不同施磷水平对喜树幼苗生长及喜树碱积累的影响

杨朗生; 蒲擎宇; 蹇凯

doi:10.16779/j.cnki.1003-5508.2015.02.022

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不同施磷水平对喜树幼苗生长及喜树碱积累的影响

杨朗生 , 蒲擎宇 , 蹇凯

文章导航 > 四川林业科技 > 2015 > 36(2): 98-101,14

杨朗生, 蒲擎宇, 蹇凯. 不同施磷水平对喜树幼苗生长及喜树碱积累的影响[J]. 四川林业科技, 2015, 36(2): 98-101,14. doi: 10.16779/j.cnki.1003-5508.2015.02.022

引用本文:

杨朗生, 蒲擎宇, 蹇凯. 不同施磷水平对喜树幼苗生长及喜树碱积累的影响[J]. 四川林业科技, 2015, 36(2): 98-101,14. doi: 10.16779/j.cnki.1003-5508.2015.02.022

YANG Lang-sheng, PU Qing-yu, JIAN Kai. Effects of Different Phosphorus-applying Levels on Seedling Growth and Camptothecin Accumulation in Camptotheca acuminata Seedlings[J]. Journal of Sichuan Forestry Science and Technology, 2015, 36(2): 98-101,14. doi: 10.16779/j.cnki.1003-5508.2015.02.022

Citation:

YANG Lang-sheng, PU Qing-yu, JIAN Kai. Effects of Different Phosphorus-applying Levels on Seedling Growth and Camptothecin Accumulation in Camptotheca acuminata Seedlings[J]. Journal of Sichuan Forestry Science and Technology, 2015, 36(2): 98-101,14. doi: 10.16779/j.cnki.1003-5508.2015.02.022

不同施磷水平对喜树幼苗生长及喜树碱积累的影响

doi: 10.16779/j.cnki.1003-5508.2015.02.022

详细信息

四川农业大学，四川温江 611130

作者简介:
杨朗生(1960-),男,实验师,主要从事植物培育研究.E-mail:425926870@qq.com

基金项目:
四川农业大学2009年双支计划项目(34270002)资助。
中图分类号: Q946.88

Effects of Different Phosphorus-applying Levels on Seedling Growth and Camptothecin Accumulation in Camptotheca acuminata Seedlings

More Information

Sichuan Agriculture University, Wenjiang 611130, China

摘要: 采用盆栽施肥的方法,研究了不同施磷水平(对照0 kg P·hm^-2、低磷42 kg P·hm^-2、中磷84 kg P·hm^-2、高磷168 kg P·hm^-2)对喜树当年实生幼苗生长及次生代谢物喜树碱积累的影响。结果表明:随着施磷水平的增加,喜树幼苗的苗高及叶、茎、根的干物质量均增加,且各施磷水平幼苗叶、茎、根的干物质量差异显著(p < 0.05)。在不同磷素水平下,幼苗叶、根、茎中的喜树碱含量均在低磷水平时出现最大值,并且低磷水平与对照间喜树碱含量差异显著(p < 0.05)。随着磷用量的增加,喜树全株及叶、茎的喜树碱总量持续增加,但喜树全株和叶在高磷与中磷水平间差异不显著。根中喜树碱总量在不同磷素水平差异显著,在中磷水平最高。由结果可知:磷可以促进喜树幼苗中喜树碱的合成,适当的低磷胁迫可以增加喜树幼苗中喜树碱含量。培育喜树碱原料林时,适宜的施磷水平应为中磷水平,幼苗喜树碱总量主要取决于喜树生物量的积累。
- 施磷;
- 喜树;
- 喜树碱;
- 含量;
- 积累
Abstract: A potted experiment with controlled fertilization supply was conducted to study the effects of different phosphorus-applying levels (P₀, 0 kg P·hm^-2; P_L, 42 kg P·hm^-2; P_M, 84 kg P·hm^-2; P_H, 168 kg P·hm^-2) on the growth of seedlings and camptothecin (CPT) accumulation in C. acuminata seedlings. The experiment results showed that the height and dry weight of C. acuminata seedlings would increase when phosphorus-applying level increased. Under different levels of applying phosphorus, the dry weight of leaf, shoot and root of C. acuminata seedlings was significantly different (p < 0.05). The CPT content in leaf, shoot and root reached the highest level when phosphorus-applying level was P L. Compared with P₀, the CPT content in P_L increased significantly. The CPT amount in the whole seedling, leaf and shoot of C. acuminata increased gradually with the increase of phosphorus. But when phosphorus-applying level was higher than P_M, the increase of CPT amount was insignificant. The CPT amount in root reached the highest level when phosphorus-applying level was P_M. According to the results studied, proper deficient phosphorus stress could significantly enhance CPT content in C. acuminata seedlings. With a main objective to establish a C. acuminata seedling plantation for producing CPT, proper phosphorus level was P_M. CPT amount in seedlings was mainly decided by the accumulation of biomass of C. acuminata.
- Phosphorus fertilization;
- Camptotheca acuminata;
- Camptothecin;
- Content;
- Accumulation

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不同施磷水平对喜树幼苗生长及喜树碱积累的影响

doi: 10.16779/j.cnki.1003-5508.2015.02.022

四川农业大学，四川温江 611130

作者简介:
杨朗生(1960-),男,实验师,主要从事植物培育研究.E-mail:425926870@qq.com

收稿日期: 2015-01-06

基金项目:

四川农业大学2009年双支计划项目(34270002)资助。

中图分类号: Q946.88

关键词:

施磷 /
喜树 /
喜树碱 /
含量 /
积累

摘要: 采用盆栽施肥的方法,研究了不同施磷水平(对照0 kg P·hm^-2、低磷42 kg P·hm^-2、中磷84 kg P·hm^-2、高磷168 kg P·hm^-2)对喜树当年实生幼苗生长及次生代谢物喜树碱积累的影响。结果表明:随着施磷水平的增加,喜树幼苗的苗高及叶、茎、根的干物质量均增加,且各施磷水平幼苗叶、茎、根的干物质量差异显著(p < 0.05)。在不同磷素水平下,幼苗叶、根、茎中的喜树碱含量均在低磷水平时出现最大值,并且低磷水平与对照间喜树碱含量差异显著(p < 0.05)。随着磷用量的增加,喜树全株及叶、茎的喜树碱总量持续增加,但喜树全株和叶在高磷与中磷水平间差异不显著。根中喜树碱总量在不同磷素水平差异显著,在中磷水平最高。由结果可知:磷可以促进喜树幼苗中喜树碱的合成,适当的低磷胁迫可以增加喜树幼苗中喜树碱含量。培育喜树碱原料林时,适宜的施磷水平应为中磷水平,幼苗喜树碱总量主要取决于喜树生物量的积累。

English Abstract

Effects of Different Phosphorus-applying Levels on Seedling Growth and Camptothecin Accumulation in Camptotheca acuminata Seedlings

Sichuan Agriculture University, Wenjiang 611130, China

Received Date: 2015-01-06

Keywords:

Abstract: A potted experiment with controlled fertilization supply was conducted to study the effects of different phosphorus-applying levels (P₀, 0 kg P·hm^-2; P_L, 42 kg P·hm^-2; P_M, 84 kg P·hm^-2; P_H, 168 kg P·hm^-2) on the growth of seedlings and camptothecin (CPT) accumulation in C. acuminata seedlings. The experiment results showed that the height and dry weight of C. acuminata seedlings would increase when phosphorus-applying level increased. Under different levels of applying phosphorus, the dry weight of leaf, shoot and root of C. acuminata seedlings was significantly different (p < 0.05). The CPT content in leaf, shoot and root reached the highest level when phosphorus-applying level was P L. Compared with P₀, the CPT content in P_L increased significantly. The CPT amount in the whole seedling, leaf and shoot of C. acuminata increased gradually with the increase of phosphorus. But when phosphorus-applying level was higher than P_M, the increase of CPT amount was insignificant. The CPT amount in root reached the highest level when phosphorus-applying level was P_M. According to the results studied, proper deficient phosphorus stress could significantly enhance CPT content in C. acuminata seedlings. With a main objective to establish a C. acuminata seedling plantation for producing CPT, proper phosphorus level was P_M. CPT amount in seedlings was mainly decided by the accumulation of biomass of C. acuminata.