Research in Plant Disease 2010;16(2):176-182.
Published online August 30, 2010.
콩의 품종, 파종시기 및 지역적 차이에 대한 병 발생 평가
김홍조, 오지연, 김동관, 윤홍태, 정우석, 홍점규, 김기덕
Evaluation of Disease Occurrence by Cultivar, Sowing Date and Locational Difference in Korean Soybean Fields
Hong Joe Kim, Ji Yeon Oh, Dong Kwan Kim, Hong Tai Yun, Woo Suk Jung, Jeum Kyu Hong, Ki Deok Kim
Occurrence of plant diseases is dependent on various factors in the agricultural system. Due to recent extensive environmental climate changes, i.e. global warming, agricultural systems such as planting dates and cultivars are being affected. Gradual transition in disease occurrence and incidence in the agricultural fields can also be affected by direct and/or indirect environmental changes. In this study, we evaluated disease occurrence and incidence in soybean plants to investigate whether it could be related with cultivars, planting dates and geographical differences in Korea in 2008. Soybean cultivars including ``Taekwang``, ``Pungsan``, ``Cheongja 3``, ``Saeol``, and ``Dawon`` were planted in four different dates, May 15, June 1, June 15, and June 30, in two locations, Suwon, and Naju. Soybean diseases such as wild fire and bacterial pustule were mainly found depending on cultivars, planting dates, and areas. Wild fire occurred severely on cv. ``Taekwang`` while bacterial blight did on cv. ``Dawon`` among tested cultivars. Disease developments of wild fire and bacterial blight generally decreased in delayed planting regardless of cultivars.
Key Words: Bacterial pustule, Cultivar, Sowing date, Soybean disease, Wild fire

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