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description Journal article public Jurnal Budidaya Pertanian

Efektivitas Limbah Cengkih dalam Menekan Perkembangan In Vitro Sclerotium Rolfsii, Jamur Penyebab Damping Off Kacang Tanah

Handry R. D. Amanupunyo, Nace E. Tahitu, Gratiana N. C. Tuhumury
Published 2021

Abstract

Various problems have caused the decline in peanut production, among others the low resistance of peanut plants to various diseases. One of the obstacles in peanut production is the attack of plant diseases, such as the fungus Sclerotium rolfsii Sacc. The use of plant-based insecticides can be an alternative to disease control in peanuts. This study aimed to obtain the appropriate and effective dose of clove leaves and flower stalks in suppressing the in vitro growth of the fungus S. rolfsii Sacc causing damping off in peanuts, and to test the effectiveness of clove leaves and flower stalks on the formation of sklerotia of the fungus. This study used ‘tuni’ clove powder from Waai Village, Salahutu District. This experimental study employed a completely randomized design (CRD) with 8 treatments and 3 replications. The results showed that the growth of the fungus S. rolfsii Sacc. was inhibited by clove flower stalk powder at a dose of 1.5 g per100 mL of PDA, which was indicated by the number of sklerotia formed of 13.67% and propagule weight of 0.12 g, followed by a dose of clove leaf powder of 1.5 g per100 mL PDA, with amount of sklerotia formed of 27.33% and propagule weight of 0.17 g. These results were statistically shown on the parameters: colony diameter, Sklerotia formation time, number of Sklerotia, and weight of propagules. Keywords: Clove powder, dosage, in vitro, Sclerotium rolfsii Sacc.  

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