EFFECTS OF THE USE OF FLOATING ROW COVERS ON ENVIRONMENTAL VARIABLES AND CROP YIELD LETTUCE
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Engenharia na Agricultura |
Texto Completo: | https://periodicos.ufv.br/reveng/article/view/625 |
Resumo: | This study aims to evaluate the effect of protecting floating row covers on the behavior of environmental variables and the yield of a crop of lettuce. For it was sowed during two seasons autumn-winter cultivar of butterhead lettuce type (Lactuca sativa var. capitata) in germination trays of 128 cells with subsequent transplantation field performed at 37 (cycle 1) and 49 (cycle 2) days after sowing. The treatments were: 1)- Crop protected with floating row cover (MT); 2)- Control unprotected (T) in an experimental design in split plots with 3 repetitions. The plantation frame used was 0.35 m between rows and 0.25 m between plants and irrigation was made by a drip system. The effect of floating row cover on the transmissivity of photosynthetically active radiation (PAR), temperature and relative humidity, crop yield, heat summation in degree.days-1 from trasplant to harvest (ºC.ddt-1) and efficiency of use of radiation (EUR) was evaluated. The results showed an average transmissivity of 63.1% RFA, temperature increase of minimum, average and maximum air 1.1; 2.0 and 3.1 °C respectively, and 4.3% relative humidity. The fresh weight yield (t ha-1) showed statistically significant differences between treatments, being 38.2 (MT); 15.5 (T) for cycle 1 and 33.8 (MT) and 14.7 (T) for cycle 2. The heat summation and EUR was higher in the treatment with floating row cover. Crop protection allows greater earlier maturity with significant performance improvements. |
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Engenharia na Agricultura |
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EFFECTS OF THE USE OF FLOATING ROW COVERS ON ENVIRONMENTAL VARIABLES AND CROP YIELD LETTUCEEFECTOS DEL USO DE MANTA TÉRMICA SOBRE VARIABLES AMBIENTALES Y RENDIMIENTO DE UN CULTIVO DE LECHUGALactuca sativa var. capitataprotecciónradiación fotosintéticamente activatemperaturarendimientoThis study aims to evaluate the effect of protecting floating row covers on the behavior of environmental variables and the yield of a crop of lettuce. For it was sowed during two seasons autumn-winter cultivar of butterhead lettuce type (Lactuca sativa var. capitata) in germination trays of 128 cells with subsequent transplantation field performed at 37 (cycle 1) and 49 (cycle 2) days after sowing. The treatments were: 1)- Crop protected with floating row cover (MT); 2)- Control unprotected (T) in an experimental design in split plots with 3 repetitions. The plantation frame used was 0.35 m between rows and 0.25 m between plants and irrigation was made by a drip system. The effect of floating row cover on the transmissivity of photosynthetically active radiation (PAR), temperature and relative humidity, crop yield, heat summation in degree.days-1 from trasplant to harvest (ºC.ddt-1) and efficiency of use of radiation (EUR) was evaluated. The results showed an average transmissivity of 63.1% RFA, temperature increase of minimum, average and maximum air 1.1; 2.0 and 3.1 °C respectively, and 4.3% relative humidity. The fresh weight yield (t ha-1) showed statistically significant differences between treatments, being 38.2 (MT); 15.5 (T) for cycle 1 and 33.8 (MT) and 14.7 (T) for cycle 2. The heat summation and EUR was higher in the treatment with floating row cover. Crop protection allows greater earlier maturity with significant performance improvements.El presente trabajo tuvo como objetivo evaluar el efecto de la protección de la manta térmica sobre el comportamiento de variables ambientales y el rendimiento de un cultivo de lechuga. Para ello, se sembró durante dos temporadas otoño-invernales un cultivar de lechuga tipo mantecosa (Lactuca sativa var. capitata) en bandejas de germinación de 128 celdas, con posterior trasplante en campo, realizado a los 37 días (ciclo 1) y 49 días (ciclo 2) después de la siembra. Los tratamientos fueron: 1) Cultivo protegido con manta térmica (MT); 2) Testigo no protegido (T) en un diseño experimental en parcelas divididas con tres repeticiones. El marco de plantación utilizado fue de 0,35 m entre hileras y 0,25 m entre plantas. El riego se efectuó mediante un sistema de goteo. Se evaluó el efecto de la manta térmica sobre la trasmisividad de la radiación fotosintéticamente activa (RFA), temperatura y humedad relativa del aire, rendimiento del cultivo, suma térmica en grados.día-1 desde el trasplante hasta la cosecha (ºC.ddt-1). Los resultados mostraron en el tratamiento MT una trasmisividad promedio de la RFA de 0,69 (ciclo 1) y 0,73 Mj.m-2.día-1 (ciclo 2), incremento de la temperatura del aire mínima, media y máxima en 1,1; 2,0 y 3,1 ºC, respectivamente, y de la humedad relativa. El rendimiento en peso fresco (t ha-1) presentó diferencias estadísticas significativas entre los tratamientos, siendo de: 37,7 (MT); 15,5 (T) para el ciclo 1 y 33,8 (MT) y 14,7 (T) para el ciclo 2. La suma térmica fue mayor en el tratamiento con manta térmica. La protección del cultivo permitió una mayor precocidad con mejoras significativas en el rendimiento.Universidade Federal de Viçosa - UFV2017-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufv.br/reveng/article/view/62510.13083/reveng.v25i1.692Engineering in Agriculture; Vol. 25 No. 1 (2017); 74-82Revista Engenharia na Agricultura - REVENG; v. 25 n. 1 (2017); 74-822175-68131414-398410.13083/reveng.v25i1reponame:Engenharia na Agriculturainstname:Universidade Federal de Viçosa (UFV)instacron:UFVporhttps://periodicos.ufv.br/reveng/article/view/625/414Salusso, Fabricio AlejandroPlevich, José OmarDelgado, Angel Ramon SanchezRamos, Diego FernandoGrosso, Liliana Elidainfo:eu-repo/semantics/openAccess2023-01-19T13:32:22Zoai:ojs.periodicos.ufv.br:article/625Revistahttps://periodicos.ufv.br/revengPUBhttps://periodicos.ufv.br/reveng/oairevistaengenharianagricultura@gmail.com||andrerosa@ufv.br||tramitacao.reveng@gmail.com|| reveng@ufv.br2175-68131414-3984opendoar:2023-01-19T13:32:22Engenharia na Agricultura - Universidade Federal de Viçosa (UFV)false |
dc.title.none.fl_str_mv |
EFFECTS OF THE USE OF FLOATING ROW COVERS ON ENVIRONMENTAL VARIABLES AND CROP YIELD LETTUCE EFECTOS DEL USO DE MANTA TÉRMICA SOBRE VARIABLES AMBIENTALES Y RENDIMIENTO DE UN CULTIVO DE LECHUGA |
title |
EFFECTS OF THE USE OF FLOATING ROW COVERS ON ENVIRONMENTAL VARIABLES AND CROP YIELD LETTUCE |
spellingShingle |
EFFECTS OF THE USE OF FLOATING ROW COVERS ON ENVIRONMENTAL VARIABLES AND CROP YIELD LETTUCE Salusso, Fabricio Alejandro Lactuca sativa var. capitata protección radiación fotosintéticamente activa temperatura rendimiento |
title_short |
EFFECTS OF THE USE OF FLOATING ROW COVERS ON ENVIRONMENTAL VARIABLES AND CROP YIELD LETTUCE |
title_full |
EFFECTS OF THE USE OF FLOATING ROW COVERS ON ENVIRONMENTAL VARIABLES AND CROP YIELD LETTUCE |
title_fullStr |
EFFECTS OF THE USE OF FLOATING ROW COVERS ON ENVIRONMENTAL VARIABLES AND CROP YIELD LETTUCE |
title_full_unstemmed |
EFFECTS OF THE USE OF FLOATING ROW COVERS ON ENVIRONMENTAL VARIABLES AND CROP YIELD LETTUCE |
title_sort |
EFFECTS OF THE USE OF FLOATING ROW COVERS ON ENVIRONMENTAL VARIABLES AND CROP YIELD LETTUCE |
author |
Salusso, Fabricio Alejandro |
author_facet |
Salusso, Fabricio Alejandro Plevich, José Omar Delgado, Angel Ramon Sanchez Ramos, Diego Fernando Grosso, Liliana Elida |
author_role |
author |
author2 |
Plevich, José Omar Delgado, Angel Ramon Sanchez Ramos, Diego Fernando Grosso, Liliana Elida |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Salusso, Fabricio Alejandro Plevich, José Omar Delgado, Angel Ramon Sanchez Ramos, Diego Fernando Grosso, Liliana Elida |
dc.subject.por.fl_str_mv |
Lactuca sativa var. capitata protección radiación fotosintéticamente activa temperatura rendimiento |
topic |
Lactuca sativa var. capitata protección radiación fotosintéticamente activa temperatura rendimiento |
description |
This study aims to evaluate the effect of protecting floating row covers on the behavior of environmental variables and the yield of a crop of lettuce. For it was sowed during two seasons autumn-winter cultivar of butterhead lettuce type (Lactuca sativa var. capitata) in germination trays of 128 cells with subsequent transplantation field performed at 37 (cycle 1) and 49 (cycle 2) days after sowing. The treatments were: 1)- Crop protected with floating row cover (MT); 2)- Control unprotected (T) in an experimental design in split plots with 3 repetitions. The plantation frame used was 0.35 m between rows and 0.25 m between plants and irrigation was made by a drip system. The effect of floating row cover on the transmissivity of photosynthetically active radiation (PAR), temperature and relative humidity, crop yield, heat summation in degree.days-1 from trasplant to harvest (ºC.ddt-1) and efficiency of use of radiation (EUR) was evaluated. The results showed an average transmissivity of 63.1% RFA, temperature increase of minimum, average and maximum air 1.1; 2.0 and 3.1 °C respectively, and 4.3% relative humidity. The fresh weight yield (t ha-1) showed statistically significant differences between treatments, being 38.2 (MT); 15.5 (T) for cycle 1 and 33.8 (MT) and 14.7 (T) for cycle 2. The heat summation and EUR was higher in the treatment with floating row cover. Crop protection allows greater earlier maturity with significant performance improvements. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03-31 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufv.br/reveng/article/view/625 10.13083/reveng.v25i1.692 |
url |
https://periodicos.ufv.br/reveng/article/view/625 |
identifier_str_mv |
10.13083/reveng.v25i1.692 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufv.br/reveng/article/view/625/414 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Viçosa - UFV |
publisher.none.fl_str_mv |
Universidade Federal de Viçosa - UFV |
dc.source.none.fl_str_mv |
Engineering in Agriculture; Vol. 25 No. 1 (2017); 74-82 Revista Engenharia na Agricultura - REVENG; v. 25 n. 1 (2017); 74-82 2175-6813 1414-3984 10.13083/reveng.v25i1 reponame:Engenharia na Agricultura instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
Engenharia na Agricultura |
collection |
Engenharia na Agricultura |
repository.name.fl_str_mv |
Engenharia na Agricultura - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
revistaengenharianagricultura@gmail.com||andrerosa@ufv.br||tramitacao.reveng@gmail.com|| reveng@ufv.br |
_version_ |
1800211146020487168 |