| S──3307对水稻秧苗的控长促蘖效应及作用机理的研究 |
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| 引用本文： | 曾晓春,陈善坤.S──3307对水稻秧苗的控长促蘖效应及作用机理的研究[J].江西农业学报,1995,7(1):16-20. |
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| 作者姓名： | 曾晓春 陈善坤 |
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| 摘 要： | 本文报导Ｓ－３３０７浸种对水稻秧苗的控长促蘖效应，及其对秧苗解剖结构和内源激素的影响。（１）１０～４００（ｕｇ／ｍｌ）的Ｓ－３３０７溶液浸种对水稻幼苗均有不同程度的控长效应，控长程度随浓度的增加而增加；对分蘖也均有不同程度的促进，但以１００（ｕｇ／ｍｌ）和２００（ｕｇ／ｍｌ）两种浓度为佳。（２）Ｓ－３３０７提高水稻秧苗体内ＣＴＫ含量和ＣＴＫ／ＬＡＡ比例，这是其促进水稻分蘖的原因。（３）组织解剖切片的研究表明：Ｓ－３３０７处理的秧苗，根和叶鞘的细胞横向扩大，纵向缩短。
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| 关 键 词： | S－3307 水稻 控长促蘖 CTK IAA |
Studies on the Effect of S-3307 on the Growth and Tillering ofRice Seedlings and Its Mechanism |
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| Abstract: | Effect of S-3307 on rice seedling growth and tillering in rellation to seedling anatomyand endosenous hormunes was studied. 10￣ 400ug ml￣-1 S-3307 solution could regulate seedlinggrowth and facilitate tillering by soaking seeds. As S-3307 concentration increased 3 the growth-regulating effect became greater. For tillerins facilitation, however,100 and 200 um . ml-1 weremost effective, Further studies indicated that S- 3307 brought about an increase in CTK level andCTK/IAA ratio, which could facilitate tillering. The root and leaf sheath cells were observed tobecome laterally longer and lonsitudinally shorter after S-3307 treatment. |
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| Keywords: | S-3307 Rice Growth resulation Tillering facilitatiun CTK IAA |
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