Identification of Fungi Associated with Potato Tuber Causes Dry Rot in Lembang

DOI

10.2991/978-94-6463-028-2_46How to use a DOI?

Keywords

Fusarium oxysporum; Fusarium solani; Soilborne

Abstract

Dry rot, caused by various species of Fusarium, is one of the most important fungal storage rots affecting potatoes. Infection of tubers occurs through wounds during planting, mechanical harvesting, and grading into size bands. The research aim was to identify the fungus carried by the tuber and its virulence that have been carried out at the Indonesian Vegetable Research Institute (IVegRI) Lembang, West Java from May 2020 until July 2021. Isolation and virulence tests were conducted at the Laboratory of Mycology at IVegRI. The observation variables were the morphological character of the fungus, Koch’s Postulate test, and its virulence. In total, 8 isolates of Fusarium spp. were recovered and belonged to Fusarium oxysporum and Fusarium sp. In Koch’s Postulate test, all isolates showed necrotic symptoms (rot volume) with varying necrotic areas. The necrotic areas of each isolate were Spudy 2 (1.81 cm), AR08 (1.17 cm), Atlantik 3 (1.12 cm), Sangkuriang 2 (1.06 cm), Atlantik 7 (without symptoms, 0.71 cm), Spudy 3 (0.44 cm), Papita 1 (0.34 cm), Sangkuriang 1 (0.40 cm), and Control (0.34) respectively. From the necrotic area value, it can be seen that Spudy 2 isolate had the highest virulence. We have identified four F. oxysporum species from eight isolates and symptoms of dry rot found either ini the health or the sick tuber.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Novi Irawati
AU  - Asma Sembiring
PY  - 2022
DA  - 2022/12/12
TI  - Identification of Fungi Associated with Potato Tuber Causes Dry Rot in Lembang
BT  - Proceedings of the International Symposium Southeast Asia Vegetable 2021 (SEAVEG 2021)
PB  - Atlantis Press
SP  - 443
EP  - 449
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-028-2_46
DO  - 10.2991/978-94-6463-028-2_46
ID  - Irawati2022
ER  -