Effects of selenium on leaf traits and photosynthetic characteristics of eggplant.

IF 2.7 4区生物学 Q2 PLANT SCIENCES Functional Plant Biology Pub Date : 2025-02-01 DOI:10.1071/FP24292

Lu Zhang, Xiawei Zhao, Yan Wang, Xinyu Ma, Haolin Li, Chengzhang Zhao

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Abstract

The response of leaf traits and photosynthetic characteristics to selenium (Se) application reflects plant adaptation strategies for selenium-enhanced accumulation of photosynthetic products. This study selected eggplant as the research subject and conducted a field experiment to better understand these relationships. This study included three Se treatments, foliar sprays of 0.5mgL-1 (T1), 1mgL-1 (T2), and 1.5mgL-1 (T3), with tap water as the control (CK). The results revealed that T1 and T2 significantly improved leaf traits and photosynthetic characteristics compared to CK, while T3 had a negative effect. Regarding the leaf area-leaf thickness (LA-LT) trade-off relationship, the T2 treatment favoured LA, whereas the CK, T1, and T3 treatments favoured LT, with trade-off values of T3>T1>CK. Regarding the net photosynthetic rate-transpiration rate (Pn -Tr ) trade-off relationship, the CK treatment favoured Tr , whereas the T1, T2, and T3 treatments favoured Pn , with trade-off values of T2>T1>T3. In T1 and T2, the eggplant specific leaf area and Pn showed non-significant and highly significant positive correlations, respectively, and in CK and T3 showed non-significant and highly significant negative correlations, respectively. These results indicate that foliar application of Se at appropriate concentrations can increase crop productivity in semi-arid areas.

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硒对茄子叶片性状和光合特性的影响。

叶片性状和光合特性对硒的响应反映了植物对硒增强光合产物积累的适应策略。本研究以茄子为研究对象，进行了田间试验，以更好地了解这些关系。以自来水为对照（CK），叶片喷施0.5mg -1 （T1）、1mg -1 （T2）和1.5mg -1 (T3) 3个硒处理。结果表明，与对照相比，T1和T2处理显著改善了叶片性状和光合特性，而T3处理则有负作用。在叶面积-叶厚（LA-LT）权衡关系方面，T2处理有利于LA，而CK、T1和T3处理有利于LT，权衡值为T3>T1>CK。在净光合速率-蒸腾速率（Pn -Tr）权衡关系上，CK处理有利于Tr，而T1、T2和T3处理有利于Pn，权衡值为T2>T1>T3。在T1和T2，茄子比叶面积与Pn分别呈不显著和极显著正相关，在CK和T3分别呈不显著和极显著负相关。这些结果表明，在半干旱区，适当浓度的叶面施用硒可以提高作物产量。

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

Functional Plant Biology 生物-植物科学

CiteScore

5.50

自引率

3.30%

发文量

156

审稿时长

1 months

期刊介绍： Functional Plant Biology (formerly known as Australian Journal of Plant Physiology) publishes papers of a broad interest that advance our knowledge on mechanisms by which plants operate and interact with environment. Of specific interest are mechanisms and signal transduction pathways by which plants adapt to extreme environmental conditions such as high and low temperatures, drought, flooding, salinity, pathogens, and other major abiotic and biotic stress factors. FPB also encourages papers on emerging concepts and new tools in plant biology, and studies on the following functional areas encompassing work from the molecular through whole plant to community scale. FPB does not publish merely phenomenological observations or findings of merely applied significance. Functional Plant Biology is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science. Functional Plant Biology is published in affiliation with the Federation of European Societies of Plant Biology and in Australia, is associated with the Australian Society of Plant Scientists and the New Zealand Society of Plant Biologists.