Anthocyanin spot formation of bentgrass green of golf courses in Kyushu

概要

論文の詳細を見る
In order to clarify the climatic factors which influence on anthocyanin spot formation, 18 greens of creeping bentgrass at Fukuoka Country Club (Fukuoka City) was observed monthly over winter. The spot formation was also observed to know varietal difference in nursery of some cultivars at Wakamatsu Golf Club (Kitakyushu City) . As an indicator of anthocyanin spot formation, anthocyanin index was used in this investigation. The index was calculated from coverage and color intensity (tone) of anthocyanin spot formed in green. The first appearance of anthocyanin spot in Fukuoka area was the middle ten days of December. Anthocyanin index increased from December to February, and then it decreased for March. From analysis of climatic factors in Fukuoka, it was made clear that about 10°C of daily mean air temperature is a turning point of appearance and vanishment of anthocyanin spot in bentgrass green. Anthocyanin spot formation was more remarkable in sodding than seeding establishment. Also it became remarkable in third year in the former and fourth year in the latter after green establishment. Anthocyanin index of new bentgrass cultivars bred in 1987 and 1988 was lesser than of penncross cultivar bred in 1954 under the same green established and cultivated conditions.
日本芝草学会の論文