Samosir, Lydia Sarah Inez and Luqman Qurata Aini,, S.P., M.Si., Ph.D. (2024) Pengaruh Pemberian Plant Growth-Promoting Bacteria asal Platycerium wandae terhadap Pertumbuhan dan Intensitas Penyakit Tanaman Kailan (Brassica oleracea var. alboglabra). Sarjana thesis, Universitas Brawijaya.
Abstract
Tanaman kailan merupakan komoditas sayuran Asia teratas serta banyak dikonsumsi oleh kalangan menengah ke atas karena kaya akan vitamin A serta mengandung lutein dan zeaxanthin yang baik untuk kesehatan. Namun, produksi kailan di Indonesia mengalami penurunan produksi beberapa tahun terakhir sehingga belum dapat mencukupi kebutuhan pasar lokal. Adapun kendala yang mempengaruhi rendahnya produktivitas kailan adalah adanya cekaman abiotik dan biotik yang menyebabkan menurunnya kualitas tanah karena terjadinya pencucian unsur hara di dalam tanah serta produksi tanaman kailan yang sangat tergantung pada penggunaan pupuk anorganik dan pestisida kimia yang dapat menimbulkan dampak negatif seperti penurunan kualitas serta kuantitas produksi. Solusi yang pernah dilakukan adalah dengan menggunakan pupuk anorganik dan PGPR. Namun solusi pupuk anorganik tersebut dapat memicu resistensi dan juga kekonsistenan PGPR juga terkadang berubah saat di lapangan. Terdapat teknologi hayati yang masih dikembangkan yaitu penggunaan agens antagonis berupa bakteri endofit. Platycerium wandae merupakan tanaman hias yang hidupnya menempel pada tumbuhan inang dan dapat memperoleh nutrisi sendiri tanpa mengambil dari tanaman inangnya. Penelitian ini bertujuan untuk memperoleh hasil mengenai pengaruh pemberian PGPB asal isolat Platycerium wandae dalam meningkatkan pertumbuhan dan menekan kejadian penyakit pada tanaman kailan. Penelitian ini dilaksanakan pada bulan September hingga Desember 2023. Lahan riset pengaruh pemberian PGPB asal Platycerium wandae terhadap pertumbuhan dan kesehatan tanaman pada tanaman kailan dilakukan di Lahan Pertanian Lily Harvest, Desa Tulungrejo, Kecamatan Bumiaji, Kota Batu, Jawa Timur dan Laboratorium Penyakit Tumbuhan, Jurusan Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Brawijaya. Adapun tahapan penelitian meliputi peremajaan isolate bakteri endofit Platycerium wandae, persiapan media tanam, pembibitan, dan persiapan lahan, pemberian PGPB dari 7 isolat Platycerium wandae, perawatan tanaman kailan, dan pengamatan parameter tumbuh (Tinggi tanaman, jumlah daun, berat basah tanaman, berat basah akar tanaman, panjang akar, berat kering tanaman, berat kering akar) dan kesehatan tanaman berdasarkan hasil penekanan kejadian penyakit di lapangan. Data dianalisis menggunakan secara statistic menggunakan anova dan uji lanjut menggunakan Duncan Multiple Range Test (DMRT) dengan signifikansi 5% menggunakan software Ms Excel 2019 dan SPSS ver 25. Hasil penelitian menunjukkan bahwa pemberian PGPB asal Platycerium wandae memberikan pengaruh nyata terhadap parameter pertumbuhan tanaman yaitu pada perlakuan P2 (Pw 1c), P4 (Pw2c), P6 (Pw 4b), P7 (Pw 4c), dan P8 (Pw 4d) serta parameter kesehatan tanaman yaitu pada perlakuan P3 (Pw 1d), P4 (Pw 2c), P5 (Pw 4a), P6 (Pw 4b), dan P8 (Pw 4d).
English Abstract
Kailan plant is a top Asian vegetable commodity and is widely consumed by the middle and upper class because it is rich in vitamin A and contains lutein and zeaxanthin which are good for health. However, the production of kailan in Indonesia has decreased in recent years so that it has not been able to meet the needs of the local market. The constraints that affect the low productivity of kailan are abiotic and biotic stresses that cause a decrease in soil quality due to leaching of nutrients in the soil and the production of kailan plants that are highly dependent on the use of inorganic fertilizers and chemical pesticides which can have negative impacts such as a decrease in quality and quantity of production. The solution that has been done is to use inorganic fertilizers and PGPR. However, the inorganic fertilizer solution can trigger resistance and also the consistency of PGPR also sometimes changes when in the field. There is a biological technology that is still being developed, namely the use of antagonistic agents in the form of endophytic bacteria. Platycerium wandae is an ornamental plant that lives attached to the host plant and can obtain its own nutrients without taking from the host plant. This study aims to obtain results regarding the effect of PGPB application from Platycerium wandae isolates in increasing growth and suppressing disease incidence in kailan plants. This research was conducted from September to December 2023. The research field of the effect of PGPB from Platycerium wandae on plant growth and health in kailan plants was carried out at Lily Harvest Farm, Tulungrejo Village, Bumiaji District, Batu City, East Java and Plant Disease Laboratory, Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Brawijaya. The stages of the study include the rejuvenation of Platycerium wandae endophytic bacterial isolates, preparation of planting media, seedlings, and land preparation, application of PGPB from 7 Platycerium wandae isolates, care of kailan plants, and observation of growth parameters (plant height, number of leaves, plant wet weight, plant root wet weight, root length, plant dry weight, root dry weight) and plant health based on the suppression of disease incidence in the field. Data were analyzed statistically using anova and further tests using Duncan Multiple Range Test (DMRT) with a significance of 5% using Ms Excel 2019 and SPSS ver 25 software. The results showed that the application of PGPB from Platycerium wandae had a significant effect on plant growth parameters, namely in the P2 (Pw 1c), P4 (Pw 2c), P6 (Pw 4b), P7 (Pw 4c), and P8 (Pw 4d) treatments and plant health parameters, namely in the P3 (Pw 1d), P4 (Pw 2c), P5 (Pw 4a), P6 (Pw 4b), and P8 (Pw 4d) treatments.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0524040025 |
| Divisions: | Fakultas Pertanian > Hama dan Penyakit Tanaman |
| Depositing User: | Unnamed user with username nova |
| Date Deposited: | 07 Feb 2024 05:14 |
| Last Modified: | 07 Feb 2024 05:14 |
| URI: | http://repository.ub.ac.id/id/eprint/215851 |
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