首页|Effects of Soil Texture on the Growth of Young Apple Trees and Soil Microbial Community Structure Under Replanted Conditions

Effects of Soil Texture on the Growth of Young Apple Trees and Soil Microbial Community Structure Under Replanted Conditions

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A two-year field experiment was carried out in order to study the occurrence degree and mechanism of apple replant disease (ARD) in the apple orchards with different soil textures. So we can adopt appropriate control measures according to the severity of ARD. Healthy two-year-old seedlings with consistent growth were selected, of which the root stock was T337 and the scion was Yanfu 3. There were significant differences in biomass between methyl bromide fumigation and replanted treatments, and the difference was the largest in clay loam, followed by sandy loam, and loam, which verified ARD in clay loam was most serious, followed by sandy loam and loam. Based on high-throughput sequencing of fungi in soil samples, fungal richness and diversity were the highest in clay loam, followed by sandy loam, and loam. The relative abundance of Fusarium in SX, SL, FX, FL, WX and WL was 7.33％, 19.32％, 2.70％, 4.24％, 10.71％ and 23.87％, respectively. Based on Real-time quantitative analysis, there were significant differences in the number of Fusarium oxysporum and Fusarium solani between methyl bromide fumigation and replanted treatments, i.e., clay loam>sandy loam>loam. Fusarium was the main pathogen causing ARD. This shows that ARD is the most serious under replanted clay loam condition. High-throughput sequencing technology was used to prove the difference in Fusarium was one of the important reasons for ARD under different soil textures. This technology provides a new idea for the prevention and control of ARD.

AppleApple replant diseaseFungi community structureSoil textureHigh-throughput sequencing

Yuefan Sheng、Haiyan Wang、Mei Wang、Hanhao Li、Li Xiang、Fengbing Pan、Xuesen Chen、Xiang Shen、Chengmiao Yin、Zhiquan Mao

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College of Horticultural Science and Engineering/State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, Shandong271018, China

College of Resources and Environment, Shandong Agricultural University, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Tai'an, Shandong 271018, China

research was supported by earmarked fund for National Modern Agro-industry Technology Research System of ChinaQingchuang Science and Technology Sup-port Project of Shandong Colleges and UniversitiesProject Supported by Taishan ScholarsShandong Province Agricultural Major Applied Tech-nology Innovation ProjectsNational Key Research and Development Program of ChinaNational Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaFruit Innovation Team in Shandong Province, China

Grant CARS-27Grant 2019KJF020Grant ts20190923Grant SD2019ZZ008Grant &nbsp2016YFD0201114Grant 31672104Grant SDAIT-06-07

2020

园艺学报(英文版)

园艺学报(英文版)

SCI
ISSN：
年,卷(期)：2020.6(3)
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