The effects of nitrogen and phosphorus fertilization on nutrient resorption in female and male Populus cathayana

IF 3.4 3区 生物学 Q1 PLANT SCIENCES
Plant Biology Pub Date : 2026-07-13 Epub Date: 2026-06-02 DOI:10.1111/plb.70236
J. Xiao, J. Wu, W. Liu, C. Guo, L. Yu
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引用次数: 0

Abstract

施氮磷肥对东北杨雌、雄养分吸收的影响。
衰老叶片(脱落前)对养分的吸收延长了养分在植物体内的停留时间,促进了养分的循环,对植物的生存和生长起着至关重要的作用。虽然一些研究已经记录了氮肥或磷肥对养分吸收的响应,但氮磷肥联合施用是有限的,特别是在雌雄异株植物中。研究了氮磷肥及氮磷肥配施对中国白杨雌雄植株生物量积累与分配、养分吸收、光合氮磷利用效率和叶片生态性状的影响。氮肥和磷肥处理提高了雌雄植株的生物量积累和光合能力,但降低了根冠比和氮素和磷的再吸收效率。雌雄植株的NRE与总生物量呈负相关,与根冠比呈正相关。雄性植株的NRE与叶片厚度、叶面积质量和叶脉密度呈正相关,而雌性植株的PRE仅与叶脉密度呈正相关。雌性植株光合氮利用效率随叶片厚度、叶面积质量和叶脉密度的增加而降低。而两性光合磷素利用效率与这些性状呈显著正相关。研究结果表明,植物养分吸收可能受生物量积累与分配、叶片生态性状和光合氮磷利用等因素的调控,有助于进一步认识植物养分获取与利用机制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Plant Biology
Plant Biology 生物-植物科学
CiteScore
8.20
自引率
2.60%
发文量
109
审稿时长
3 months
期刊介绍: Plant Biology is an international journal of broad scope bringing together the different subdisciplines, such as physiology, molecular biology, cell biology, development, genetics, systematics, ecology, evolution, ecophysiology, plant-microbe interactions, and mycology. Plant Biology publishes original problem-oriented full-length research papers, short research papers, and review articles. Discussion of hot topics and provocative opinion articles are published under the heading Acute Views. From a multidisciplinary perspective, Plant Biology will provide a platform for publication, information and debate, encompassing all areas which fall within the scope of plant science.
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