@article{oai:repository.naro.go.jp:00001455,
 author = {住友, 克彦 and SUMITOMO, Katsuhiko and DOZONO, Mitsuru and DOUZONO, Mitsuru and 道園, 美弦 and 久松, 完 and HISAMATSU, Tamotsu and 小野崎, 隆 and 柴田, 道夫 and SHIBATA, Michio},
 journal = {花き研究所研究報告, Bulletin of the National Institute of Floricultural Science},
 month = {Dec},
 note = {After stopping the night break of autumn-flowering chrysanthemum cv. 'Jimba', we extended the day length under natural short-day conditions in winter. At a night temperature of 18℃, extension of the day length to 12.5 h with incandescent lamps before dawn increased stem elongation, but had no effect on flowering or cut flower quality. At a night temperature of 12℃, however, flowering was delayed. Under this latter condition, the extension of day length had remarkable effects on growth and flowering. The timings and the forms of the supplemental lighting had considerably different effects. Plants illuminated with incandescent or fluorescent lamps before dawn flowered earlier than those under natural day length at 12℃ night temperature. Incandescent lamps promoted flowering more than did fluorescent lamps. In contrast, the extension of day length with either lamp after dusk delayed flowering, more so by fluorescent lamps. The difference in flowering response to the lamps might be linked to the lamps' spectral quality, especially the red/far-red ratio, and suggests the involvement of phytochrome. These results suggest that the extension of day length to 12.5 h with incandescent lamps before dawn will be useful for promoting growth and flowering of chrysanthemum cv. 'Jimba' at low temperatures in winter.},
 pages = {1--7},
 title = {栽培ギク '神馬' の冬期の栽培における消灯後の自然短日日長条件下での日長延長が生育開花に及ぼす影響},
 volume = {7},
 year = {2007},
 yomi = {スミトモ, カツヒコ and ドウゾノ, ミツル and ヒサマツ, タモツ and オノザキ, タカシ and シバタ, ミチオ}
}