UJI RESISTENSI KLON-KLON INTRODUKSI TERHADAP PENYAKIT GUGUR DAUN Pestalotiopsis sp. DI LABORATORIUM

نویسندگان

چکیده

Tanaman karet (Hevea brasiliensis) berasal dari negara Brazil. Pohon pertama kali hanya tumbuh di Amerika Selatan. Perkebunan Indonesia mulai diperkenalkan sejak tahun 1864, yaitu Hofland mendirikan perusahaan perkebunan Tanah Panunukan dan Ciasem, Jawa Barat. Serangan yang diakibatkan oleh penyakit Pestalotiopsis sp. menunjukkan bercak cokelat pada daun adanya batas jelas antara bagian dengan masih sehat. Daun terinfeksi gugur sebelum waktunya. Umumnya terserang berat adalah tanaman sudah menghasilkan tidak terawat. Penelitian bertujuan untuk mengetahuai tingkat resistensi beberapa klon introduksi PB 217, 260, 330, 340, RRIC 100, IRR 220 GT 1 terhadap dilakukan Laboratorim Proteksi Balai Sungai Putih menggunakan Rancangan Acak Lengkap (RAL) non faktorial. Hasil penelitian bahwa pengamatan 8 hari setelah inokulasi (hsi) intensitas serangan tertinggi ditemukan 217 sebesar 89,9%6 89,96%, sedangkan terendah terdapat 81,64%.

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ژورنال

عنوان ژورنال: Jurnal Agro Estate

سال: 2021

ISSN: ['2580-0957', '2656-4815']

DOI: https://doi.org/10.47199/jae.v5i2.93