Genetic Resources of Orchardgrass (Dactylis glomerata L.) and Related Subspecies from Warmer Regions

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
本文フルテキスト

Characteristics of orchardgrass populations collected in 7 regions in Japan were studied for a period of 5 years. Populations from the Kanto region showed the best performance, indicating a high adaptation to the region. Factors which had contributed to the differentiation of ecotype populations in Kanto were discussed. Characters of several introduced subspecies of Dactylis glomerata L. were evaluated in relation to their native habitats. Subsp. marina from the sub-tropical coastal region differed from the others by the high degree of greenness in winter. Subspecies himalayensis was very late in heading. Subsp. lusitanica from Portugal showed good growth under short daylength. Populations of the subspecies of Dactylis glomerata L. collected in Morocco and Portugal were evaluated at NGRI, Japan. Fresh weight was low throughout the year in the populations from Morocco and high in those from Portugal. Many populations from Portugal displayed better growth in late autumn. Examination of the characteristics of populations in relation to the local climatic conditions indicated that fresh weight and leaf size increased in accordance to the increase of rainfall in the collection districts.

刊行年月日
作成者 Fumihiro FUJIMOTO
オンライン掲載日
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
27
2
開始ページ 106
終了ページ 111
言語 eng

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