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Paper ID: 74

Disease Intensity of Moler and Yield Losses of Shollot cv. Bima Caused by Fusarium oxysporum f.sp. cepae in Brebes Central Java

Supyani1,2,3, S H Poromarto1,2,3, Supriyadi1,2,3, F I Permatasari1, D H Putri1, D T Putri1 and Hadiwiyono1,2,3

1Agrotechnology Department, Agricultural Faculty of Universitas Sebelas Maret

2Magister Program of Agronomy, Agricultural Faculty of Universitas Sebelas Maret

3Doctoral Porgram of Agricultural Sciences, Agricultural Faculty of Universitas Sebelas Maret


Brebes Central Java is one of the central production of shallot in Indonesia. In the latest years, shallot farmers in Brebes face a new problem in their production, that is the increasing attack of Fusarium oxyspsorum f.sp.cepae (FOCe) causing moler disease. Based on previous survey to respondents farmers found data that the most common variety planted by the farmer in Brebes is cv. Bima, disease intensity can reach 60% with yield losses over 40%. The field data however are still very limited both related to disease intensity and yield losses caused by the pathogen. This paper reports the occur of disease intensity of moler and its co-relation to yield losses based on the results of direct assessment on the field of shallot planting in Brebes. The data were founded through disease assessment and yield of 30 planting samples of shallot distributed in seven subdistricts in Brebes. Yield losses were assessed by using yield of shallot plantings with no moler disease for base line. The results shows that the disease intensity of moler is vary from no diseases to 75% and significantly effect to yield losses. Same shallot plantings are still free from moler disease with zero% of disease intensity. Possibly the land where no moler disease is a disease suppressive land, so interesting to further study.

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