基于形态、产量和遗传性状的阴凉环境下大豆(Glycine max)栽培品种整体选育方法

IF 3.7 2区 农林科学 Q1 AGRONOMY Journal of Agronomy and Crop Science Pub Date : 2024-09-16 DOI:10.1111/jac.12759
Wellington Ferreira Campos, João Paulo Ribeiro Leite, Fábio Santos Matos, Leonardo Barros Dobbss, Alessandro Nicoli, Anderson Barbosa Evaristo
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引用次数: 0

摘要

光合有效辐射的减少会影响农林业和间作系统中大豆的生长和产量。因此,本报告探讨了 16 个大豆栽培品种在田间条件下对遮荫程度的反应。多方面和相对重要性分析表明,蒸腾直径和株高是选择耐阴栽培品种的基本形态标记,二者与产量成分高度正相关。此外,大豆栽培品种对遮荫的反应各不相同,某些基因型表现出不同的耐荫水平,这也使得对遗传变异的估计显示出遗传成分在对遮荫的反应中的强烈参与。利用蒸腾直径和株高以及两个产量成分进行多变量和聚类分析,确定了四个更耐阴的大豆栽培品种和两个敏感的大豆栽培品种。因此,本报告深入探讨了不同光照条件下的大豆栽培问题,为将形态和产量标记整合到以耐荫性为重点的育种计划中奠定了坚实的基础,并指导了未来的作物改良工作,以在气候变化背景下实现最佳和可持续的产量及抗逆性。
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A Holistic Approach to the Selection of Soybean (Glycine max) Cultivars for Shade Environments Based on Morphological, Yield and Genetic Traits

The reduction of photosynthetically active radiation impacts the growth and productivity of soybean in agroforestry and intercropping systems. Thus, this report explored the responses of 16 soybean cultivars submitted to shade levels in field conditions. Multi-faceted and relative importance analyses revealed that the steam diameter and plant height are fundamental morphological markers for selecting shade-resilient cultivars, both were high and positively correlated to yield components. Moreover, the responses to shade varied among soybean cultivars, with certain genotypes demonstrating distinct tolerance levels, which allowed also the estimative of genetic variance that revealed strong participation of genetic components in responses to shade. Multivariate and clustering analysis using steam diameter and plant height in combination with two yield components resulted in the identification of four soybean cultivars more tolerant to shade environments and two sensible. Therefore, this report provides insights into soybean cultivation under varying light conditions, provides a robust foundation for the integration of morphological and yield markers in breeding programmes focused on shade tolerance and guides future endeavours in crop improvement for optimal and sustainable yield and resilience in the climate change context.

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来源期刊
Journal of Agronomy and Crop Science
Journal of Agronomy and Crop Science 农林科学-农艺学
CiteScore
8.20
自引率
5.70%
发文量
54
审稿时长
7.8 months
期刊介绍: The effects of stress on crop production of agricultural cultivated plants will grow to paramount importance in the 21st century, and the Journal of Agronomy and Crop Science aims to assist in understanding these challenges. In this context, stress refers to extreme conditions under which crops and forages grow. The journal publishes original papers and reviews on the general and special science of abiotic plant stress. Specific topics include: drought, including water-use efficiency, such as salinity, alkaline and acidic stress, extreme temperatures since heat, cold and chilling stress limit the cultivation of crops, flooding and oxidative stress, and means of restricting them. Special attention is on research which have the topic of narrowing the yield gap. The Journal will give preference to field research and studies on plant stress highlighting these subsections. Particular regard is given to application-oriented basic research and applied research. The application of the scientific principles of agricultural crop experimentation is an essential prerequisite for the publication. Studies based on field experiments must show that they have been repeated (at least three times) on the same organism or have been conducted on several different varieties.
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