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Effect of Different Mulching Practices on Bacterial Community Composition and Fruit Quality in a Citrus Orchard

文献类型： 外文期刊

作者： Yang, Lei 1 ; Wang, Min 1 ; Li, Shuang 1 ; Yu, Jianjun 1 ; Chen, Yang 2 ; Yang, Haijian 1 ; Wang, Wu 1 ; Chen, Hao 1 ; Hong, Lin 1 ;

作者机构： 1.Chongqing Acad Agr Sci, Fruit Tree Res Inst, Chongqing 401329, Peoples R China

2.Chongqing Acad Agr Sci, Biotechnol Res Inst, Chongqing 401329, Peoples R China

关键词： citrus; mulching; bacterial community; fruit quality; microbial function

期刊名称：AGRICULTURE-BASEL （ 影响因子：3.3； 五年影响因子：3.5 ）

ISSN：

年卷期： 2023 年 13 卷 10 期

页码：

收录情况： SCI

摘要： Citrus fruit, the most abundant global fruit, is primarily concentrated in China. Mulching techniques have demonstrated a favorable effect on the soil's hydrothermal environment, resulting in enhanced plant growth, yield, and quality. Nevertheless, the impact of mulching on the soil microbiome and fruit quality of Beni Madonna tangor (Citrus nanko x C. amakusa) remains unknown. This study aimed to examine the impact of different mulching techniques, namely traditional flat planting (CK), reflective film mulching (RM), black film mulching (BM), corn stalk mulching (CS), green film mulching (GM), and transparent plastic film mulching (TM), on the bacterial diversity, composition, cooccurrence networks, and bulk soil assembly during the ripening stage of Beni Madonna tangor. The various treatments employed in this study exhibited distinct impacts on fruit quality and soil temperature and humidity. Through comprehensively evaluating fruit quality and soil properties, it was found that RM treatment had the best effect, while CK treatment was the worst. The mulching results in a significant decrease in the Shannon indexcompared to the control group. Specifically, mulching with RM, CS, and GM led to a significant increase in Chloroflexi abundance (p < 0.05). Furthermore, the interaction complexity between bacteria was found to be lower under GM and TM treatments compared to the other mulching treatments. At the genus level, Chloroflexi exhibited a positive correlation with total soluble solid (TSS) and Vitamin C (Vc) contents, however, GP13 showed a converse result. It was determined that Chloroflexi, with a high abundance of RM, promoted an improvement in soil and fruit quality. Ultimately, it can be concluded that various mulching techniques yield distinct impacts on both the soil bacterial composition and citrus quality, with these effects being intricately linked to the core biota's functionalities within each treatment.

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