@article{oai:repository.naro.go.jp:00007072,
 author = {我有, 満 and GAU, Mitsuru and 山口, 秀和 and YAMAGUCHI, Hidekazu},
 journal = {植物遺伝資源探索導入調査報告書, Annual Report on Exploration and Introduction of Plant Genetic Resources},
 month = {Jan},
 note = {Exploration for Trifolium pratense L. and Trifolium lupinaster L. was conducted in Hokkaido on September 22, 1997, and in Tohoku and Central-mountainous regions of Honshu from September 29 to October 1, 1997. T. pratense, the most important forage legume in Japan, is well adapted to the northern part of Japan. Early-flowering and persistent types of T. pratense which may be adapted to high altitude conditions are rare and useful for breeding. Collecting germplasms with the characteristics of early-flowering and persistency was one purpose of this exploration. T. lupinaster is widly adapted to the northern part of the Eurasian Continent and Alaska, and is an only native species in genus Trifolium in Japan. It is reported to inhabit Central-mountainous regions and the eastern part of Hokkaido in Japan. Because it is considered to be more difficult to find T lupinaster than T. pratense, the exploration route was decided so that collecting T. lupinaster was the core of this exploration (Table 1, Fig. 1 and Fig. 2). 65 seed samples in total were collected (Table 2) and classified into as follows. T. lupinaster collection consist of 62 samples from Central-mountainous region in Nagano prefecture and 1 sample from Hokkaido. T. pratense collection consist of 2 samples from the Central-mountainous region in Nagano prefecture. 50 samples of T lupinaster were collected from individual plants. The other 13 samples of T. lupinaster were collected from population in a colony. 2 samples of T. pratense were collected from populations in a colony. T. lupinaster has habitat in a herbaceous zone with short plant type or a bare land. The states of colonies of T. lupinaster differ according to their habitats. The colony in Takeshimine is very large and consists of short and early-flowering plants. The colony in Washigamine is very small and consist of relatively tall and lateflowering plants. The colony in Asama-takaminekogen is large and consist of vigorous plants. The colony in Bansei is small and situated at a lower attitude than colonies in Nagano prefecture. It was very difficult to identify natural ecotypes of T. pratense from recently sown man-made populations. Because the exploration covered only a small area, especially in Hokkaido, a further survey may be necessary.},
 pages = {45--51},
 title = {北海道, 東北および中部山岳地帯におけるアカクローバおよびシャジクソウの収集},
 volume = {15},
 year = {2000},
 yomi = {ガウ, ミツル and ヤマグチ, ヒデカズ}
}