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首页> 外文期刊>Plant Biotechnology >Effects of varying light quality from single-peak blue and red light-emitting diodes during nursery period on flowering, photosynthesis, growth, and fruit yield of everbearing strawberry
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Effects of varying light quality from single-peak blue and red light-emitting diodes during nursery period on flowering, photosynthesis, growth, and fruit yield of everbearing strawberry

机译：苗期单峰蓝色和红色发光二极管的光质量变化对多年生草莓开花，光合作用，生长和果实产量的影响

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摘要

We studied the effects of varying light quality on the flowering, photosynthetic rate and fruit yield of everbearing strawberry plants (Fragariaxananassa Duch. 'HS138'), which are long-day plants, to increase the efficiency of fruit production in plant factories. The plants were grown under continuous lighting using three types of blue and red LEDs (blue light peak wavelength: 405, 450, and 470 nm; red light peak wavelength: 630, 660, and 685 nm) during the nursery period. All blue light from the various peak LED types promoted more flowering compared with red light (630 and 660 nm except for 685 nm). The longer wavelength among the red light range positively correlated with earlier flowering, whereas the number of days to anthesis did not significantly differ among blue LED treatment wavelengths, irrespective of peak wavelength. The result of a similar experiment using the perpetual flowering Fragaria vesca accession Hawaii-4 representing a model strawberry species showed almost the same pattern of flowering response to light quality. These results suggest that long-day strawberry plants show similar flowering response to light quality. The photosynthetic rate under red light (660 nm) was higher than that under blue light (450 nm). However, the plants grown under red light showed lower photosynthetic capacity than those grown under blue light. Although the light color used to grow the seedlings showed no difference in the daily fruit production, blue light irradiation during the nursery period hastened harvesting because of the advance in flowering.
机译：我们研究了变化的光质对长日照的多年生草莓植物（Fragariaxananassa Duch。'HS138'）的开花，光合速率和果实产量的影响，以提高植物工厂的果实生产效率。在苗圃期期间，使用三种类型的蓝色和红色LED（蓝光峰值波长：405、450和470 nm;红光峰值波长：630、660和685 nm）在连续照明下种植植物。与红光（630和660 nm，除了685 nm）相比，来自各种峰值LED类型的所有蓝光都促进了更多的开花。红光范围内较长的波长与较早开花呈正相关，而蓝光LED处理波长之间的花期天数没有显着差异，而与峰值波长无关。使用代表模型草莓物种的永生开花草莓无花果登录号Hawaii-4进行的类似实验的结果表明，对光质量的开花响应模式几乎相同。这些结果表明，长日草莓植物对光质表现出相似的开花反应。红光（660 nm）下的光合速率高于蓝光（450 nm）下的光合速率。然而，在红光下生长的植物显示出比在蓝光下生长的植物低的光合能力。尽管用于幼苗生长的浅色在日常水果产量上没有差异，但是由于开花的进展，苗圃期的蓝光照射加速了收获。

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