@article{oai:repository.naro.go.jp:00006929,
 author = {澤井, 晃 and SAWAI, Akira and 竹田, 芳彦 and TAKEDA, Yoshihiko},
 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 = {Nov},
 note = {The objective of this exploration was to introduce winter-hardy and persistent ecotypes of red clover, Trifolium pratense, into Japan and also to introduce T. medium, which is not indigenous to Japan. We explored various areas in Finland and Sweden from August 28 through September 14 in 1990. We collected a total of 217 seed samples, consisting mostly of Trifolium species found in old meadows, fallow lands and along roadsides. Twenty four of the samples. were local varieties of T. pratense which were given to us by Finnish scientists and farmers. Collected seeds are preserved at the National Institute of Agrobiological Resources, Tsukuba, Japan.},
 pages = {127--175},
 title = {フィンランド, スウェーデンのアカクローバ探索},
 volume = {7},
 year = {1991},
 yomi = {サワイ, アキラ and タケダ, ヨシヒコ}
}