Pengaruh Lama Perendaman dengan Berbagai Konsentrasi Trichoderma harzianum Terhadap Viabilitas dan Vigor Benih Cabai Kedaluwarsa (Capsicum annum L.)

Abstract, This research aims to determine the effect of soaking time and concentration of Trichoderma harzianum, as well as to determine the interaction between soaking time and treatment with various concentrations of Trichoderma harzianum on the viability and vigor of expired chili seeds. This research was carried out at the Seed Science and Technology Laboratory, Department of Agrotechnology, Faculty of Agriculture, Syiah Kuala University and the Plant Disease Laboratory, Department of Plant Protection, Faculty of Agriculture, Syiah Kuala University, Darussalam, Banda Aceh. This research starts from August to September 2023. This experiment was carried out using a factorial Completely Randomized Design (CRD) with 3 replications. There are two factors studied, namely soaking time (L), the second factor (K) is various concentrations of Trichoderma harzianum. The results of the research showed that the best soaking time was 12 hours, which was able to increase viability and the vigor of expired chili seeds is based on the vigor index parameters and growth simultaneity. The best concentration of Trichoderma harzianum is 20%, which is able to increase the viability and vigor of expired chili seeds based on the parameters of germination, vigor index, growth simultaneity and growth speed. The interaction was very real in the length of soaking and various concentrations of Trichoderma harzianum based on the vigor index parameters and the time needed to reach 50% (T50)