Sunlight transmitted by colored shade nets on photosynthesis and yield of cucumber
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Rural |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000900200 |
Resumo: | ABSTRACT: Black shading nets are widely used in the protected cultivation of vegetables as a technique for controlling light and temperature, while the colored shading nets, with special optical properties to improve the use of solar radiation, appeared recently in the agricultural plastics market. Light quality transmitted by gray, aluminized, pearl, blue, red and black (control) nets with 30% shade was evaluated, as well as its effects on photosynthetic properties and fruits production of cucumber plants. Treatments (shade nets) were established under a randomized complete block design with four repetitions. The red net transmitted 23.7 and 40.3% more photosynthetic photon flux density (400 to 700nm) and red light (600 to 700nm) and the blue net transmitted 36% more blue light (400 to 500nm) in comparison with the respective transmissions of black net. All nets increased the photosynthetic responses: transpiration, stomatal conductance and CO2 assimilation, observed in plants grown under black net. Leaf greenness (41.6 SPAD units) and foliar area (90dm2) increased 22.8 and 38.9% with the red net, while the dry weight of leaf (52.5g) increased 21.9% with pearl net. Pearl, red, aluminized and blue nets showed to be viable alternatives because the production of fruit increased in 71, 48, 46 and 46%, respectively, in comparison with the conventional black net (52t ha-1). |
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Sunlight transmitted by colored shade nets on photosynthesis and yield of cucumberCucumis sativus L.light transmissionphotosynthetic responsesleaf growthfruit production.ABSTRACT: Black shading nets are widely used in the protected cultivation of vegetables as a technique for controlling light and temperature, while the colored shading nets, with special optical properties to improve the use of solar radiation, appeared recently in the agricultural plastics market. Light quality transmitted by gray, aluminized, pearl, blue, red and black (control) nets with 30% shade was evaluated, as well as its effects on photosynthetic properties and fruits production of cucumber plants. Treatments (shade nets) were established under a randomized complete block design with four repetitions. The red net transmitted 23.7 and 40.3% more photosynthetic photon flux density (400 to 700nm) and red light (600 to 700nm) and the blue net transmitted 36% more blue light (400 to 500nm) in comparison with the respective transmissions of black net. All nets increased the photosynthetic responses: transpiration, stomatal conductance and CO2 assimilation, observed in plants grown under black net. Leaf greenness (41.6 SPAD units) and foliar area (90dm2) increased 22.8 and 38.9% with the red net, while the dry weight of leaf (52.5g) increased 21.9% with pearl net. Pearl, red, aluminized and blue nets showed to be viable alternatives because the production of fruit increased in 71, 48, 46 and 46%, respectively, in comparison with the conventional black net (52t ha-1).Universidade Federal de Santa Maria2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000900200Ciência Rural v.48 n.9 2018reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/0103-8478cr20170829info:eu-repo/semantics/openAccessTafoya,Felipe AyalaJuárez,Moisés Gilberto YáñezOrona,Carlos Alfonso LópezLópez,Raymundo MedinaAlcaraz,Teresa de Jesús VelázquezValdés,Tomás Díazeng2018-08-14T00:00:00ZRevista |
dc.title.none.fl_str_mv |
Sunlight transmitted by colored shade nets on photosynthesis and yield of cucumber |
title |
Sunlight transmitted by colored shade nets on photosynthesis and yield of cucumber |
spellingShingle |
Sunlight transmitted by colored shade nets on photosynthesis and yield of cucumber Tafoya,Felipe Ayala Cucumis sativus L. light transmission photosynthetic responses leaf growth fruit production. |
title_short |
Sunlight transmitted by colored shade nets on photosynthesis and yield of cucumber |
title_full |
Sunlight transmitted by colored shade nets on photosynthesis and yield of cucumber |
title_fullStr |
Sunlight transmitted by colored shade nets on photosynthesis and yield of cucumber |
title_full_unstemmed |
Sunlight transmitted by colored shade nets on photosynthesis and yield of cucumber |
title_sort |
Sunlight transmitted by colored shade nets on photosynthesis and yield of cucumber |
author |
Tafoya,Felipe Ayala |
author_facet |
Tafoya,Felipe Ayala Juárez,Moisés Gilberto Yáñez Orona,Carlos Alfonso López López,Raymundo Medina Alcaraz,Teresa de Jesús Velázquez Valdés,Tomás Díaz |
author_role |
author |
author2 |
Juárez,Moisés Gilberto Yáñez Orona,Carlos Alfonso López López,Raymundo Medina Alcaraz,Teresa de Jesús Velázquez Valdés,Tomás Díaz |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Tafoya,Felipe Ayala Juárez,Moisés Gilberto Yáñez Orona,Carlos Alfonso López López,Raymundo Medina Alcaraz,Teresa de Jesús Velázquez Valdés,Tomás Díaz |
dc.subject.por.fl_str_mv |
Cucumis sativus L. light transmission photosynthetic responses leaf growth fruit production. |
topic |
Cucumis sativus L. light transmission photosynthetic responses leaf growth fruit production. |
description |
ABSTRACT: Black shading nets are widely used in the protected cultivation of vegetables as a technique for controlling light and temperature, while the colored shading nets, with special optical properties to improve the use of solar radiation, appeared recently in the agricultural plastics market. Light quality transmitted by gray, aluminized, pearl, blue, red and black (control) nets with 30% shade was evaluated, as well as its effects on photosynthetic properties and fruits production of cucumber plants. Treatments (shade nets) were established under a randomized complete block design with four repetitions. The red net transmitted 23.7 and 40.3% more photosynthetic photon flux density (400 to 700nm) and red light (600 to 700nm) and the blue net transmitted 36% more blue light (400 to 500nm) in comparison with the respective transmissions of black net. All nets increased the photosynthetic responses: transpiration, stomatal conductance and CO2 assimilation, observed in plants grown under black net. Leaf greenness (41.6 SPAD units) and foliar area (90dm2) increased 22.8 and 38.9% with the red net, while the dry weight of leaf (52.5g) increased 21.9% with pearl net. Pearl, red, aluminized and blue nets showed to be viable alternatives because the production of fruit increased in 71, 48, 46 and 46%, respectively, in comparison with the conventional black net (52t ha-1). |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000900200 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000900200 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-8478cr20170829 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Rural v.48 n.9 2018 reponame:Ciência Rural instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Rural |
collection |
Ciência Rural |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1749140552941568000 |