PENGENDALIAN PENYAKIT LAYU BAKTERI Ralstonia solanacearum (E.F.Smith) Yabuuchi et al PADA TANAMAN CABAI

Liswarni, Yenni and Khairul , Ujang (2010) PENGENDALIAN PENYAKIT LAYU BAKTERI Ralstonia solanacearum (E.F.Smith) Yabuuchi et al PADA TANAMAN CABAI. Project Report. Lembaga Penelitian Unand. (Unpublished)

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Abstract

The objective of the research was to evaluate the effect of crop rotation patterns and multiple cropping system with non host spesies in reducing bacterial wilt disease incidence in infested soil. Three crop rotation pattems tested were: (red pepper - maize - red pepper), (red pepper - cabbage - red pepper), and (red pepper - shallot - red pepper), the multiple cropping systems evaluated were: (maize among red pepper), (cabbage among red pepper, and (shallot among red pepper). As supporting data, population R. solanacearum after treatrnents and yield of red pepper were assessed. The results showed that crop rotation pattern such as (red pepp�r- maizn- red pepper), and multiple cropping system (maize among red pepper), prolonged incubation period (9,6 daD and (9,5 dat), and decreased disease incidence (48,6%) and (39,9yo), respectively. Population of the pathogen decreased by (2,4) and (l,l) log cfu/g soil. As the result, yield of the red pepper increased by (44,1%) and (37,8%), respectively, compared to the control. Key word : rotation, multiplecropping, R. solanacearum, red pepper,maize, cabbage, shallot

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