Evaluation of the control ability of Phytophthora sp. to damage on chili plant (Capsicum annuum L.) using Arbuscular Mycorrhiza Fungi (AMF) product
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Abstract
The Arbuscular Mycorrhizal Fungi (AMF) form a reciprocal symbiosis with approximately 80% of terrestrial plant species, including various agricultural crops. They provide essential nutrients to host plants, improving drought tolerance, salinity resistance, and disease resistance. This study aimed to evaluate the ability of AMF to control Phytophthora disease in chili plants grown in a net house. Eight treatments were applied, including two controls (without AMF), five with AMF supplementation at different formulation ratios (30%, 40%, 50%, 60%, and 70%), and one using a commercially available AMF product. The results showed that AMF enhanced plant growth and development while reducing the negative effects of Phytophthora sp. on chili plants. Compared to the control, the 70% AMF treatment exhibited the lowest disease incidence and severity indexes at 17, 24, 31, and 38 days. The corresponding disease index and disease rate during the observation period were 0.8%, 1.2%, 1.8%, and 2.3% for the index, and 4.0%, 5.4%, 8.9%, and 9.9% for the rate, respectively. Furthermore, 24 days after treatment, the 70% AMF treatment demonstrated a 70.1% disease prevention effect.
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