Effect of Antagonistic Microorganisms on the Growth and Yield of Melons cv. Konami Grown in Mae Hong Son Province
Keywords:
Fusarium wilt, disease index, musk melon, biological controlAbstract
This research aimed to investigate the effects of antagonistic microorganisms on the growth and yield of Konami melon (Cucumis melo L.) cultivated in Mae Hong Son Province, Thailand. The study was employed a Completely Randomized Design (CRD) and consisted of three treatment groups, each with 25 melon plants. Melon seeds were soaked in different treatments for 30 minutes before planting. The treatments included: Treatment 1 (Control, soaked in water), Treatment 2 (soaked and sprayed with Trichoderma asperellum (1×108 cfu/ml)), and Treatment 3 (soaked and sprayed with Bacillus subtilis (1×108 cfu/ml)). The results revealed that melon plants treated with Bacillus subtilis attained the highest height, of 198.27 centimeters. Melon plants treated with T. asperellum exhibited the widest and longest leaves of 23.40 and 27.10 centimeters, respectively. In terms of post-harvest melon quality, melons treated with T. asperellum gave the highest fruit circumference of 45.40 centimeters and the thickest flesh of 27.12 millimeters. Melons treated with B. subtilis yielded the highest fruit weight of 2.05 kilograms, had the highest soluble solids content at 12.20°Brix, and the densest flesh of 1.89 Newtons. Testing for control Fusarium wilt of Konami melons found that the control had the highest disease incidence level of 3.8, with a disease index of 95 percent. The treatment using T. asperellum and B. subtillus shower with disease at the level of 3.2, with a disease index of 80 percent. However, none of the treatment methods significantly differed in disease incidence level and index compared to the control.
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