Muslim, A. and Permatasari, Rinda and Mazid, Abdul (2012) Ketahanan Beberapa Varietas Padi Rawa Lebak terhadap Penyakit Hawar Upih yang Disebabkan oleh Rhizoctonia solani. Jurnal Lahan Suboptimal, 1 (2). pp. 163-169. ISSN 2302-3015 (online) dan 2252-6188 (print)
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Abstract
The use ofhigh yielding varieties has in creased paddy yieldsinnon-tidal lowlands. However, paddy productivity often decreases dues heath blihgt diseasecaused by Rhizoctonia solani. The objective of this study was to determinesomenon-tidal swamprice varieties that are resistant to sheath blight. Response of paddy varieties to sheath blight was evaluated in the screen house using micro-chamber screening method, with paddy variety as treatment. Each treatment consisted of five varieties of paddy: Inpari 13, Indragiri, Mekongga, Inpara and Ciherang. The result showed that all of the varieties were infected by R. Solani. The lowlest level of severity occurred in Inpara 3 with the average score of 38.88% whereas the highest severity occurred in indragiri varietiy with the average score of 59.34%. Based on resistancy, none of the varieties tested showed resistant response. Moderately resistant response to sheath blight was indicated by Inpara 3, Mekongga, Ciherang ( disease index 3,5-4,0 ); whereas susceptible response was demonstrated by Inpari 13 and Indragiri ( disease index 5,3-5,5 ). The average incubation period of the pathogen R. Solani on Inpari 13, Indragiri and Mekongga was four days, Ciherang was five days and Inpara 3 was six days. There fore, none of the five varieties of non tidal lowland paddy tested in this reasearch wasresistant to sheath blight disease caused by R. Solani.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Variety of paddy, Rhizoctoniasolani, sheath blight |
| Subjects: | S Agriculture > S Agriculture (General) > S1-(972) Agriculture (General) |
| Divisions: | 05-Faculty of Agriculture > 54295-Plant Protection (S1) |
| Depositing User: | Nukmal Hakim |
| Date Deposited: | 10 Oct 2019 08:45 |
| Last Modified: | 10 Oct 2019 08:45 |
| URI: | http://repository.unsri.ac.id/id/eprint/10555 |
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