| 不同施磷措施对橡胶幼苗根系生长的影响 |
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| 引用本文： | 贺军军,陶仲华,林钊沐,罗微,林清火. 不同施磷措施对橡胶幼苗根系生长的影响[J]. 林业科技开发, 2008, 22(3): 64-66 |
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| 作者姓名： | 贺军军 陶仲华 林钊沐 罗微 林清火 |
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| 作者单位： | 中国热带农业科学院橡胶研究所,农业部热带作物栽培生理学重点开放实验室,海南,儋州,571737 |
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| 基金项目： | 科技部科研院所社会公益研究专项基金，国家重点基础研究发展计划(973计划)，中国热带农业科学院资助项目 |
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| 摘 要： | 以热研7-33-97橡胶芽接苗为研究材料,设置了6个不同的施磷水平,进行了磷对橡胶幼苗根系生长的影响研究.结果表明:随着施磷量的增加,叶片和根系磷含量在增加,根系可溶性糖、可溶性蛋白和游离氨基酸含量在减少.不施磷和500mg/kg磷浓度时,根系可溶性糖、可溶性蛋白和氨基酸含量最高,酸性磷酸酶活性最大;当施磷浓度达到1 000 mg/kg时,根系活力达到最大值,可溶性糖、游离氨基酸含量减少,都达到显著水平,酸性磷酸酶活性显著降低.
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| 关 键 词： | 橡胶幼苗 磷肥 根系 |
| 修稿时间： | 2008-03-04 |
Effect Difrerent Phosplaorous Fertilizer Levels on Root Growth of Rubber Seeqdlings |
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| HE Jun-jun,TAO Zhong-hua,LIN Zhao-mu,LUO Wei,LIN Qing-huo. Effect Difrerent Phosplaorous Fertilizer Levels on Root Growth of Rubber Seeqdlings[J]. China Forestry Science and Technology, 2008, 22(3): 64-66 |
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| Authors: | HE Jun-jun TAO Zhong-hua LIN Zhao-mu LUO Wei LIN Qing-huo |
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| Abstract: | SCATC 7-33-97 was used as the experiment material to study the effects of the different phosphorous fertilizer levels on root growth of Hevea Brasiliensis in this paper.The results showed that the phosphorous content in leaves and roots was increased with the phosphorous fertilizer levels,but the content of soluble sugar,soluble proteins and free amino acids was decreased.The content of soluble sugar,soluble proteins,free amino acids and acid phosphatase activity in roots at the phosphorus level of 0 and 500 mg/kg was obviously higher than that at the other levels.In the level of 1 000 mg/kg,the soluble sugar,amino acids content and the acid phosphatase activity was significantly lower than that in other levels. |
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| Keywords: | Rubber seedling Phosphorous fertilizer Roots |
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