| 不同老化处理对蒲公英种子以及幼苗质量的影响 |
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| 引用本文： | 武彦芳,张建,祈茜,王小映.不同老化处理对蒲公英种子以及幼苗质量的影响[J].种子,2017(4):32-35. |
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| 作者姓名： | 武彦芳 张建 祈茜 王小映 |
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| 作者单位： | 长江大学园艺园林学院,湖北荆州,434025 |
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| 基金项目： | 湖北省教育厅中青年人才项目(Q 20161301) |
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| 摘 要： | 探讨不同老化处理方式对药用蒲公英种子质量、幼苗形态以及生理生化等方面的影响.结果表明:1)贮藏11个月以上的种子,活力全部丧失;随着老化处理时间的延长,种子发芽率不断降低,但对种子发芽势影响不同;2)甲醇老化处理之后的幼苗长势最佳,高温高湿老化处理的幼苗长势次之,正常发育的幼苗长势最差;3)正常发育的蒲公英幼苗可溶性糖含量最高;随老化时间递增,高温高湿处理的可溶性糖含量逐渐减少,甲醇处理的可溶性糖含量逐渐增加;甲醇老化处理1.5h的幼苗叶绿素总量最高,与其它处理达到显著性差异,随老化时间延长,叶绿素总量均呈上升趋势;甲醇老化处理1.5h幼苗,其过氧化氢酶活性最大,约为正常处理幼苗的10.2倍,随老化时间延长,甲醇处理的过氧化氢酶活性经历了一个骤降又骤增的过程;高温高湿处理的过氧化氢酶活性则逐渐降低.
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| 关 键 词： | 蒲公英 老化处理 种子活力 生理指标 幼苗质量 |
The Effect of Different Methods of Seeds Treated by Artificial Aging for the Dandelion Seeds and Seedlings |
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| WU Yanfang,ZHANG Jian,QI Xi,WANG Xiaoying.The Effect of Different Methods of Seeds Treated by Artificial Aging for the Dandelion Seeds and Seedlings[J].Seed,2017(4):32-35. |
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| Authors: | WU Yanfang ZHANG Jian QI Xi WANG Xiaoying |
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| Abstract: | Our purpose is to investigate dandelion seeds quality,seedling morphological and the effect of physiological and biochemical by the artificial aging methods.The results are as follows:1) the seed vitality was decrease to zero after storage for more than 11 months;With the extension of aging time,the germination percentage were reduced gradually,while seed germination potential had different results;2) the seedlings with methanol aging treatment had the best quality,the high temperature and high humidity aging treatment took the second place,the normal treatment showed the worst;3) the soluble sugar content of normal development dandelion seedling were the highest in leaves;With increasing aging time,soluble sugar content gradually reduce by the high temperature and high humidity treatment,while opposite to the of methanol treatment;the plants of methanol aging process 1.5 h had the highest total chlorophyll,and reached significant difference to other treatments,with the extension of aging time,the total chlorophyll was gradually increase;for catalase activity,1.5 h seedlings methanol aging treatment was about 10.2 times than the normal processing seedlings,with the extension of aging time,catalase activity has experienced a process of plunging and surge in methanol process of seeds;while high temperature and high humidity aging treatment of catalase activity was gradually reduced. |
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| Keywords: | dandelion aging treatment seed vigor physiological parameters seedling quality |
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