广西主栽玉米品种苗期干旱胁迫及复水补偿效应研究
了解广西生产上主要种植的玉米品种桂单0810、正大619、迪卡008、琛玉969、桂单901的苗期耐旱性及其复水补偿效应,为选择耐旱品种提供科学依据。试验采用桶栽法,对这5个品种在苗期分别给予为期4、8、12、16和20 d的干旱胁迫,然后分别复水,以充分供水作为对照。结果表明：苗期干旱胁迫影响植株的形态建成,植株的最长根长度减少,总根数减少;冠长减少;最长叶片长度减少,总叶片数减少,死亡叶片数增加;穗长变短,穗粗变细,秃尖变长;穗重变轻。轻度干旱（4 d）后复水后可迅速得到补偿,以后随着干旱强度的增大,补偿能力越来越弱。5个品种中桂单0810的根系较发达,在各干旱胁迫强度下,根系最长,根冠比...
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| Published in | 西南农业学报 Vol. 29; no. 3; pp. 479 - 485 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
广西农业科学院玉米研究所,广西南宁,530007%广西农业科学院科技处,广西南宁,530007
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-4829 |
| DOI | 10.16213/j.cnki.scjas.2016.03.003 |
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| Abstract | 了解广西生产上主要种植的玉米品种桂单0810、正大619、迪卡008、琛玉969、桂单901的苗期耐旱性及其复水补偿效应,为选择耐旱品种提供科学依据。试验采用桶栽法,对这5个品种在苗期分别给予为期4、8、12、16和20 d的干旱胁迫,然后分别复水,以充分供水作为对照。结果表明：苗期干旱胁迫影响植株的形态建成,植株的最长根长度减少,总根数减少;冠长减少;最长叶片长度减少,总叶片数减少,死亡叶片数增加;穗长变短,穗粗变细,秃尖变长;穗重变轻。轻度干旱（4 d）后复水后可迅速得到补偿,以后随着干旱强度的增大,补偿能力越来越弱。5个品种中桂单0810的根系较发达,在各干旱胁迫强度下,根系最长,根冠比最大;穗长最长,秃尖最短,单穗粒重最重。干旱胁迫12 d内（轻、中度干旱胁迫）后复水,桂单0810果穗单穗粒重占同期对照的比例最大;干旱胁迫16-20 d（重度干旱胁迫）后复水,迪卡008果穗单穗粒重占同期对照的比例最大。5个参试品种中,桂单0810和迪卡008苗期干旱胁迫及复水补偿效应最强,其次为正大619,最差为琛玉969、桂单901。 |
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| AbstractList | S513; 了解广西生产上主要种植的玉米品种桂单0810、正大619、迪卡008、琛玉969、桂单901的苗期耐旱性及其复水补偿效应,为选择耐旱品种提供科学依据.试验采用桶栽法,对这5个品种在苗期分别给予为期4、8、12、16和20 d的干旱胁迫,然后分别复水,以充分供水作为对照.结果表明:苗期干旱胁迫影响檀株的形态建成,植株的最长根长度减少,总报数减少;冠长减少;最长叶片长度减少,总叶片数减少,死亡叶片数增加;穗长变短,穗粗变细,秃尖变长;穗重变轻.轻度干旱(4 d)后复水后可迅速得到补偿,以后随着干旱强度的增大,补偿能力越来越弱.5个品种中桂单0810的根系较发达,在各干旱胁迫强度下,根系最长,根冠比最大;穗长最长,秃尖最短,单穗粒重最重.干旱胁迫12 d内(轻、中度干旱胁迫)后复水,挂单0810果穗单穗粒重占同期对照的比例最大;干旱胁迫16 ～20 d(重度干旱胁迫)后复水,迪卡008果穗单穗粒重占同期对照的比例最大.5个参试品种中,挂单0810和迪卡008苗期干旱胁迫及复水补偿效应最强,其次为正大619,最差为琛玉969、桂单901. 了解广西生产上主要种植的玉米品种桂单0810、正大619、迪卡008、琛玉969、桂单901的苗期耐旱性及其复水补偿效应,为选择耐旱品种提供科学依据。试验采用桶栽法,对这5个品种在苗期分别给予为期4、8、12、16和20 d的干旱胁迫,然后分别复水,以充分供水作为对照。结果表明：苗期干旱胁迫影响植株的形态建成,植株的最长根长度减少,总根数减少;冠长减少;最长叶片长度减少,总叶片数减少,死亡叶片数增加;穗长变短,穗粗变细,秃尖变长;穗重变轻。轻度干旱（4 d）后复水后可迅速得到补偿,以后随着干旱强度的增大,补偿能力越来越弱。5个品种中桂单0810的根系较发达,在各干旱胁迫强度下,根系最长,根冠比最大;穗长最长,秃尖最短,单穗粒重最重。干旱胁迫12 d内（轻、中度干旱胁迫）后复水,桂单0810果穗单穗粒重占同期对照的比例最大;干旱胁迫16-20 d（重度干旱胁迫）后复水,迪卡008果穗单穗粒重占同期对照的比例最大。5个参试品种中,桂单0810和迪卡008苗期干旱胁迫及复水补偿效应最强,其次为正大619,最差为琛玉969、桂单901。 |
| Author | 田树云 文仁来 何静丹 苏月贵 何雪银 苏义成 黄开健 张述宽 |
| AuthorAffiliation | 广西农业科学院玉米研究所,广西南宁530007 广西农业科学院科技处,广西南宁530007 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.16213/j.cnki.scjas.2016.03.003 |
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| DocumentTitleAlternate | Effect of Guangxi Main Cultivated Maize Varieties under Drought Stress at Seedling Stage and Its Water Compensation |
| DocumentTitle_FL | Effect of Guangxi Main Cultivated Maize Varieties under Drought Stress at Seedling Stage and Its Water Compensation |
| EndPage | 485 |
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| Issue | 3 |
| Keywords | 复水补偿 玉米 干旱胁迫 Re-watering compensation 苗期 Drought stress Seedling stage Maize |
| Language | Chinese |
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| Notes | TIAN Shu-yun ,WEN Ren-lai ,HE Jing-dan ,SU Yue-gui ,HE Xue-yin ,SU Yi-cheng ,HUANG Kai-jian ,ZHANG Shu-kuan （1. Maize Research Institute of Guangxi Academy of Agricultural Sciences, Guangxi Nanning 530007, China;2. Science and Technology Management Bureau of Guangxi Academy of Agricultural Sciences,Guangxi Nanning 530007, China） Maize; Drought stress; Re-watering compensation; Seedling stage 51-1213/S Five maize hybrids of Guidan0810, Dika008 ,Zhengda619, Chenyu969 and Guidan901 utilizing in Guangxi maize production area were investigated at seedling stage for drought stress and re-watering compensation effect to provide a scientific basis for the selection of drought-tolerant varieties. With petted culture,4 replications and sufficient water supply as control,the 5 maize hybrids of Guidan0810, Dika008, Zhengda619, Chenyu969 and Guidan901 were respectively exposed to 5 types of drought stress（ a period of 4 days,8 days, 12 days, 16 days ,20 days of drought stress）and re-watered after each drought stress. The res |
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| PublicationTitle | 西南农业学报 |
| PublicationTitleAlternate | Southwest China Journal of Agricultural Sciences |
| PublicationTitle_FL | Southwest China Journal of Agricultural Sciences |
| PublicationYear | 2016 |
| Publisher | 广西农业科学院玉米研究所,广西南宁,530007%广西农业科学院科技处,广西南宁,530007 |
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| Snippet | 了解广西生产上主要种植的玉米品种桂单0810、正大619、迪卡008、琛玉969、桂单901的苗期耐旱性及其复水补偿效应,为选择耐旱品种提供科学依据。试验采用桶栽法,对这5个品种在苗... S513; 了解广西生产上主要种植的玉米品种桂单0810、正大619、迪卡008、琛玉969、桂单901的苗期耐旱性及其复水补偿效应,为选择耐旱品种提供科学依据.试验采用桶栽法,对这5个品... |
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| SubjectTerms | 复水补偿 干旱胁迫 玉米 苗期 |
| Title | 广西主栽玉米品种苗期干旱胁迫及复水补偿效应研究 |
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