@article{oai:rakuno.repo.nii.ac.jp:00007097,
 author = {Kameoka, Emi and 亀岡, 笑 and 大谷, 恭子 and 小西, ひな and 岡本, 和也 and Hagiwara-Komoda, Yuka and 薦田, 優香},
 issue = {2},
 journal = {酪農学園大学紀要. 自然科学編},
 month = {Mar},
 note = {Bulletin, Potato late blight is an important potato disease caused by Phytophthora infestance. We cultivated four potato varieties with or without resistance to late blight in a pesticied-free potato field at Rakuno Gakuen University (Ebetsu-city, Hokkaido), and the appearance and severity of the disease were evaluated over time from May through September 2022. After sprouting, there was intermittent rainfall, and the disease symptom was first observed in Inkanomezame and Kitaakari on July 13, followed by rapid spread of the disease of both varieties. In Sayaakane with quantitative (field) resistance, the disease symptom was first observed on August 3, but there was no subsequent increase of the disease severity. In Konahime with qualitative resistance mediated by a resistance gene, the old leaf with the typical symptom was found on September 12 after the wilting stage and the disease severity did not increase. In this study, we revealed that the quantitative and qualitative resistance harbored by “Sayaakane” and “Konahime”, respectively, are functional to races of P. infestance present in Ebetsu City in 2022.},
 title = {2022年北海道石狩管内江別市における無農薬実験圃場でのジャガイモ疫病感染時期および発病程度の評価},
 volume = {47},
 year = {2023}
}