EFEKTIVITAS CENDAWAN ENDOFIT ASAL AKAR TANAMAN KENTANG dalam MEDIA KOMPOS KULIT KOPI untuk MENEKAN PERKEMBANGAN PENYAKIT HAWAR DAUN KENTANG (Phytophtora infestans)
Abstract
Abstrak, Penyakit hawar daun kentang disebabkan oleh jamur Phytophthora infestans merupakan salah satu penyakit penting pada tanaman kentang. Penurunan produksi kentang karena serangan jamur P. infestans dapan mencapai 90%. Sampai saat ini serangan patogen P.infestans merupakan masalah penting dan belum ada fungisida yang benar-benar efektif terhadap penyakit tersebut. Penelitian ini bertujuan untuk menguji efektivitas cendawan endofit asal akar tanaman kentang dalam menekan perkembangan penyakit hawar daun kentang P.infestans yang dilaksanakan di University Farm Stasiun Riset Bener Meriah (UFBM) Universitas Syiah Kuala desa Tunyang Kecamatan Timang Gajah Kabupaten Bener Meriah dari bulan Mei sampai dengan Oktober 2014. Metode yang digunakan adalah metode eksperimen. Hasil penelitian ini menunjukkan bahwa cendawan endofit asal akar tanaman kentang dalam media kompos kulit kopi dapat menekan perkembangan penyakit hawar daun yang disebaban oleh P. infestans, cendawan endofit asal akar tanaman kentang dalam media kompos kulit kopi. Hasil terbaik terdapat pada isolat cendawan endofit B9 dengan intensitas serangan patogen P. infestans 48,00 %, intensitas kerusakan tanaman kentang akibat patogen P. infestans dan 2,60 %, bobot umbi sehat 332,4 gram
Endophytic Fungus effectiveness Origin Root Crops Potatoes in Compost Media Skin Diseases Coffee to Suppress Development Potato Leaf blight (Phytophtora infestans)
Abstract,
Potato leaf blight caused by Phytophthora infestans is one of the important disease of potato. Decline in potato production due to P. infestans fungus attack can both reach 90% P.infestans pathogens is an important issue and there are no fungicides were effective against the disease until now. This study aimed to test the effectiveness of endophytic fungus origin from roots of potato plants in suppressing the development of potato blight disease cause by P.infestans. The University Farm Research Station (UFBM) UNSYIAH located in the village Tunyang Timang Gajah. District of Bener Meriah Aceh. The experimental methods were used in this experiment. The results indicate that the endophytic fungus origin from roots of potato plants in coffee bark compost medium can suppress the development of late blight disease that caused by P. infestans. The best results were shown on isolates of endophytic fungi B9 which disease 48.00%, disease severity 2.60%, healthy tuber weight 332.4 grams
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PDFDOI: https://doi.org/10.17969/agrista.v23i1.16664
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