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POTENSI CENDAWAN RIZOSFER CABAI (Capsicum annuum L.) SEBAGAI PENGENDALI PENYAKIT ANTRAKNOSA (Colletotrichum sp.) SECARA IN VITRO

NINGRUM, INE SEPTIA (2025) POTENSI CENDAWAN RIZOSFER CABAI (Capsicum annuum L.) SEBAGAI PENGENDALI PENYAKIT ANTRAKNOSA (Colletotrichum sp.) SECARA IN VITRO. S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.

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Abstract

Anthracnose disease in chili plants causes significant production losses. This disease is caused by the fungus Colletotrichum sp. an eco-friendly control strategy involves the use of rhizosphere fungi as biological control agents. This study aimed to isolate rhizosphere fungi from chili plant roots and to analyze their antagonistic potential against Colletotrichum sp. through in vitro testing. The research was conducted using exploratory and experimental methods, applying a Completely Randomized Design (CRD) with seven treatments and four replications. Treatments included one control (CRC 0) and six rhizosphere fungal isolates (CRC1, CRC2, CRC3, CRC4, CRC5, and CRC6). Parameters observed were inhibition percentage, macroscopic morphological characterization, and pathogenicity test. From 11 isolated fungi, nine exhibited antagonistic activity, and six isolates were selected for the second stage of screening. The results showed that isolate CRC6 demonstrated the highest inhibition percentage against Colletotrichum sp. at 64,60%. This isolate exhibited distinct macroscopic features and was confirmed to be non-pathogenic to plants based on pathogenicity tests. These findings suggest that the rhizosphere fungus CRC 6 holds strong potential as a sustainable biological control agent for Colletotrichum sp.

Item Type: Thesis (S1)
Contributors:
ContributionContributorsNIP/NIM
Thesis advisorFIRNIA, DEWI197805302003122002
Thesis advisorYENNY, RATNA FITRY197111192003122001
Additional Information: Penyakit antraknosa pada tanaman cabai menyebabkan kerugian produksi yang signifikan. Penyakit ini disebabkan oleh jamur Colletotrichum sp. strategi pengendalian yang ramah lingkungan melibatkan penggunaan jamur rizosfer sebagai agen pengendalian hayati. Penelitian ini bertujuan untuk mengisolasi jamur rizosfer dari akar tanaman cabai dan menganalisis potensi antagonisnya terhadap Colletotrichum sp. melalui pengujian in vitro. Penelitian dilakukan dengan menggunakan metode eksploratif dan eksperimental, menerapkan Rancangan Acak Lengkap (RAL) dengan tujuh perlakuan dan empat ulangan. Perlakuan meliputi satu kontrol (CRC 0) dan enam isolat jamur rizosfer (CRC1, CRC2, CRC3, CRC4, CRC5, dan CRC6). Parameter yang diamati adalah persentase penghambatan, karakterisasi morfologi makroskopis, dan uji patogenisitas. Dari 11 jamur yang diisolasi, sembilan menunjukkan aktivitas antagonis, dan enam isolat dipilih untuk penyaringan tahap kedua. Hasil penelitian menunjukkan bahwa isolat CRC6 menunjukkan persentase penghambatan tertinggi terhadap Colletotrichum sp. sebesar 64,60%. Isolat ini menunjukkan ciri-ciri makroskopis yang khas dan terkonfirmasi non-patogen terhadap tanaman berdasarkan uji patogenisitas. Temuan ini menunjukkan bahwa jamur rizosfer CRC 6 memiliki potensi kuat sebagai agen pengendali hayati berkelanjutan untuk Colletotrichum sp.
Subjects: S Agriculture > S Agriculture (General)
Divisions: 04-Fakultas Pertanian > 54211-Program Studi Agroekoteknologi
Depositing User: Ine Septia Ningrum
Date Deposited: 17 Nov 2025 02:47
Last Modified: 17 Nov 2025 02:47
URI: http://eprints.untirta.ac.id/id/eprint/56131

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