北方设施栽培条件下氮素水平对辣木幼苗生长的影响

doi:10.7525/j.issn.1673-5102.2019.01.007

植物研究 ›› 2019, Vol. 39 ›› Issue (1): 54-60.doi: 10.7525/j.issn.1673-5102.2019.01.007

北方设施栽培条件下氮素水平对辣木幼苗生长的影响

徐海军^1,2, 程薪宇¹, 王晓飞¹, 关向军¹

1. 黑龙江省科学院大庆分院, 大庆 163319;
2. 东北林业大学森林植物生态学教育部重点实验室, 哈尔滨 150040

收稿日期:2018-09-03 出版日期:2019-01-15 发布日期:2019-01-31
通讯作者: 关向军 E-mail:xiangjun_guan@163.com
作者简介:徐海军(1979-),男,副研究员,博士研究生,主要从事植物栽培及植物营养学研究。
基金资助:
黑龙江省科学院科学研究基金项目（KY2016DQ01）

Effects of Different Nitrogen Level on Growths of Moringa oleifera Seedling under Northern Facilities of China

XU Hai-Jun^1,2, CHENG Xin-Yu¹, WANG Xiao-Fei¹, GUAN Xiang-Jun¹

1. Daqing Branch of Heilongjiang Academy of Sciences, Daqing 163319;
2. Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040

Received:2018-09-03 Online:2019-01-15 Published:2019-01-31
Supported by:
Heilongjiang Academy of Sciences Scientific Research Fund(KY2016DQ01)

摘要/Abstract

摘要： 为了明确辣木幼苗速生期氮素需求规律，在北方设施条件下，通过设置5个氮素水平处理，研究施氮对辣木幼苗株高、地径生长及其叶片N、P、K养分含量、色素含量及光合特性等方面的变化特征。结果显示，随着氮素水平增加，辣木株高、地径、叶片N、P、chla、类胡萝卜素、总色素含量及光量子效率（Q）呈先上升后下降的变化趋势，光补偿点（Lcp）呈先下降后上升趋势；株高生长与叶片P及chla显著相关，地径与暗呼吸速率（RD）及叶片K含量显著相关；当氮素水平在30 g·株^-1（N₃）时，辣木生长速度最快，植株养分状况较好、光能利用率最佳。

关键词: 辣木(Moringa oleifera), 设施栽培, 氮素水平, 幼苗生长量, 光合特征

Abstract: In order to clarify the rule of Moringa oleifera for nitrogen demand on fast-growing period, the experiment was carried out under five nitrogen level gradients applied on Moringa seedling, and to study the difference of characteristics on the growth of height, ground diameter, the contents of N, P, K in leaf, the contents of blade pigment and photosynthetic characteristics. The result showed that the height, ground diameter, N, P, chla, total pigment, carotenoid in leaf and photo-quantum efficiency rose first and descended later accompanied with nitrogen level increasing, while the light compensation point showed the contrary. Plant height growth was significantly correlated with leaf P and chla, and ground diameter was significantly correlated with dark respiration rate and leaf K content. When the nitrogen level was in 30 g·ind.^-1(N₃), M.oleifera seedling growth was the fastest, the plant nutrient status was better, and the utilization rate of light was the best.

Key words: Moringa oleifera, facility cultivation, nitrogen level, growth of seedling, photosynthetic characteristics

中图分类号:

徐海军, 程薪宇, 王晓飞, 关向军. 北方设施栽培条件下氮素水平对辣木幼苗生长的影响[J]. 植物研究, 2019, 39(1): 54-60.

XU Hai-Jun, CHENG Xin-Yu, WANG Xiao-Fei, GUAN Xiang-Jun. Effects of Different Nitrogen Level on Growths of Moringa oleifera Seedling under Northern Facilities of China[J]. Bulletin of Botanical Research, 2019, 39(1): 54-60.

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北方设施栽培条件下氮素水平对辣木幼苗生长的影响

Effects of Different Nitrogen Level on Growths of Moringa oleifera Seedling under Northern Facilities of China

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