”重点科技攻关项目!(96 0 0 4 0 1 10 0 1)，农业部重点攻关项目!(农 85 0 2 0 2 0 4) |
| 摘 要： | 从旱育秧苗离土萎蔫反应及其生理响应方面初步研究了旱育秧苗的水分生理特性和对其抗旱性的影响。结果表明：时育秧苗离土后达到临界萎蔫时间比水育秧早６０ｍｉｎ左右，失水速度较快，但旱育秧苗临界萎蔫后失水速率比水水秧苗低５５．２％，且临界萎蔫后旱育秧苗在水中恢复展叶所需时间短于水秧苗１６０￣２１４ｍｉｎ，吸水速率是水秧苗的２．４￣６．３倍。旱育秧苗在离土－临界萎蔫－再吸水恢复展叶过程中，叶片中硝酸还原酶活性 |
| 关 键 词： | 水稻 旱育秧苗 萎蔫 水分代谢 生理特性 |
| 修稿时间： | 1999-10-9 |
Study on wilting reaction of dry nursery seedlings and physiological response to it |
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| Zhao Yanwen,Ding Yanfeng,Huang Pisheng,Wang Qiangsheng,Chen Liugen.Study on wilting reaction of dry nursery seedlings and physiological response to it[J].Journal of Nanjing Agricultural University,2000,23(3):13-16. | |
| Authors: | Zhao Yanwen Ding Yanfeng Huang Pisheng Wang Qiangsheng Chen Liugen |
| Abstract: | The wilting reaction of dry nursery seedlings and physiological response to it were studied.The results showed as follows:Compared with moist nursery seedlings(MNS),dry nursery seedlings(DNS)wilted much easily,60 minutes early.But after wilting,the rate of losing water of DNS was 55 2% slower than that of MNS. And the duration of DNS recovery from critical wilting was 160?214 minutes shorter than MNS when dipped in water.The rate of water absorption of DNS was as 2 4?6 4 times as that of MNS.From wilting in air to recovery in water,the NRA in leaves of DNS was as 6 3?17 5 times and 13 0?21 0 times as that of MNS,respectively.Proline content of DNS was much higher than MNS while wilting,but lower than MNS while recovery in water.These physiological characteristics indicate that DNS have stronger drought resistance,and can recover more rapidly than MNS. |
| Keywords: | rice dry nursery seedlings wilting water metabolism physiological characteristics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |