「イチョウイモ」の花穂と新芋の発育に及ぼす日長と温度の影響

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タイトル別名
  • Effects of Photoperiod and Temperature on the Development of Spikes and New Tubers in Chinese Yam (Dioscorea opposita Thunb. cv. Ichoimo).
  • イチョウイモ ノ カスイ ト シン イモ ノ ハツイク ニ オヨボス ニッチョウ ト オンド ノ エイキョウ

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抄録

The effects of photoperiod, air temperature, and root zone temperature (RZT) on the development of spikes and new tubers in Chinese yam (Dioscorea opposita Thunb. cv. Ichoimo) were investigated. The development of the main shoot and spikes was promoted by both 16-hr and 24-hr photoperiods, 24/19°C and 30/25°C (day/night), and an RZT of 25°C. Shoot and spikes development was severely inhibited by an 8-hr photoperiod, 17/12°C, and an RZT of 10°C. These data indicate that the development of main shoot and spikes is promoted by the long-day photoperiods, 24/19°C and 30/25°C, and the 25°C RZT. Under these environmental conditions, spikes emerged relatively early. Development of new tubers was significantly promoted by an 8-hr photoperiod, 24/19°C, and the 25°C RZT. Moderate development occured at 30/25°C, and the 17°C RZT. In contrast, new tubers were severely inhibited by both 16-hr and 24-hr photoperiods, and 10°C RZT.

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  • 園芸学会雑誌

    園芸学会雑誌 68 (1), 124-129, 1999

    一般社団法人　園芸学会

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