Jalaweni, SafiraCandra (2016) Pengaruh Aplikasi Plant Growth Promoting Rhizobacteria (Pgpr) Terhadap Infeksi Chrysanthemum Mild Mottle Virus (Cmmv), Pertumbuhan, Dan Produksi Tanaman Krisan (Chrysanthemum Sp.). Sarjana thesis, Universitas Brawijaya.
Abstract
Krisan atau seruni (Chrysanthemum sp.) termasuk komoditas florikultura dengan nilai ekonomi tinggi dan memiliki potensi besar untuk dikembangkan. Budidaya krisan tidak lepas dari kendala penyakit yang menyebabkan penurunan produksi salah satunya adalah Chrysanthemum mild mottle virus (CMMV) yang menyebabkan gejala rusaknya bunga, tanaman kerdil, dan malformasi. Pengendalian CMMV masih menggunakan insektisida yang bertujuan untuk menekan populasi serangga vektornya. Untuk mengurangi penggunaan insektisida, maka diperlukan alternatif pengendalian yang lebih aman. Upaya pengendalian yang saat ini sedang dikembangkan adalah Plant Growth Promoting Rhizobacteria (PGPR). Bacillus subtilis, Pseudomonas fluorescens, dan Azotobacter sp. merupakan rizobakteri yang biasa digunakan sebagai PGPR karena memiliki peranan yang penting dalam mengendalikan serangan pathogen, memacu pertumbuhan, dan produksi. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh pemberian PGPR isolat B. subtilis, P. fluorescens, Azotobacter sp., dan kombinasinya terhadap masa inkubasi, intensitas serangan CMMV, pertumbuhan, dan produksi pada tanaman krisan. Penelitian dilaksanakan di Laboratorium Penyakit, Jurusan Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Brawijaya, Malang dan rumah kawat Universitas Widyagama Malang mulai bulan Juni 2016 sampai dengan September 2016. Rancangan penelitian menggunakan Rancangan Acak Lengkap (RAL) 9 perlakuan. P0+: Kontrol positif (tanpa pemberian PGPR, dengan inokulasi virus); P0-: Kontrol negatif (tanpa pemberian PGPR, tanpa inokulasi virus); P1: Inokulasi virus + PGPR isolat B. subtilis; P2: Inokulasi virus + PGPR isolat P. fluorescens; P3: Inokulasi virus + PGPR isolat Azotobacter sp.; P4: Inokulasi virus + PGPR isolat B. subtilis + P. fluorescens; P5: Inokulasi virus + PGPR isolat B. subtilis + Azotobacter sp.; P6: Inokulasi virus + PGPR isolat P. fluorescens + Azotobacter; P7: Inokulasi virus + PGPR isolat P. fluorescens + B. subtilis + Azotobacter sp. Berdasarkan hasil penelitian, diketahui bahwa tanaman krisan yang diberi perlakuan PGPR tiga kombinasi yaitu P. fluorescens + B. subtilis + Azotobacter sp. menunjukkan hasil yang berbeda nyata dengan perlakuan yang lain. Setelah dikombinasikan, P. fluorescens + B. subtilis + Azotobacter sp. mampu memberikan hasil terbaik dalam hal menunda masa inkubasi CMMV, menekan intensitas serangan CMMV, serta meningkatkan pertumbuhan dan produksi tanaman krisan.
English Abstract
Chrysanthemum (Chrysanthemum sp.) including floriculture commodities with high economic value and has great potential to be developed. Chrysanthemum cultivation can not be separated from pests and diseases, one of them is Chrysanthemum mild mottle virus (CMMV). Virus can caused a broken flowers, dwarf, and malformation. CMMV control is still focused on vector control. Necessary efforts to reduce impact of insecticide. The control effort that are currently being developed is a Plant Growth Promoting Rhizobacteria (PGPR). Bacillus subtilis, Pseudomonas fluorescens, and Azotobacter sp. used as PGPR because it has an important role in controlling pathogens, spur growth, and production. The purpose of the research is to know the effect of PGPR isolates of B. subtilis, P. fluorescens, Azotobacter sp., and the combinations against incubation period, intensity of the attacks CMMV, growth, and production of the chrysanthemum plant. Research was conducted at the Laboratory of Disease, Department of Plant Pests and Diseases, Faculty of Agriculture, University of Brawijaya, Malang and wire houses Widyagama University of Malang starting in June 2016 until September 2016. The research design using a completely randomized design (RAL) 9 treatments. P0+: Positive Control (without the granting of PGPR, with the inoculation of the virus); P0-: Negative Control (without the granting of PGPR, without inoculation of the virus); P1: CMMV + B. subtilis; P2: CMMV + P. fluorescens; P3: CMMV + Azotobacter sp.; P4: CMMV + B. subtilis + P. fluorescens; P5: CMMV + B. subtilis + Azotobacter sp.; P6: CMMV + P. fluorescens + Azotobacter sp.; P7: CMMV + P. fluorescens + B. subtilis + Azotobacter sp. Based on this research, it is known that chrysanthemum treated with PGPR three combinations (P. fluorescens + B. subtilis + Azotobacter sp.) showed significantly different results with other treatments. After combined, capable of providing the best results in terms of delaying the incubation period, pressing attacks of CMMV, as well as the growth and production of chrysanthemum.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FP/2016/986/051700144 |
| Subjects: | 600 Technology (Applied sciences) > 632 Plant injuries, diseases, pests |
| Divisions: | Fakultas Pertanian > Hama dan Penyakit Tanaman |
| Depositing User: | Kustati |
| Date Deposited: | 11 Jan 2017 09:41 |
| Last Modified: | 22 Oct 2021 01:42 |
| URI: | http://repository.ub.ac.id/id/eprint/131989 |
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