Increasing Production and Quality of Chrysanthemum Cut Flowers Through the Application Biological Agents

Abstract

This research is entitled to increase the production and quality of chrysanthemum cut flowers through the application of biological agents, with the aim of knowing the dosage of Trichoderma sp. and the concentration of Beauveria bassiana and its interaction on chrysanthemum cut flowers. The research method used factorial randomized block design in the field in a green house. This study uses two factors, namely: the first factor, the dose of Trichoderma sp consists of 3 levels each: 0.25 tonnes ha.-1 , 0.50 ton ha-1, and 0.75 ton ha-1. The second factor of Beauveria bassiana consists of 3 levels, namely: 15 g/l, 30 g/l , and 45 g/l. Treatment of Trichoderma sp. very significant effect (P <0.01) on all observed variables. The highest economic weight of fresh flowers and the lowest intensity of pest attack occurred in the treatment dose of Trichoderma sp 1.0 ton ha-1that isamounting to 85.97 g and 25.19% when compared to the lowest treatment. The treatment of Beauveria bassiana concentration had a significant effect (P <0.05) on all observed variables, had a very significant effect (P <0.01) on the maximum plant height and flower stalk height. Treatment concentration of Beauveria bassiana 45 g / l produce the highest economic weight of fresh flowers and the lowest intensity of disease attack of 79.55 g and 42.08% when compared to the lowest treatment.