Ken-ichi Tamura, Yasuharu sanada, Kazuhiro Tase, Yukio Akiyama, Akito Kubota (担当:分担執筆, 範囲:Quantitative trait loci for winter hardiness and other agronomic traits in the progeny of two amphiploid Festulolium hybrids (Festuca pratensis x Lolium perenne) backcrossed twice to tetraploid Lolium perenne)