Asrori, Samsul Huda (2014) Ketahanan Beberapa Galur Dan Varietas Padi (Oryza Sativa L.) Terhadap Serangan Virus Tungro. Sarjana thesis, Universitas Brawijaya.
Abstract
Penelitian uji ketahanan tanaman padi terhadap penyakit tungro dilakukan di Rumah kaca Fakultas Pertanian Universitas Brawijaya. Penelitian ini dilakukan dengan pengamatan intensitas serangan virus tungro pada beberapa galur dan varietas padi yang selanjutnya dilakukan penilaian intensitas kerusakan, masa inkubasi, tinggi tanaman dan jumlah daun. Data hasil persentase serangan penyakit tungro dan pengamatan pertumbuhan tanaman pada setiap galur dan varietas padi dilakukan perhitungan indek jumlah masing-masing variabel dengan metode Castillo dkk, 1978 (dalam Heroetadji, 1983). Kemudian digolongkan sesuai katagori ketahanan terhadap penyakit tungro. Gejala yang dimunculkan dari hasil percobaan, masing-masing tanaman uji sangat beragam setelah tanaman diinokulasi penyakit tungro. Gejala tungro yang dimunculkan adalah berubahnya daun menjadi warna kekuningan dan daundaun yang baru tumbuh memendek serta jumlah anakan berkurang. Hasil percobaan uji ketahanan dari lima galur dan tujuh varietas padi, ditemukan satu varietas padi dengan katagori Resistance (R) yaitu Varietas Inpari13 dengan rata-rata persentase kerusakan 20,74%, masa inkubasi virus 16 hari setelah inokulasi (HSI), tinggi tanaman 46,67 cm dan jumlah daun 8,67 helai. Tanaman uji yang menunjukkan persentase kerusakan tertinggi adalah Galur P90 dengan nilai rata-rata persentase kerusakan 41,73%, masa inkubasi 10 HSI, tinggi tanaman 46,33 cm dan jumlah daun 8,33 helai. Dengan demikian, pada penelitian ini varietas yang ditemukan mempunyai ketahanan terhadap serangan virus tungro adalah Inpari13.
English Abstract
Research endurance test against tungro disease of rice plants in the greenhouse is done Brawijaya University. This study was conducted by observing the intensity of tungro virus in several strains and varieties of rice to subsequently damage intensity, incubation period, plant height and number of leaves. Data results and the tungro disease percentage of observations in each strain of plant growth and rice varieties calculation of the index number of each variable with the method of Castillo et al, 1978 (in Heroetadji, 1983). Then classified by category tungro disease resistance. Symptoms that appear from the results of the experiment, each test is very diverse crop plants inoculated after tungro disease. Tungro symptoms that appear are the changing colors of leaves become yellowish and new leaves grow shortened and reduced the number of tillers. The experimental results of the endurance test of five lines and seven varieties of rice, the rice varieties found in the category Resistance (R) is Inpari13 varieties with an average percentage of 20.74% damage, virus incubation period of 16 days after inoculation (DAI), plant height 46 , 67 leaves of 8.67 cm and the number of strands. Plant trials which showed the highest percentage of damage is strain P90 with an average value of 41.73% damage percentage, 10 HSI incubation period, plant height and number of leaves 46.33 cm 8.33 strands. Thus, in this study the varieties were found to have resistance to tungro virus attack is Inpari13.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FP/2014/222/051405396 |
| Subjects: | 600 Technology (Applied sciences) > 632 Plant injuries, diseases, pests |
| Divisions: | Fakultas Pertanian > Hama dan Penyakit Tanaman |
| Depositing User: | Hasbi |
| Date Deposited: | 01 Sep 2014 14:10 |
| Last Modified: | 10 Feb 2022 07:07 |
| URI: | http://repository.ub.ac.id/id/eprint/129680 |
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