| 可溶性浓缩糖蜜对水稻生长发育的影响 |
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| 引用本文： | 李双,赵星海,叶祥盛,张丽梅,徐芳森,石磊,丁广大.可溶性浓缩糖蜜对水稻生长发育的影响[J].华中农业大学学报,2020,39(1):76-85. |
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| 作者姓名： | 李双 赵星海 叶祥盛 张丽梅 徐芳森 石磊 丁广大 |
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| 作者单位： | 华中农业大学资源与环境学院/微量元素研究中心/农业部长江中下游耕地保育重点实验室,武汉 430070;华中农业大学资源与环境学院/微量元素研究中心/农业部长江中下游耕地保育重点实验室,武汉 430070;华中农业大学资源与环境学院/微量元素研究中心/农业部长江中下游耕地保育重点实验室,武汉 430070;华中农业大学资源与环境学院/微量元素研究中心/农业部长江中下游耕地保育重点实验室,武汉 430070;华中农业大学资源与环境学院/微量元素研究中心/农业部长江中下游耕地保育重点实验室,武汉 430070;华中农业大学资源与环境学院/微量元素研究中心/农业部长江中下游耕地保育重点实验室,武汉 430070;华中农业大学资源与环境学院/微量元素研究中心/农业部长江中下游耕地保育重点实验室,武汉 430070 |
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| 基金项目： | 国家自然科学基金项目（31672215）； 国家重点研发计划项目（2017YFD0200100）； 中央高校基本科研业务费专项（2662019PY013） |
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| 摘 要： | 通过种子萌发及苗期水培试验分析可溶性浓缩糖蜜(condensed molasses soluble,CMS)对水稻种子萌发及苗期生长的影响,结果发现:不同CMS质量浓度对水稻的发芽率无明显影响,但CMS质量浓度超过0.15 g/L时会抑制水稻生长。水稻苗期水培试验发现,正常营养的基础上施加过量的CMS使水稻的根系直径显著增加,根长、根体积显著降低,抑制磷在根系和地上部的累积,水稻根系POD、CAT活性和MDA含量显著增加。盆栽试验表明,在1/2正常施化肥的基础上施加10 g/钵CMS时,水稻的单株产量相比不施化肥和1/2正常施化肥分别增加了143%和44%,而正常施化肥的基础上施加CMS对单株的产量影响不显著。结果表明:在养分缺乏的情况下施加一定量的CMS可以增加水稻的产量,但是在养分充足的情况下施加CMS却不能增加水稻的产量。
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| 关 键 词： | 可溶性浓缩糖蜜 水稻 种子萌发 苗期 生长调节 产量 |
Effects of condensed molasses soluble on rice growth and development |
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| Abstract: | The effects of condensed molasses soluble (CMS) on seed germination and seedling growth of rice were analyzed by seed germination and hydroponic culture experiments at seedling stage. Results showed that different concentrations of CMS had no significant effect on rice germination rate. But when the concentration of CMS exceeded 0.15 g/L,it inhibited rice growth. Results of hydroponics experiments at the seedling stage of rice showed that excessive CMS applied on the basis of normal nutrition significantly increased the root diameter,decreased root length and volume,inhibited the accumulation of phosphorus in root and shoot,and dramatically increased POD,CAT activity and MDA content roots of rice. Results of pot culture experiments showed that when 10 g per pot CMS was applied on the basis of half normal fertilization,the yield per plant of rice increased by 143% and 44% respectively compared with that of non-fertilizer and 1/2 normal fertilization only. However,the application of CMS on the basis of normal fertilization had no effect on rice yield. It is indicated that a certain amount of CMS can increase rice yield under deficient nutrient conditions,but cannot increase rice yield under sufficient nutrition conditions. |
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| Keywords: | condensed molasses soluble rice seed germination seedling stage growth regulation yield |
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