Overnight supplemental low red light improves lettuce growth
Hydroponic cultivation of lettuce in south-eastern Brazil is carried out under short days (about 10.5 to 12 h of light). Although the positive effect of light supplementation on lettuce is recognised, the effect of low irradiance of red light on the plant is not known, which may be relevant in the e...
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| Veröffentlicht in: | Theoretical and experimental plant physiology 2023-12, Vol.35 (4), p.309-318 |
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| container_title | Theoretical and experimental plant physiology |
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| creator | Medelo, Maria José Yañez Cecílio Filho, Arthur Bernardes Carvalho, Rogério Falleiros Nascimento, Camila Seno dos Reis Cardoso Passos, Danilo |
| description | Hydroponic cultivation of lettuce in south-eastern Brazil is carried out under short days (about 10.5 to 12 h of light). Although the positive effect of light supplementation on lettuce is recognised, the effect of low irradiance of red light on the plant is not known, which may be relevant in the economic aspect and assist in the diffusion and adoption of the technology. Here, we tested the increase of light absorption efficiency when mulch is applied on hydroponic benches. The presence of mulch (restricted to hydroponic channels and over the entire bench) and red light irradiances (0, 0.8, 1.6 and 2.4 μmol m
−2
s
−1
) were evaluated on lettuce growth. No effects of growing season were observed on the biometric characteristics evaluated. Overnight supplementation with low red light acted positively in both autumn and winter, promoting an increase in plant growth and, consequently, yield. Mulching over the entire bench does not contribute to greater reflectance of red light applied to plants compared to mulching restricted to the channels. |
| doi_str_mv | 10.1007/s40626-023-00285-1 |
| format | Article |
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−2
s
−1
) were evaluated on lettuce growth. No effects of growing season were observed on the biometric characteristics evaluated. Overnight supplementation with low red light acted positively in both autumn and winter, promoting an increase in plant growth and, consequently, yield. Mulching over the entire bench does not contribute to greater reflectance of red light applied to plants compared to mulching restricted to the channels.</description><identifier>ISSN: 2197-0025</identifier><identifier>EISSN: 2197-0025</identifier><identifier>DOI: 10.1007/s40626-023-00285-1</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>absorption ; autumn ; Biomedical and Life Sciences ; biometry ; Brazil ; Channels ; economic factors ; Electromagnetic absorption ; Growing season ; Hydroponics ; Irradiance ; Lettuce ; Life Sciences ; light intensity ; mulches ; Plant growth ; red light ; reflectance ; Vegetables ; winter</subject><ispartof>Theoretical and experimental plant physiology, 2023-12, Vol.35 (4), p.309-318</ispartof><rights>The Author(s), under exclusive licence to Brazilian Society of Plant Physiology 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c303t-c12a665d1cba5eb31722a1ad44c67410f073773f0c1b50f76ef4135328e3bba03</cites><orcidid>0000-0002-6706-5496 ; 0000-0003-1270-7372 ; 0000-0003-2558-5765 ; 0000-0001-8564-5358 ; 0000-0002-4585-5526</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s40626-023-00285-1$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s40626-023-00285-1$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Medelo, Maria José Yañez</creatorcontrib><creatorcontrib>Cecílio Filho, Arthur Bernardes</creatorcontrib><creatorcontrib>Carvalho, Rogério Falleiros</creatorcontrib><creatorcontrib>Nascimento, Camila Seno</creatorcontrib><creatorcontrib>dos Reis Cardoso Passos, Danilo</creatorcontrib><title>Overnight supplemental low red light improves lettuce growth</title><title>Theoretical and experimental plant physiology</title><addtitle>Theor. Exp. Plant Physiol</addtitle><description>Hydroponic cultivation of lettuce in south-eastern Brazil is carried out under short days (about 10.5 to 12 h of light). Although the positive effect of light supplementation on lettuce is recognised, the effect of low irradiance of red light on the plant is not known, which may be relevant in the economic aspect and assist in the diffusion and adoption of the technology. Here, we tested the increase of light absorption efficiency when mulch is applied on hydroponic benches. The presence of mulch (restricted to hydroponic channels and over the entire bench) and red light irradiances (0, 0.8, 1.6 and 2.4 μmol m
−2
s
−1
) were evaluated on lettuce growth. No effects of growing season were observed on the biometric characteristics evaluated. Overnight supplementation with low red light acted positively in both autumn and winter, promoting an increase in plant growth and, consequently, yield. 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−2
s
−1
) were evaluated on lettuce growth. No effects of growing season were observed on the biometric characteristics evaluated. Overnight supplementation with low red light acted positively in both autumn and winter, promoting an increase in plant growth and, consequently, yield. Mulching over the entire bench does not contribute to greater reflectance of red light applied to plants compared to mulching restricted to the channels.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s40626-023-00285-1</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-6706-5496</orcidid><orcidid>https://orcid.org/0000-0003-1270-7372</orcidid><orcidid>https://orcid.org/0000-0003-2558-5765</orcidid><orcidid>https://orcid.org/0000-0001-8564-5358</orcidid><orcidid>https://orcid.org/0000-0002-4585-5526</orcidid></addata></record> |
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| subjects | absorption autumn Biomedical and Life Sciences biometry Brazil Channels economic factors Electromagnetic absorption Growing season Hydroponics Irradiance Lettuce Life Sciences light intensity mulches Plant growth red light reflectance Vegetables winter |
| title | Overnight supplemental low red light improves lettuce growth |
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