Effects of an Integrated Microbiome Agent on Tomato Seed Germination and Plant Growth, and Its Control Efficiency against Bacterial Wilt

doi:10.16409/j.cnki.2095-039x.2019.06.018

Abstract

Abstract: The integrated microbiome agent is a new type of soil amendment for continuous cropping obstacle, which was manufactured by using the microbial fermentation bed of pig raising as a fermentation tank. In this study, the effect of the integrated microbiome agent extract with different dilution ratio on tomato seed germination was analyzed by using indoor Petri dish method. Compared to sterile water control, the extract with 100 dilution ratio had significant higher of seed germination index (33.98) and vigor index (65.26), while the extract with less than 50 dilution ratio significantly inhibited seed germination percentage, germination index and vigor index (P<0.05). Meanwhile, the effect of the integrated microbiome agent with different dosage on tomato plant growth and its control efficiency against bacterial wilt were also tested. The results showed that the integrated microbiome agent with low dosage (<60%) could improve plant growth, while that with high dosage (>80%) could inhibit plant growth. Compared to sterile water control, the treatment of adding 40% of integrated microbiome agent could increase plant height, stem diameter and root length with 13.77%, 26.00% and 79.51%, respectively. The root activity for adding 40% of integrated microbiome agent was 31.15μg/g/h, which was significant higher than that for sterile water control (24.72 μg/g/h) (P<0.05). The result of biological test also showed that the control efficiency of the integrated microbiome agent addition was increased by the increasing dosage. The control efficiency was above 65% for the dosage more than 40%, and the dosage of 100% had the highest control efficiency of 77.37%. Based on the assessments of grow promotion, control efficiency and cost, the dosage of 40% was suggested for using the integrated microbiome agent.

Key words: integrated microbiome agent, seed germination, bacterial wilt, tomato

CLC Number:

S476

ZHENG Xuefang, LIU Bo, ZHU Yujing, WANG Jieping, ZHANG Haifeng, CHEN Qianqian, CHEN Yanping, LEI Min. Effects of an Integrated Microbiome Agent on Tomato Seed Germination and Plant Growth, and Its Control Efficiency against Bacterial Wilt[J]. Chinese Journal Of Biological Control, 2019, 35(6): 908-914.

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