THE EFFECTIVENESS OF Trichoderma harzianum UPN16 SECONDARY METABOLITES AND CHITOSAN AT VARIOUS STORAGE TEMPERATURES FOR INHIBITING THE GROWTH OF Colletotrichum sp. ON POSTHARVEST CHILI FRUIT

Hanikaf, Uliyatul Muhmiroh (2023) THE EFFECTIVENESS OF Trichoderma harzianum UPN16 SECONDARY METABOLITES AND CHITOSAN AT VARIOUS STORAGE TEMPERATURES FOR INHIBITING THE GROWTH OF Colletotrichum sp. ON POSTHARVEST CHILI FRUIT. Other thesis, UPN Veteran Yogyakarta.

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Abstract

Attack of Colletotrichum sp. in postharvest chilies is a crucial cause of the decline
in the quality of chili yields. As an alternative from using chemical fungicides,
secondary metabolites extracted from Trichoderma harzianum can be used, which
include: enzymes, hormones, antibiotics, and toxins which are important in
controlling plant diseases. Besides that, using chitosan as a coating can also
protect the chili fruit from physical and mechanical damage. The temperature of
5-10oC is also influential in suppressing the growth of microorganisms such as
pathogenic fungi. The hypothesis put forward in this study is that the application
of Trichoderma harzianum UPN16 (MS UPN16) and chitosan combined with
storage at 5-10oC can suppress the growth rate of Colletotrichum sp. on
postharvest chilies. The research was conducted at the UPN "Veteran"
Yogyakarta, on Plant Protection Laboratory from September 2022 to January
2023. The research was conducted in vitro and in vivo according to Completely
Randomized Design (CRD) with 1 treatment factor with the attached treatment
design. Each treatment was repeated 3 times. Application of various treatment
was carried out once after inoculation of Colletotrichum sp. on cayenne pepper
(Capsicum frutescens L.). Observations were made on day 1 to day 14 to see the
treatment's inhibition of the growth of Colletotrichum sp. The results showed that
the application of secondary metabolites of Trichoderma harzianum and chitosan
placed at 5-10oC could increase the growth inhibit level of Colletotrichum sp.,
whether placed in mixed or separate formulations.
Keywords: Cayenne pepper (Capsicum frutescens L.), Secondary metabolite
Trichoderma harzianum UPN16, Chitosan, Storage temperature, Colletotrichum
sp

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Cayenne pepper (Capsicum frutescens L.), Secondary metabolite Trichoderma harzianum UPN16, Chitosan, Storage temperature, Colletotrichum sp
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Faculty of Medicine, Health and Life Sciences > School of Biological Sciences
Depositing User:	A.Md Sepfriend Ayu Kelana Giri
Date Deposited:	03 Jul 2023 08:11
Last Modified:	03 Jul 2023 08:11
URI:	http://eprints.upnyk.ac.id/id/eprint/36274

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