Pengaruh Konsentrasi Trichoderma harzianum Rifai. Terhadap Pertumbuhan Patogen Sclerotium rolfsii Sacc. Secara In Vitro

Anugerah, Era Rizqi (2023) Pengaruh Konsentrasi Trichoderma harzianum Rifai. Terhadap Pertumbuhan Patogen Sclerotium rolfsii Sacc. Secara In Vitro. Undergraduate thesis, Politeknik Negeri Jember.

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Abstract

Sclerotium rolfsii is a soil-borne pathogen that causes stem rot in various types of plants. Biological control can be a solution, namely by utilizing microbes that are antagonistic to the fungus Sclerotium rolfsii. One of the antagonistic fungi that can be used is Trichoderma harzianum. This study aims to determine the inhibitory power of Trichoderma harzianum against Sclerotium rolfsii in vitro. This study was conducted from September 2022 to December 2022 at the Jember State Polytechnic Plant Protection Laboratory using a non-factorial Complete Randomized Design (CRD). Treatment includes: T0: 0% (Aquades), T1: 4,835 × 109 cfu/ml, T2: 8,007 × 109 cfu/ml, T3: 9,685 × 109 cfu/ml, T4: 1,142 × 1010 cfu/ml, T5: 1,544 × 1010. Each treatment was repeated 3 times. Furthermore, the data were analyzed using anova, if it was significantly different, it was followed by a 5% LSD Test. The results of the percentage of inhibitory power in each treatment are, T0 = 25,20%, T1 = 45,00%, T2 = 45,20%, T3 = 50,00%, T 4= 66,00%, T5= 66,73%.

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