Ketahanan Beberapa Varietas Padi Rawa Lebak terhadap Penyakit Hawar Upih yang Disebabkan oleh Rhizoctonia solani

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)
    Divisions: Faculty of Agriculture > Department of Plant Protection
    Depositing User: Nukmal Hakim
    Date Deposited: 31 Jul 2017 10:52
    Last Modified: 31 Jul 2017 10:52
    URI: http://eprints.unsri.ac.id/id/eprint/7400

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