@article{oai:repository.naro.go.jp:00006968, author = {髙井, 智之 and TAKAI, Tomoyuki and 松浦, 正宏 and MATSU-URA, Masahiro and 蝦名, 真澄 and EBINA, Masumi and OKUMURA, Kemji and 奥村, 健治}, 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 = {Oct}, note = {We already collected perennial ryegrass (Lolium perenne) throughout the Kanto and Tohoku regions and explored for Kyushu, Chugoku, Shikoku and Hokuriku regions in 1993. We collected perennial ryegrass germplasm at 18 sites. We collected 3, 4, 6 and 5 ecotypes in Kyushu, Chugoku, Shikoku and Hokuriku regions, respectively. We easily found perennial ryegrass in pasture at high altitude, but hardly found it in pasture at low altitude. It shows that perennial ryegrass can not survive under high temperature condition in summer. There were many perennial ryegrass plants in turfy pasture under grazing or frequent mowering, indicating its tolerance to trampling. Natural hybrids between Italian and perennial ryegrass were found in some sites.}, pages = {29--34}, title = {九州, 中• 四国, 北陸地方におけるペレニアルライグラスの収集}, volume = {10}, year = {1994}, yomi = {タカイ, トモユキ and マツウラ, マサヒロ and エビナ, マスミ and オクムラ, ケンジ} }