Effect of Microbial Agents Dress Seeds on Peanut Soil-borne Diseases and Yield

doi:10.16409/j.cnki.2095-039x.2021.06.020

Abstract

Abstract: In order to explore the effects of microbial agents on peanut root diseases and yield, we selected 100 billion CFU/mL Bacillus amyloliquefaciens, 20 billion CFU/mL Paenibacillus polymyxa, 100 million CFU/g fungal biocontrol strains (TB) and 25% fludioxoni, by seed dressing to carry out the field efficacy test. Six treatments were set: 100 billion CFU/mL B. amyloliquefaciens, 20 billion CFU/mL P. polymyxa, 100 million CFU/g fungal biocontrol strains, 100 billion CFU/mL B. amyloliquefaciens + 100 million CFU/g fungal biocontrol strains, 20 billion CFU/mL P. polymyxa + 100 million CFU/g fungal biocontrol strains, and 25% fludioxoni. The experimental varieties was No.8 Luhua. All of the tested agents had certain effects on peanut yield increase, and peanut root rot and Sclerotium blight. The seedling emergence rate, yield increase rate were the highest by 100 billion CFU/mL B. amyloliquefaciens + 100 million CFU/g fungal biocontrol strains (TB), which were 94.35% and 23.15%, respectively. Thirty days after seedling emergence, the control efficiency on peanut root rot was 76.95%. And after 60 days, the control efficiency on peanut root rot and Sclerotium rolfsii reached 83.54% and 83.88%. That has high application prospect on agricultural green prevention and control technology extension.

Key words: microbial agents, peanut, dress seeds, peanut root rot, Sclerotium rolfsii Sacc

CLC Number:

S476

ZHAO Yanli, GUO Li, HUI Xianghai, WANG Xianghui, XU Ling, GUAN Xiumin, ZHAO Zhonghua. Effect of Microbial Agents Dress Seeds on Peanut Soil-borne Diseases and Yield[J]. Chinese Journal of Biological Control, 2021, 37(6): 1250-1255.

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