The Efficacy of Basil Leaf (Ocimum basilicum) Extract Against Leaf Spot Disease (Cercospora arachidicola) in Peanut
| Main Authors: | Meliyana, Rosita, Wardana, Rudi, Syarief, Mochamad |
|---|---|
| Format: | Article info application/pdf Journal |
| Bahasa: | ind |
| Terbitan: |
Politeknik Negeri Jember
, 2019
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| Subjects: | |
| Online Access: |
https://agriprima.polije.ac.id/index.php/journal/article/view/v3i1-d https://agriprima.polije.ac.id/index.php/journal/article/view/v3i1-d/pdf |
Daftar Isi:
- Cercospora arachidicola is a pathogen which causes leaf spot disease in peanut plants. The attack of leaf spot disease on peanut plants can significantly reduce the yields because the pathogen attacks during the process of filling pods. The use of synthetic pesticides in controlling plant diseases cause residual effect that endanger the environment. To reduce these negative impacts, it is necessary to protect plants with the use of phyto-pesticide. This study aims to determine the efficacy of basil leaf extract againts leaf spot disease (Cercospora arachidicola) in peanut. This research was carried out from November 2017 to February 2018, at the research area Baratan Village, Patrang District, Jember and Jember Polytechnic plant protection laboratory. This study used a non factorial randomized block design (RBD) method, in which there were 5 treatments, which consisted of control with synthetic fungicide 1 ml / L (P0), 25% basil leaf extract (P1), 50% basil leaf extract (P2), 75% basil leaf extract (P3), and 100% basil leaf extract (P4). The result showed that the efficacy of basil leaf extract againts leaf spot disease (Cercospora arachidicola) in peanut was not significantly different on the parameters of attack intensity, number of pods, wet weight of pods, and dry weight of peanut pods. The correlation test results showed an increased attack of leaf spot disease reducing the number of pods, wet weight of pods and dry weight of peanut pods.
- Cercospora arachidicola merupakan patogen yang menyebabkan penyakit bercak daun pada tanaman kacang tanah. Serangan penyakit bercak daun pada tanaman kacang tanah dapat menurunkan hasil akibat patogen yang menyerang pada saat pengisian polong. Penggunaan pestisida sintetik dalam pengendalian penyakit tanaman dapat menimbulkan efek residu yang membahayakan lingkungan. Untuk mengurangi dampak negatif tersebut diperlukan upaya perlindungan tanaman dengan penggunaan pestisida nabati. Penelitian ini bertujuan untuk mengetahui efikasi ekstrak daun kemangi terhadap penyakit bercak daun (Cercospora arachidicola) pada tanaman kacang tanah. Penelitian ini dilaksanakan pada November 2017 sampai Februari 2018 di lahan percobaan Desa Baratan, Kecamatan Patrang, Kabupaten Jember dan laboratorium perlindungan tanaman Politeknik Negeri Jember. Penelitian mengunakan rancangan acak kelompok (RAK) non faktorial 5 perlakuan dengan (P0) fungisida sintetik 1 ml/liter, ekstrak daun kemangi 25 % (P1), ekstrak daun kemangi 50% (P2), ekstrak daun kemangi 75 % (P3), dan ekstrak daun kemangi 100 % (P4) . Hasil uji anova pada penelitian menunjukkan bahwa efikasi ekstrak daun kemangi (Ocimum basilicum) terhadap penyakit bercak daun (Cercospora arachidicola) pada tanaman kacang tanah tidak berbeda nyata pada parameter intensitas serangan, jumlah polong, berat basah polong, dan berat kering polong kacang tanah. Peningkatan serangan Cercospora arachidicola berdampak dalam pengurangan hasil panen kacang tanah pada uji korelasi.