Abstract
One of the diseases that often found in sorghum plants is anthracnose disease caused by Colletotrichum sp. The purposed of this study was to determine the effect of adding micro fertilizer and the use of several sorghum genotypes on the intensity of anthracnose disease. The study was conducted in Sukanegara, Tanjung Bintang, South Lampung in April 2017 - February 2018 and at the Laboratory of Plant Diseases and Pests, Faculty of Agriculture, University of Lampung. The treatments were arranged using a randomized block design in a split plot design (3 times replications), the main plot was micro nutrients (with micro addition and without micro addition) and 15 subgroups of sorghum genotypes (Numbu, Samurai 1, GH3, UPCA, GH4, P / I WHP, GH6, Super 2, GH13, P / F 51-93-C, Super 1, GH5, Mandau, GH7, and Talaga Bodas). The results showed that the addition of "ZincMicro" micro fertilizers to sorghum plants did not affect the intensity of anthracnose disease, however there were differences in the intensity of anthracnose diseases between sorghum genotypes. Numbu Genotype, GH 3, and GH 13 were relatively more resistant to anthracnose disease than the other genotypes.
Highlights
Salah satu penyakit yang sering ditemukan pada tanaman sorgum adalah penyakit antraknosa yang disebabkan oleh Colletotrichum sp
The results showed that the addition of “ZincMicro” micro fertilizers to sorghum plants did not affect the intensity of anthracnose disease, however there were differences in the intensity of anthracnose diseases between sorghum genotypes
“Aktivitas antioksidan dan imunomodulator serealia non- beras”
Summary
Pada hasil pengamatan di lapangan ditemukan gejala penyakit antraknosa pada bagian daun yang mengalami nekrosis yang berupa bintik-bintik kecil pada daun (Gambar 1A), berbentuk lingkaran atau elips berwarna cokelat kemerahan, kemudian bintik tersebut membesar lalu menyatu sehingga daun mengalami nekrosis lanjut (Gambar 1B). Gambar 1 : Gejala penyakit antraknosa pada daun tanaman sorgum, yaitu muncul bintik-bintik kecil pada daun (A), bintik kemudian membesar dan menyatu sehingga daun mengalami nekrosis atau terserang antraknosa (B). Didapatkan dari hasil isolasi tersebut serupa bentuknya yaitu berbentuk oval atau silinder menurut Frederiksen (1986) (Gambar 3B) yang mana bentuk demikian menunjukan karakteristik dari Colletotrichum sp. Pengaruh Penambahan Pupuk Mikro terhadap Keterjadian dan Keparahan Penyakit Antraknosa pada Tanaman Sorgum. Perlakuan penambahan pupuk mikro tidak berpengaruh terhadap intensitas penyakit antraknosa baik pengamatan I dan pengamatan II. Pengaruh Genotipe terhadap Keterjadian dan Keparahan Penyakit Antraknosa pada Tanaman Sorgum
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