| 低温弱光对西瓜幼苗生理特性的影响 |
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| 引用本文： | 李爱民,张永泰,熊飞,余徐润,陈刚,王忠,张瑛.低温弱光对西瓜幼苗生理特性的影响[J].扬州大学学报(农业与生命科学版),2012,33(2):78-82,94. |
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| 作者姓名： | 李爱民 张永泰 熊飞 余徐润 陈刚 王忠 张瑛 |
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| 作者单位： | 1. 江苏里下河地区农业科学研究所,江苏扬州,225007
2. 扬州大学江苏省作物遗传生理重点实验室/农业部长江中下游作物生理生态与栽培重点开放实验室,江苏扬州,225009 |
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| 基金项目： | 江苏省科技支撑计划项目 |
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| 摘 要： | 以5个西瓜品种(系)为材料,研究低温(10℃)和弱光200μmol·(m2·s)-1]对幼苗有关生理特性的影响。结果表明:各品种(系)的冷害指数、叶片主脉结构伤害程度、膜透性、MDA含量均随胁迫时间的延长而增加,光合速率随胁迫时间的延长而下降,而叶片SOD活性、CAT活性、SPAD值随着胁迫时间的延长先增加而后降低。综合评价各项生理指标,5个西瓜品种(系)耐低温弱光性由强到弱依次为鉴20、59046、扬9808、早春红玉、8424。
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| 关 键 词： | 西瓜 低温弱光 生理特性 综合评价 |
Effect of low temperature and weak light on physiological characteristics of seedling of the different watermelon varieties |
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| LI Ai-min
,
ZHANG Yong-tai
,
XIONG Fei
,
YU Xu-run
,
CHEN Gang
,
WANG Zhong
,
ZHANG Ying.Effect of low temperature and weak light on physiological characteristics of seedling of the different watermelon varieties[J].Journal of Yangzhou University:Agricultural and Life Science Edition,2012,33(2):78-82,94. |
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| Authors: | LI Ai-min ZHANG Yong-tai XIONG Fei YU Xu-run CHEN Gang WANG Zhong ZHANG Ying |
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| Institution: | 1(1.Lixiahe Agric Res Inst of Jiangsu Prov,Yangzhou 225007,China; 2.Key Lab of Crop Gen and Physiol of Jiangsu Prov/Key Lab of Crop Physiol,Eco and Cult in Mid and Low Reaches of Yangtse Riv of MOA,Yangzhou Univ Yangzhou 225009,China) |
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| Abstract: | In order to provide a reference for selecting reasonable species with cold and weak light tolerance,five watermelon varieties were chosen to investigate correlative physiological parameters under low temperature(10 ℃) and weak light 200 μmol·(m2·s)-1] stress.The results were as followings:With the stress days prolonging,the chilling injury index,the degree of injured nervation,electrolyte leakage and MDA contents of leaf increased,net photosynthesis rate decreased,and the activities of SOD,CAT and SPAD values rose at earlier stages and then decreased at the later stages.According to comprehensive physiology indexes,the tolerance to chilling and weak light of five watermelon varieties ranked as Jian 20>59046>Yang9808>Zaochunhongyu>8424. |
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| Keywords: | watermelon low temperature and weak light physiological characteristics comprehensive evaluation |
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