Efeito de diferentes formas de aplicação de trichoderma na produção de mudas de beterraba

Abstract

Beetroot is an important vegetable for food, having a good acceptance due to its sweet taste. The production of seedlings is an important step in beet cultivation and studying ways to optimize production efficiency is important, especially with a view to making the seedling more able to face the adverse conditions found in the field. In this context, the objective of this research was to evaluate the influence of the different forms of application of Trichoderma in the production process of beet seedlings. The experiment was carried out in the agricultural greenhouse of the UFFS Chapecó campus. The cultivar used was Chata do Egypt and the Trichoderma strain used was ESALQ-1306 The treatments used were: no application of Trichoderma harzianum (control) application of Trichoderma harzianum in seed treatment , in the substrate at sowing and 7 days after sowing (DAS). Seedling emergence, shoot height, number of leaves/seedling, root length, dry mass of shoots and roots of seedlings were evaluated. The results obtained were subjected to analysis of variance and comparison of means (p<0.05). The application of Trichoderma generated a difference in all analyzed variables, providing a better development. Thus, it is concluded that the application of Trichoderma harzianum cepa ESALQ-1306 in the substrate on the sowing day provided a better result in the production of seedlings of beet cultivar Chata do Egypt, as it presented good results in seedling emergence, seedling height and number of leaves, greater growth and mass accumulation in roots.