Possibility of Harvesting June-bearing Strawberries in a Plant Factory with Artificial Light during Summer and Autumn by Re-using Plants Cultivated by Forcing Culture

Iwao, Tomoe; Murakami, Takuya; Akaboshi, Osamu; Cho, Hnin Yin; Takahashi, Sakura; Kato, M.; Horiuchi, Naomi; Ogiwara, Isao

doi:10.2525/ecb.59.99

Cited by 5 publications

(4 citation statements)

References 18 publications

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“…The difference in A L between cultivars can be attributed to the difference in the PPFD at the upper position of the canopy (Tochiotome, 280 mmolÁm À2 Ás À1 ; Koiminori, 400 mmolÁm À2 Ás À1 ) because light intensity is the major factor that amplifies photosynthesis (Fig. 7) (Choi et al 2016;Hidaka et al 2013;Iwao et al 2021). This difference in PPFD should be attributable to the difference in their plant height because that of Koiminori was 1.2-to 1.8-times higher than that of Tochiotome, and the upper leaves of its canopy received more light because they were closer to the light source during the cultivation (Figs.…”

Section: Discussionmentioning

confidence: 99%

Yield and Photosynthesis Related to Growth Forms of Two Strawberry Cultivars in a Plant Factory with Artificial Lighting

Takahashi,

Yasutake,

Hidaka

et al. 2024

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Appropriate growth forms for strawberry production in a plant factory with artificial lighting (PFAL), which is a recently developed production system, remain undetermined. Improving strawberry productivity in a PFAL requires insights into the interplay between production characteristics (growth and photosynthesis) and growth forms, such as plant height and leaf area (LA), which are major determinants of crop yield. Growth status, yield, and photosynthetic characteristics of the two cultivars of strawberries (Fragaria ×ananassa Duch. Tochiotome and Koiminori) with different growth forms were examined. ‘Koiminori’ exhibited a 1.9-fold higher yield and a 2.0-fold greater total dry weight of respective organs compared with ‘Tochiotome’. The single-plant photosynthetic rate (AP), serving as an index for both cultivars, was 2.2-times higher for Koiminori than for Tochiotome. The photosynthetic rates of a single leaf (AL) and LA were also analyzed as important factors that influence the AP. The AL for ‘Koiminori’ surpassed that of ‘Tochiotome’ by 1.4 times. This was attributed to the elevated photosynthetic photon flux density received by the upper leaves of Koiminori, which is a consequence of its higher plant height in proximity to the light source. Evaluation of four photosynthetic capacities, maximum rate of carboxylation, maximum rate of electron transport, photosynthetic rate under saturating light, and light utilization efficiency, which are potential factors that affect AL, revealed no differences in these capacities between cultivars. ‘Koiminori’ exhibited a significantly larger LA (2.3- to 3.1-times) than ‘Tochiotome’, indicating that the former’s higher AP resulted mainly from its higher AL and larger LA. Thus, strawberry production in a PFAL can be improved by growing cultivars with growth forms such as higher plant height and larger LA.

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Section: Discussionmentioning

confidence: 99%

Yield and Photosynthesis Related to Growth Forms of Two Strawberry Cultivars in a Plant Factory with Artificial Lighting

Takahashi,

Yasutake,

Hidaka

et al. 2024

horts

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“…Gas exchange in strawberry increases in the early morning to peak between late morning and early afternoon (Iwao et al, 2021;Kimura et al, 2020Kimura et al, , 2023Nakai et al, 2022;Yokoyama et al, 2023). For instance, Yokoyama et al (2023) found that net CO 2 assimilation on a sunny day in May in Japan increased from 11.8 µmol per m 2 per s at 0700 h to 15.0 µmol per m 2 per s between 0900 and 1300 h and then decreased to 11.0 µmol per m 2 per s at 1700 h. The changes in photosynthesis reflected changes in light levels, temperature and the opening and closing of the stomata.…”

Section: Diurnal Changes In Photosynthesismentioning

confidence: 99%

Climate change increases net CO₂assimilation in the leaves of strawberry, but not yield

Menzel

2023

The Journal of Horticultural Science and Biotechnology

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Fruit growth in strawberry is dependent on photosynthesis in the leaves. The main scenarios for climate change include an increase in the concentration of CO 2 in the atmosphere and an increase in temperature. This review examined photosynthesis in strawberry. The mean photosynthetic photon flux (PPF) for the saturation of CO 2 assimilation was 1,031 ± 447 µmol per m 2 per s, the median was 1,000 µmol per m 2 per s, and the range was from 467 to 2,200 µmol per m 2 per s (N = 59). The mean concentration of CO 2 for the saturation of assimilation was 869 ± 306 ppm, the median was 900 ppm, and the range was from 410 to 1,750 ppm (N = 32). The optimum temperature range for CO 2 assimilation was 20° to 30°C, with lower photosynthesis at lower or higher temperatures. The optimum temperatures for photosynthesis are higher than those for flowering and fruit growth. The impact of climate change on production varies across growing areas. In warm locations, higher temperatures increase photosynthesis, but not yield. In cool locations, higher temperatures increase plant growth and the length of the production season, but this comes at the expense of flower initiation.

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“…Vertical farming is increasingly becoming a necessity for agriculture, due to population growth, lack of agricultural space, and reduction of natural resources [9]. This technology has also demonstrated that it may be able to increase yields [13,14] and guarantee year-round production [5], e.g., the production of saffron bulbs [15], bell pepper [16,17], tomato [18], cucumber [19] and strawberry [20,21], which are crops of great economic and commercial interest worldwide; increase compounds naturally [22], and even increase plant defenses against pests and diseases thanks to the activation of genes or proteins produced by artificial light within the VF [23].…”

Section: Introductionmentioning

confidence: 99%

Role of Spectrum-Light on Productivity, and Plant Quality over Vertical Farming Systems: Bibliometric Analysis

et al. 2023

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The growing demands for food with high quality standards and high nutritional value have caused agriculture to evolve towards agricultural innovation go hand in hand with technological development, as is the case of vertical farming (VF) development. VF is a competitive system for sustainable food production, reducing space, and natural and human resources for agricultural production, and it is a system that can be developed anywhere in the world and at any time, without seasonality being a factor that influences production. Light is the most important factor to consider when it comes to vertical farming, replacing sunlight with artificial light has had great advances in improving productivity, especially when using LED lighting. Despite the exponential growth of the system, there is a paucity of analysis on the research that has been carried out to date using a VF system, and on information on the most relevant parameters to be considered for optimum production. This review is a bibliometric analysis of 318 scientific articles taken from the SCOPUS database, where information from 109 papers published in relevant journals was used. During the last 10 years, the number of publications that have been carried out in a VF system has increased by 195%, with China standing out as the geographical location where field experiments are carried out. Lettuce crop predominates in the investigations, with a light intensity of 200 μmol∙m−2∙s−1 and with a photoperiod of 16 h·day−1, using spectra between 450 and 495 nm, and a combination of blue and red (450–495 and 620–750 nm). The use of the research in the VF system for fresh, quality, local produce has increased in recent years, and has proven to be highly effective in productivity and quality. Conditions and management have been generalized, with more than 50% of researchers deciding to perform this cultivation method with similar photoperiod, spectrum, and intensity. Among the conclusions obtained by each researcher, it is also agreed that it is a potentially sustainable and controllable system that can be developed in urban locations, benefiting the social economy, food security, and the environment, while the conclusions on the cent per cent utilization of natural resources (such as energy from sunlight) in the system remain open and improving.

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Possibility of Harvesting June-bearing Strawberries in a Plant Factory with Artificial Light during Summer and Autumn by Re-using Plants Cultivated by Forcing Culture

Cited by 5 publications

References 18 publications

Yield and Photosynthesis Related to Growth Forms of Two Strawberry Cultivars in a Plant Factory with Artificial Lighting

Yield and Photosynthesis Related to Growth Forms of Two Strawberry Cultivars in a Plant Factory with Artificial Lighting

Climate change increases net CO₂assimilation in the leaves of strawberry, but not yield

Role of Spectrum-Light on Productivity, and Plant Quality over Vertical Farming Systems: Bibliometric Analysis

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Possibility of Harvesting June-bearing Strawberries in a Plant Factory with Artificial Light during Summer and Autumn by Re-using Plants Cultivated by Forcing Culture

Cited by 5 publications

References 18 publications

Yield and Photosynthesis Related to Growth Forms of Two Strawberry Cultivars in a Plant Factory with Artificial Lighting

Yield and Photosynthesis Related to Growth Forms of Two Strawberry Cultivars in a Plant Factory with Artificial Lighting

Climate change increases net CO2assimilation in the leaves of strawberry, but not yield

Role of Spectrum-Light on Productivity, and Plant Quality over Vertical Farming Systems: Bibliometric Analysis

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Climate change increases net CO₂assimilation in the leaves of strawberry, but not yield