PENGARUH AGENS HAYATI Gliocladium sp. TERHADAP INTENSITAS PENYAKIT LAYU Fusarium, PERTUMBUHAN DAN HASIL DUA VARIETAS BAWANG MERAH (Allium ascalonicum L.)

PRANOTO, WAHYU AJI (2019) PENGARUH AGENS HAYATI Gliocladium sp. TERHADAP INTENSITAS PENYAKIT LAYU Fusarium, PERTUMBUHAN DAN HASIL DUA VARIETAS BAWANG MERAH (Allium ascalonicum L.). Bachelor thesis, UNIVERSITAS MUHAMMADIYAH PURWOKERTO.

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Abstract

Shallots are high-value commodities. The production and export of shallots increase every year. However, the main obstacle to the development of shallots is the attack of wilting caused by the Fusarium oxysporum pathogen. Commonly, F. oxysporum wilt disease control is carried out by farmers with the application of synthetic pesticides. In contrast, excessive use of pesticides is not recommended because it is not economical and pollutes the environment. In addition, the use of single and continuous varieties can increase the susceptibility of these varieties to a pathogen. Therefore, it is necessary to do an alternative control that combines the dose of biological agents and different types of shallots varieties. This research aimed to investigate the effectiveness of the dosage of Gliocladium sp. on the intensity of Fusarium wilt disease growth and yield on two shallots varieties. This research was conducted during January to April 2019 in the Greenhouse of Faculty of Agriculture, Muhammadiyah University of Purwokerto. Eight combinations of treatment constructed in a Completely Random Design (RAL) format were tested in this research. Four dosages of Gliocladium sp. namely 0 g, 12 g, 24 g dan 36 g were applied. Meanwhile, the local Bauji varieties of Nganjuk and the Thai Tajuk were used as test plants. Seven growth and outcome variables were observed per 12 DAP for 60 days. The crop yield variables, incubation time, and attack intensity were observed at the end of the observation. Gliocladium sp. cultured on the rice media was inoculated according to the dose tested after the plant was 12 DAP. Whereas, the F. oxysporum was applied two days before the application of biological agents. The average difference between treatments was done by the analysis of variance. Normality and homogeneity tests were carried out before the two-factor ANOVA was applied. The Kruskal-Wallis test was used if both conditions were not met. DMRT follow-up tests at the 5% level were used as further tests. The results of this research indicated that there was an interaction between the dosages of Gliocladium sp. with the types of varieties. However, a single dose of 24 g generated the best results in growth, yield, incubation period, and lower disease intensity. The local Bauji variety of Nganjuk was the variety resistant to attacks. The combination of 24 g dose in the Thai Tajuk variety gave the best response on the number of leaves, leaf's wet weight, root's wet weight, leaf's dry weight, root's dry weight, the intensity of attacks, and the number of tubers. Meanwhile, the treatment without an agent on local Bauji variety of Nganjuk showed the best tuber's wet and dry weight.

Item Type: Thesis (Bachelor)
Uncontrolled Keywords: Gliocladium sp., Fusarium oxysporum, Shallot varieties
Subjects: S Agriculture > S Agriculture (General)
Divisions: Fakultas Pertanian dan Perikanan > Agroteknologi S1
Depositing User: Nur Hardiansyah
Date Deposited: 10 Mar 2022 04:29
Last Modified: 10 Mar 2022 04:29
URI: https://repository.ump.ac.id:80/id/eprint/10890

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