Effects of supplemental lighting during the period of rapid fruit development on the growth, yield, and energy use efficiency in strawberry plant production

Ayami Yoneda, Daisuke Yasutake, Kota Hidaka, Nur I. Muztahidin, Yuta Miyoshi, Masahar Kitano, Takashi Okayasu

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

Supplemental lighting techniques in greenhouses can increase plant growth and yield but require substantial amounts of energy. We proposed the use of energy-saving supplemental lighting, which was applied during rapid fruit development when the transport of photosynthetic products into the fruit was active. We measured the physiological responses (photosynthesis, growth, yield) of the strawberry plants with single fruit truss, wherein the following 3 treatments were made: plants were cultivated with no supplemental lighting (control), supplemental lighting throughout the experimental period (normal-light), and supplemental lighting during rapid fruit development (short-light). The period of rapid fruit development corresponded to 33% of the experimental period, and the cumulative light intensity for the short-light treatment was half of that for the normal-light treatment, and twice that of the control treatment. Consequently, the leaf area and dry weight of the plant body were significantly increased following normal-light and short-light treatments compared with the control treatment. The yield for the short-light treatment was also increased and nearly equal to that of the normal-light treatment but no significance to the control treatment. However, the energy use efficiency of the short-light was improved 1.5-fold compared to the normal-light treatment. Thus, shortening the period of supplemental lighting in accordance with the characteristics of fruit development is potentially effective.

本文言語英語
ページ(範囲)233-239
ページ数7
ジャーナルInternational Agrophysics
34
2
DOI
出版ステータス出版済み - 2020

All Science Journal Classification (ASJC) codes

  • 水の科学と技術
  • 農業および生物科学(全般)
  • 土壌科学
  • 流体および伝熱

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