BIOLOGICAL CONTROL ON THE QUALITY OF CAJANUS CAJAN (L) MILLSP SEEDS

Abstract

Biological control of pathogens in seeds has gained prominence as it is a promising alternative in the integrated management of diseases and has a beneficial effect on plant growth. Therefore, the objective of this study was to evaluate the potential of products based on Trichoderma spp. and Bacillus amyloliquefaciens in the control of fungi associated with Cajanus cajan (L.) Millsp seeds and in the initial growth of seedlings. Four commercial biological products Ecotrich® (Trichoderma harzianum) were used (60g/100kg contact); Quality® (Trichoderma asperellum) (200g/100kg immersion); Pardelha® (Trichoderma harzianum, Trichoderma asperallum, Bacillus amyloliquefaciens) (60g/100kg immersion) Shocker® (T. harzianum, B. amyloliquefaciens) (300g/100kg immersion). Seed treatment was also carried out with Captana fungicide (240g / 100 kg of seeds) and immersion in sterilized distilled water 100 ml. Biological seed control is effective in reducing the incidence of fungi and has antimicrobial activity similar to fungicides. Biological control reduced the incidence of fungi and did not affect the physiological quality of the seeds.