Non-Structural Carbohydrates Regulated by Nitrogen and Phosphorus Fertilization Varied with Organs and Fertilizer Levels
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Non‑Structural Carbohydrates Regulated by Nitrogen and Phosphorus Fertilization Varied with Organs and Fertilizer Levels in Moringa oleifera Seedlings Zhongtong Peng1,2 · Meixuan Chen1 · Zhijia Huang1 · Huiru Zou1 · Xiaolin Qin1 · Yaohong Yu1 · Yutao Bao1 · Shucai Zeng1 · Qifeng Mo1 Received: 8 May 2020 / Accepted: 11 September 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Moringa oleifera (moringa) is an important fodder tree species. Although several researches study the effects of fertilization on moringa growth, the response of non-structural carbohydrate (NSC) to nitrogen (N) and phosphorus (P) fertilization in moringa seedlings is poorly understood. Here, we employed a pot experiment to investigate the effects of N and P fertilization on NSC dynamics in moringa seedlings in southern China. The results showed that the moringa root NSCs were 427 mg g−1 in the control treatment (over 50% of the total NSCs, 739.8 mg g−1), while the leaf NSCs only stored about 10% of NSCs in the individual tree. Compared to the control treatment, the NSCs in leaf, stem, and root of moringa seedlings were greatly reduced by N and P fertilization, which could be explained by the dilution effects of increased biomass following fertilization. However, the magnitude of NSC change with fertilization varied with tissue and N & P application levels. Our results suggest that there is a trade-off between structural carbohydrates (SCs) and NSCs among different organs in morniga seedlings. As moringa seedlings may have specific nutrient acquiring strategies that differs from their adult tree, long-term and large-scale researches should focus on the effects and underlying mechanisms of fertilization on the trade-off between SC and NSC in seedling and the adult tree of moringa in future. Keywords Nutrient addition · Plant physiology · Carbon assimilation · Cultivation · Southern China Abbreviations NSCs Non-structural carbohydrates SCs Structural carbohydrates Electronic supplementary material The online version of this article (https://doi.org/10.1007/s00344-020-10228-8) contains supplementary material, which is available to authorized users. * Shucai Zeng [email protected] * Qifeng Mo [email protected] 1
Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Wushan Road No. 483, Tianhe District, Guangzhou 510642, People’s Republic of China
Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, People’s Republic of China
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Introduction Moringa oleifera Lam. (Moringa) is famous for its fastgrowth and multi-function traits. It is widely distributed and planted in the tropical, subtropical, and hot temperate regions throughout the world (Valdés-Rodríguez et al. 2018; Sánchez et al. 2006; Zheng et al. 2016). Nowad
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