| 枳种子对脱水的敏感性及在脱水过程中的生理响应 |
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| 引用本文： | 马文涛,樊卫国,裴芸.枳种子对脱水的敏感性及在脱水过程中的生理响应[J].西南农业学报,2011,24(3). |
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| 作者姓名： | 马文涛 樊卫国 裴芸 |
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| 作者单位： | 贵州省果树工程技术研究中心，贵州贵阳，550025;贵州大学喀斯特山地果树资源研究所，贵州贵阳，550025 |
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| 基金项目： | 贵州省“十一五”科技攻关计划项目(黔科合NZ字2007-3001); 贵州大学青年教师科技基金项目(贵大x082060); 贵州省果树工程技术研究中心建设专项项目(黔科合农G字2009-4003) |
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| 摘 要： | 为了探索脱水对枳种子萌发及生理影响,为枳种子的贮藏保存提供科学依据,采用自然脱水的方法,研究了枳种子含水量与萌发率的关系及其在自然脱水过程中的生理响应。结果表明:枳种子对脱水反应敏感,具有顽拗性。枳鲜种的含水量为38.26%,其发芽率随种子含水量的降低而下降;枳种子致死临界含水量在13%左右。当鲜种含水量降低到一定程度时,SOD、CAT活性有所增强,但含水量低于26.1%时,SOD、CAT活性下降;种子的相对电导率和MDA、可溶性糖、可溶性蛋白的含量随含水量的降低逐渐增加,POD活性下降。
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| 关 键 词： | 枳 种子 自然脱水 生理响应 顽拗性 |
Desiccation Sensitivity of Poncirus trifoliat Seeds and Its Physiological Responses to Natural Dehydration |
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| MA Wen-fao,FAN Wei-guo,PEI Yun.Desiccation Sensitivity of Poncirus trifoliat Seeds and Its Physiological Responses to Natural Dehydration[J].Southwest China Journal of Agricultural Sciences,2011,24(3). |
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| Authors: | MA Wen-fao FAN Wei-guo PEI Yun |
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| Institution: | MA Wen-tao1,2,FAN Wei-guo1,PEI Yun1,2(1.Guizhou Fruits Engineering Technology Research Centre,Guizhou Guiyang 550025,China,2.Research Institute for Fruit Resources of Karst Mountain Region,Guizhou University,China) |
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| Abstract: | To explore the physiological response to natural dehydration of Poncirus trifoliate during seed germination,the physiological characteristics and the relationship between moisture content and germination rate were studied.The result showed that the seed was recalcitrant because of its sensitivity in the dehydration process.Seeds and its germination rate decreased with the moisture content reduced.The moisture content of fresh seeds were 38.26 %.Critical water capacity of P.trifoliat seeds was about 13 %.The... |
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| Keywords: | Poncirus trifoliat Seed Natural dehydration Physiological responses Recalcitrance |
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