[1]袁淑娜,涂寒奇,潘 剑,等.遮光对辣木幼苗生长及叶片矿质元素含量的影响[J].福建农林大学学报(自然科学版),2021,50(01):79-84.[doi:10.13323/j.cnki.j.fafu(nat.sci.).2021.01.011]
 YUAN Shuna,TU Hanqi,PAN Jian,et al.Effects of shading on the plant growth and leaf mineral elements contents of Moringa oteifera Lam[J].,2021,50(01):79-84.[doi:10.13323/j.cnki.j.fafu(nat.sci.).2021.01.011]
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遮光对辣木幼苗生长及叶片矿质元素含量的影响()
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福建农林大学学报(自然科学版)[ISSN:1671-5470/CN:35-1255/S]

卷:
50卷
期数:
2021年01期
页码:
79-84
栏目:
林业科学
出版日期:
2021-01-18

文章信息/Info

Title:
Effects of shading on the plant growth and leaf mineral elements contents of Moringa oteifera Lam
文章编号:
1671-5470(2021)01-0079-06
作者:
袁淑娜 涂寒奇 潘 剑 黄坚雄 郑定华 王 军 周立军
1.中国热带农业科学院橡胶研究所; 2.农业部儋州热带作物科学观测试验站; 3.中国热带农业科学院林下资源综合利用研究中心,海南 海口 571101
Author(s):
YUAN Shuna TU Hanqi PAN Jian HUANG Jianxiong ZHENG Dinghua WANG Jun ZHOU Lijun
1.Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences; 2.Danzhou Investigation & Experiment Station of Tropical Crops, Ministry of Agriculture; 3.Research Center for Utilization of Under-forest Resources, Danzhou, Hainan 571737, China
关键词:
辣木 遮阴 矿质养分 植株发育
Keywords:
Moringa oteifera Lam shading mineral element plant development
分类号:
S632.3
DOI:
10.13323/j.cnki.j.fafu(nat.sci.).2021.01.011
文献标志码:
A
摘要:
通过搭建遮阴棚设置5个遮光水平(遮光率分别为0、30%、50%、70%、90%),研究遮光率对辣木株高、茎粗、生物量分配及叶片矿质元素含量的影响.结果表明,30%~70%遮光率处理对辣木株高无显著影响,但茎粗显著低于全光照处理.90%遮光率处理辣木生长发育严重受限,株高和茎粗为对照植株的49.99%和30.45%,植株存活率为5%.遮光使辣木植株总生物量降低,但使辣木叶和茎生物量分配比增加.70%遮光率处理的辣木叶片Ca和Fe的含量最高,但与对照差异不显著.50%遮光率处理的Mg含量最高,比对照提高33.33%.辣木叶片Zn含量随着遮光率的增大而升高,在70%遮光率时最高.辣木叶片Cu含量随着遮光率的增大而降低,对照叶片Cu含量最高,各处理间差异达显著水平.因此,在不影响辣木植株正常发育的前提下,根据辣木种植目的要求,适度遮阴既可以增加辣木茎叶生物量,又有利于辣木叶片Ca、Mg、Mn和Zn的富集.
Abstract:
Five shading levels(0, 30%, 50%, 70% and 90%)were set up to study the effects of shading on plant height, stem diameter, biomass distribution and leaf mineral element content of Moringa oteifera Lam. Results indicated that 30%-70% shading treatments had no significant effect on the plant heights of M.oteifera, but stem diameters were decreased significantly compared with the control. Plant height and stem diameter under 90% shading treatment were down to 49.99% and 30.45% of the control, resulting in a survival rate of 5%. Shading lowered the total biomass of M.oteifera, but increased the biomass allocation ratios of leaves and stems. The treatment with 70% shading produced the highest leaf Ca and Fe contents, but had no significant difference compared with the control. The treatment with 50% shading produced leaves with the highest Mg content, being 33% higher than the control. Zinc content of M.oteifera leaves increased along with increased shading rates, and peaked under 70% shading treatment. On the contrary, Cu content of M.oteifera leaves decreased significantly when shading was intensified. Therefore, moderate shading was an effective way to increase the biomass and Ca, Mg, Mn and Zn accumulations in M.oteifera stems and leaves.

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备注/Memo

备注/Memo:
收稿日期:2020-04-24 修回日期:2020-06-02
基金项目:国家天然橡胶产业技术体系种苗扩繁与生产技术(CARS-33-YZ4),海南省自然科学基金项目(318QN270).
作者简介:袁淑娜(1982-),女,助理研究员.研究方向:胶园林下资源研究与利用.Email:yuanshuna@126.com.通信作者周立军(1973-),男,副研究员.研究方向:胶园林下资源研究与利用.Email:lijunzhzh@163.com.
更新日期/Last Update: 2021-01-15