Indah, Humairoh (2025) IDENTIFIKASI MORFOLOGI CENDAWAN Colletotrichum spp. PENYEBAB PENYAKIT ANTRAKNOSA PADA BUAH CABAI. S1 thesis, Universitas Malikussaleh.

	Text cover.pdf Download (39kB)
	Text ABSTRACT.pdf Download (288kB)
	Text bab 1.pdf Download (305kB)
	Text DAFTAR PUSTAKA.pdf Download (330kB)
	Text full text.pdf Restricted to Registered users only Download (5MB)

Abstract

ABSTRACT Anthracnose caused by Colletotrichum spp., is a major disease in chili (Capsicum annuum L. and Capsicum frutescens L.) that can significantly reduce yield. This study aimed to characterize Colletotrichum spp. isolates from chili fruits in lowland and highland areas, determine their optimum growth temperature, and assess pathogenicity. The research was conducted from February to July 2025 at the Plant Pests and Diseases Laboratory, Malikussaleh University. Six isolates were obtained using the direct plating method on Potato Dextrose Agar (PDA) and incubated at 16°C, 24°C, and 32°C. Morphological identification included macroscopic (colony color, shape, texture) and microscopic (conidial shape, conidiophores) observations. Pathogenicity tests followed Koch’s postulates. Isolates displayed distinct morphological variation. Growth was generally optimal at 24°C, though some isolates grew best at 32°C, while 16°C suppressed growth. The BDR isolate had the shortest incubation period (3 days), while RDR and RDT isolates showed the highest disease incidence (100% at 5 days). NDR, BDT, and NDT had the longest incubation period (13 days). These findings highlight morphological diversity, temperature-dependent growth, and varying virulence among Colletotrichum spp. isolates, providing essential information for developing targeted anthracnose management strategies in chili cultivation. Keywords: growth temperature, highland, lowland, morphology, pathogenicity

Item Type:	Thesis (S1)
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian > 54211 - Jurusan Agroekoteknologi
Depositing User:	Indah Humairoh
Date Deposited:	13 Oct 2025 03:49
Last Modified:	13 Oct 2025 03:49
URI:	https://rama.unimal.ac.id/id/eprint/16642

Actions (login required)

View Item