@article{oai:soar-ir.repo.nii.ac.jp:00010891,
 author = {中山,  昌明},
 issue = {2},
 journal = {信州大学農学部紀要},
 month = {Sep},
 note = {The experiments were carried out to examine the effects of photoperiodic treatment on the growth, flowering and corm yield of gladiolus (variety Early Red), which was planted four times at a month interval from April 15 to July 15, 1963 in the field. The results obtained are summarized as follows: 1. In all planting dates, short day treatment accelerated to the maturity of plant as compared with long day treatment. Consequently, flowering was earlier in short day lot than in long day. 2. On the other hand, the length of stalk and spike and number of florets in short day lot were shorter and fewer than those in long day. 3. No any difference was observed in the number of new corms per plant between short day and long day lots, while the weight of new corms and cormels and number of cormels per plant in short day lot were increased remarkably as compared with in long day. 4. The plants grown under the natural day-length showed the average date of flowering, the yield of new corm and cormel almost same to the plants grown under the long day condition except the case of planting on July 15. On the other hand, those in the planting lot on July 15 under natural day-length was shown closely to the short day lot rather than long day. From these results, is may be considered that short day treatment is effective for promotion of flowering, growth of new corm and yield of cormels, though the number of florets is remarkably decreased, and that the number of days from planting to flowering is influenced by planting time rather than daylength., Article, 信州大学農学部紀要 4(2): 121-132(1967)},
 pages = {121--132},
 title = {長野県におけるグラジオラス栽培の基礎的研究 第4報グラジオラスの生育におよぼす日長および植え付け時期の影響},
 volume = {4},
 year = {1967}
}