马钱子 SGSF043 对玉米生长促进和土壤酶活性的影响

Seeds Pub Date : 2024-04-16 DOI:10.3390/seeds3020016
Xu Zheng, Bo Zhang, Feng Shi, Yuanlong Chen, Xiumei Zhao
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引用次数: 0

摘要

为了进一步明确非核心 Metarhizium sp. Marquandomyces marquandii 对植物生长的促进作用,选择了实验室预筛选得到的 M. marquandii SGSF043 作为试验菌株,并采用浸种法进行了研究。研究了该菌株发酵液对玉米种子萌发、幼苗生长和根瘤土壤酶活性的影响。结果如下:在种子萌发试验中,M. marquandii SGSF043 发酵液对玉米种子萌发有一定的抑制作用,萌发率仅为 15%。将发酵液稀释 10 倍后,发芽率达到 97%。发芽试验后,稀释 10 倍和稀释 1000 倍的处理组都促进了玉米胚芽的生长。在田间小区试验中,根据幼苗生物量指标的综合评价,稀释 100 倍的溶液的促生长效果最好。与对照组相比,地上部鲜重增加了 127.13%。结果表明,M. marquandii SGSF043具有促进玉米生长和改善土壤环境的潜力,为M. marquandii在农田中的研究和应用提供了理论依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of Marquandomyces marquandii SGSF043 on Maize Growth Promotion and Soil Enzyme Activity
In order to further clarify the growth-promoting effect of the non-core Metarhizium sp. Marquandomyces marquandii on plants, M. marquandii SGSF043, which was obtained via pre-screening in the laboratory, was selected as a test strain and the seed soaking method was adopted. The effects of a fermentation broth obtained from this strain on the seed germination, seedling growth, and rhizosphere soil enzyme activity of maize were studied. The results were as follows: In seed germination tests, M. marquandii SGSF043 fermentation liquid had a certain inhibitory effect on corn seed germination, and the germination rate was only 15%. When the fermentation solution was diluted 10 times, the germination rate reached 97%. After the germination test, the growth of maize plumules was promoted in the groups treated with 10-times and 1000-times dilutions. In the field community experiment, based on the comprehensive evaluation of seedling biomass indicators, the solution diluted 100 times had the best growth-promoting effect. The aboveground fresh weight was increased by 127.13% compared with the control group. The results show that M. marquandii SGSF043 has the potential to promote the growth of maize and improve the soil environment, which provides a theoretical basis for the research on and the application of M. marquandii in farmland.
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