Characterization of Blendok Disease (Botryodiplodia theobromae Pat.) on Pummelo (Citrus grandis L. Osbeck) in Bali

Mahardika, Ida Bagus Komang and Risa Andriani, Anak Agung Sagung Putri and Mudra, Luh Komang Sulasmini (2021) Characterization of Blendok Disease (Botryodiplodia theobromae Pat.) on Pummelo (Citrus grandis L. Osbeck) in Bali. In: WARDS 2020, 21 December 2020, Denpasar-Bali, Indonesia.

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Abstract

Pummelo in Balinese speaking is called Jerungga, Jeruti, Muntis, Juuk Saba, Juuk Bona or Juuk Gede. Morphologically and genetically, pummelo in Bali is known to be 5 (five) types of cultivars. The main cause of the decline in the population of pummelo plants in Bali is due to infection with blendok disease caused by the fungus Botryodiplodia theobromae Path. Characterization of the pathogen causing blendok disease is needed to determine the characteristics and pathogenicity of the fungus in pummelo plants. This is useful for determining how to control it effectively. The results showed that the pathogen of blendok disease in Bali was the fungus Botryodiplodia theobromae which had a gray color in the early stages of growth. This fungus has a shape like cotton and has abundant air between the micelles. The conidium is oval, one insulated, dark in color and the exospores have pathways. On the first day, the area of B. theobromae colonies was 1.13 cm2. Furthermore, on the second day to the fifth day experienced a rapid growth rate that reached 75.46 cm2. Growth rate, the fungus B. theobromae grows faster than the control fungus which is often referred to as the biological agent Trichoderma atroviride and Gliocladium sp.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: citrus grandis l osbeck; blendok disease; botryodiplodia theobromae pat
Subjects: H Social Sciences > H Social Sciences (General)
Depositing User: EAI Editor IV
Date Deposited: 21 May 2021 06:32
Last Modified: 21 May 2021 06:32
URI: https://eprints.eudl.eu/id/eprint/3608

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