Efficacy Trichoderma asperellumCB-Pin-01 and Calcium Silicate to Seed Germination and Control Stem Rot Caused by Sclerotium rolfsii in Capsicum annuum cv. ‘Bangchang’

Abstract

The effect of Trichoderma was combined with Ca2SiO4 to seed germination and control rotten causes by Sclerotium on Capsicum annuum cv.‘Bangchang’ were investigated. 1) Study effect Trichoderma with Ca2SiO4 on seed germination was observed. The experiment was composted of control (T1), seeds were soaked in Trichoderma suspension at 5 (T2) and 10 (T3) g/L, seeds were soaked in Trichoderma suspension at 5 and 10 g/L combined with Ca2SiO4 solution
1 g/L (T4) and (T5), respectively and seeded were soaked in Ca2SiO4 solution 1 g/L (T6). The results showed that seeds were early days to emergence and high germination index in Trichoderma suspension at 5 g/L higher than 10 g/L. However, Trichoderma suspension with Ca2SiO4 increased percentage of colonization root of seedling 37.5-50% compared with control. 2) The effect Trichoderma with Ca2SiO4 to control stem rotten causes by Sclerotium in green house experiments. The experiment was 4 treatments control (T1), planting media combined Trichoderma 1 kg/100 kg planting media (T2), planting media combined Trichoderma 1 kg/100 kg planting media with Ca2SiO4 20 kg/rai (T3) and planting media combined Ca2SiO4 20 kg/rai (T4). The results showed Trichoderma 1 kg/100 kg planting media with Ca2SiO4 at 20 kg/ rai
gave 40% survival seedling rate compared with control. In addition it was found that Trichoderma populations 1.23 x 106 CFU/ g soil around root survival seedling after treated with Sclerotium.