干旱胁迫对4份玉米自交系生理与光合特性的影响

进行定量灌溉的桶栽试验,研究干旱胁迫对玉米干旱敏感自交系XD691和其他3个较耐旱自交系(ST8211、GZ18421和XD692)的生理和光合特性的影响。共进行3次干旱胁迫处理,同时设正常灌溉作对照。研究结果表明,在正常灌溉条件下,4份玉米自交系长势比较一致,但干旱胁迫下XD691茎秆下部枯叶明显多于其余3个自交系;干旱导致XD691的叶片含水量比其他自交系显著下降,光合速率相比其他3个自交系严重减弱;干旱胁迫下XD691的丙二醛增加量高于其它3个自交系;干旱胁迫下XD691脯氨酸累积量显著高于其他3个自交系;第2次干旱胁迫后玉米叶片酶活性增强幅度均高于第1次和第3次,第3次干旱胁迫处理后X...

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Published in西南农业学报 Vol. 29; no. 6; pp. 1264 - 1269
Main Author 覃永嫒 温国泉 顾明华 王兵伟 郑加兴 覃嘉明 黄安霞 时成俏
Format Journal Article
LanguageChinese
Published 广西农业科学院玉米研究所,广西南宁530007%广西农业科学院农业科技信息研究所,广西南宁,530007%广西大学农学院,广西南宁,530005%广西农业科学院玉米研究所,广西南宁,530007 2016
广西大学农学院,广西南宁530005
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ISSN1001-4829
DOI10.16213/j.cnki.scjas.2016.06.005

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Summary:进行定量灌溉的桶栽试验,研究干旱胁迫对玉米干旱敏感自交系XD691和其他3个较耐旱自交系(ST8211、GZ18421和XD692)的生理和光合特性的影响。共进行3次干旱胁迫处理,同时设正常灌溉作对照。研究结果表明,在正常灌溉条件下,4份玉米自交系长势比较一致,但干旱胁迫下XD691茎秆下部枯叶明显多于其余3个自交系;干旱导致XD691的叶片含水量比其他自交系显著下降,光合速率相比其他3个自交系严重减弱;干旱胁迫下XD691的丙二醛增加量高于其它3个自交系;干旱胁迫下XD691脯氨酸累积量显著高于其他3个自交系;第2次干旱胁迫后玉米叶片酶活性增强幅度均高于第1次和第3次,第3次干旱胁迫处理后XD691叶片的酶活性降低,而其他自交系均表现为升高。总体来说,XD691叶片在干旱下的自我保护能力差于耐旱系ST8211、GZ18421,也差于耐旱性中等的自交系XD692。
Bibliography:QIN Yong-ai , WEN Guo-quan , GU Ming-hua , WANG Bing-wei, ZHENG Jia-xing, QIN Jia-ming , HUANG An-xia, SHI Cheng-qiao. ( 1. Agriculture College of Guangxi University, Guangxi Nanning 530005, China, 2. Maize Research Institute, Guangxi Academy of Agricultural Sciences, Guangxi Nanning 530007, China ,3. Agricultural Science and Technology Information Research Institute, Guangxi Academy of Agricultural Sciences ,Guangxi Nanning 530007 ,China)
Maize; Drought-sensitive inbred line; Drought-resistant inbred line; Potosynthesis ; Physiological analysis
51-1213/S
The methods of planting maize inbred lines in buckets and keeping the same water with them were adopted, in order to study the effects of drought stress on the physiology and photosynthesis between a drought-sensitive maize inbred line XD691 and the other 3 lines. 3 drought and rewater treatments were proceeded in study. And normal irrigation was regarded as control. The results showed that under normal irrigation conditions, the growth of four inbred lines wer
ISSN:1001-4829
DOI:10.16213/j.cnki.scjas.2016.06.005