水耕ホウレンソウにおけるβ-カロテン濃度の季節および日変化

DOI NDLデジタルコレクション 日本農学文献記事索引 Web Site Web Site 被引用文献1件 参考文献20件

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タイトル別名
  • Seasonal and Diurnal Changes in .BETA.-Carotene Concentration in Spinach Plant Grown Hydroponically.
  • 水耕ホウレンソウにおけるβ‐カロテン濃度の季節および日変化
  • スイコウ ホウレンソウ ニ オケル ベータ カロテン ノウド ノ キセツ オヨビ ニチヘンカ

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To produce spinach (Spinacea oleracea L.) plants with high quality and β-carotene, they were grown hydroponically in a glasshouse and analyzed at various times of the day and periodically during the growing season. Leaves weighing up to 2 g of fresh weight (FW), tended to be richer in β-carotene in March to April than September to October. In those weighing over 2 g FW, the β-carotene concentration did not differ significantly between seasons. The difference in FW of the leaf blade and petiole influenced β-carotene content of the whole leaf (Exp.1). β-carotene concentrations significantly decreased shortly after daybreak, then increased and remained relatively high until dusk. The high concentration during the day period reflects the accumulation of dry matter. The diurnal fluctuations at 15/10 °C and 20/15 °C were closely parallel (Exp.2). Based on these data, we recommend that spinach is not harvested when β-carotene level decreases in the morning.

収録刊行物

  • 園芸学会雑誌

    園芸学会雑誌 69 (4), 477-482, 2000

    一般社団法人　園芸学会

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