Response of three soybean cultivars to three spacings and three seeding densities, in Pelotas, RS
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/15289 |
Resumo: | This work aimed to determine the effects of cultivars, row width, and distance between plants in a row (row seeding rate), as well as their respective interactions, on the yield of soybeans (Glycine max (L.) Merrill), in the 1977/78 crops season, a 33 factorial experiment, with four replicates, arranged in a randomized blocks design, was planted at the State Experimental Research Unit (UEPAE), Pelotas, RS. Cultivar, row width and row seeding rate and their interactions were evaluated; all were significant at the 1% level of probability. IAS 4 had the highest yield, significantly superior to the IAS 2 yield. IAS 2 showed the plant canopy most appropriate to intragenotypic competition under water stress conditions, whereas Hardee did not show the same genetic potencial as IAS 2 and IAS 4 to maintain a fair yield stability when the area available for plant growth was increased. The highest populations gave the highest yields and for Hardee the highest degree of lodging. The highest yield was obtained with 0,40 m row/width and 25 plants per meter of row. At the lowest row seeding rate (15 plants/meter) row width differences (0,40 m or 0,60 m or 0,80 m) did not affect yield. |
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Response of three soybean cultivars to three spacings and three seeding densities, in Pelotas, RSResposta de três cultivares de soja a três espaçamentos e três densidades de semeadura, em Pelotas, RSGycine max (L) MerrillGlycine max (L.) MerrillThis work aimed to determine the effects of cultivars, row width, and distance between plants in a row (row seeding rate), as well as their respective interactions, on the yield of soybeans (Glycine max (L.) Merrill), in the 1977/78 crops season, a 33 factorial experiment, with four replicates, arranged in a randomized blocks design, was planted at the State Experimental Research Unit (UEPAE), Pelotas, RS. Cultivar, row width and row seeding rate and their interactions were evaluated; all were significant at the 1% level of probability. IAS 4 had the highest yield, significantly superior to the IAS 2 yield. IAS 2 showed the plant canopy most appropriate to intragenotypic competition under water stress conditions, whereas Hardee did not show the same genetic potencial as IAS 2 and IAS 4 to maintain a fair yield stability when the area available for plant growth was increased. The highest populations gave the highest yields and for Hardee the highest degree of lodging. The highest yield was obtained with 0,40 m row/width and 25 plants per meter of row. At the lowest row seeding rate (15 plants/meter) row width differences (0,40 m or 0,60 m or 0,80 m) did not affect yield.Este trabalho objetivou verificar os efeitos de espaçamento entre fileiras e de número de plantas por metro de fileira (densidade de semeadura), bem como suas interações sobre a produtividade da soja (Glycine max (L.) Merrill). Para tanto, no ano agrícola de 1977/78, foi instalado, no Campo Experimental da Soja da Unidade de Execução de Pesquisa de Âmbito Estadual-UEPAE/Pelotas, da EMBRAPA, Experimento Fatorial 33, com quatro repetições, no delineamento de blocos casualizados. Foram avaliados os efeitos de cultivar, de espaçamento, de densidade de semeadura e das interações de primeira ordem, todos significativos ao nível de 1% de probabilidade. IAS 4 foi a cultivar mais produtiva, significativamente superior à IAS 2, que apresentou a arquitetura de planta mais apropriada à competição intragenotípica sob estresse hídrico. Nessas condições, Hardee não mostrou o mesmo potencial genético de IAS 2 e IAS 4, de manter certa estabilidade de rendimento quando aumentou a área disponível para utilização pelas plantas. Às maiores populações corresponderam os maiores rendimentos e, para Hardee, o maior grau de acamamento. O maior rendimento foi obtido com o espaçamento entre fileiras de 0,40 m e densidade de 25 plantas por metro de fileira. Na menor densidade (15 plantas por metro de fileira), as diferenças de espaçamento (0,40 m ou 0,60 m ou 0,80 m) não influenciaram o rendimento.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraJunior, Francisco de Jesus VernettiVernetti, Francisco de Jesus2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15289Pesquisa Agropecuaria Brasileira; v.18, n.5, maio 1983; 519-526Pesquisa Agropecuária Brasileira; v.18, n.5, maio 1983; 519-5261678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15289/9120info:eu-repo/semantics/openAccess2014-04-16T18:55:14Zoai:ojs.seer.sct.embrapa.br:article/15289Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T18:55:14Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Response of three soybean cultivars to three spacings and three seeding densities, in Pelotas, RS Resposta de três cultivares de soja a três espaçamentos e três densidades de semeadura, em Pelotas, RS |
title |
Response of three soybean cultivars to three spacings and three seeding densities, in Pelotas, RS |
spellingShingle |
Response of three soybean cultivars to three spacings and three seeding densities, in Pelotas, RS Junior, Francisco de Jesus Vernetti Gycine max (L) Merrill Glycine max (L.) Merrill |
title_short |
Response of three soybean cultivars to three spacings and three seeding densities, in Pelotas, RS |
title_full |
Response of three soybean cultivars to three spacings and three seeding densities, in Pelotas, RS |
title_fullStr |
Response of three soybean cultivars to three spacings and three seeding densities, in Pelotas, RS |
title_full_unstemmed |
Response of three soybean cultivars to three spacings and three seeding densities, in Pelotas, RS |
title_sort |
Response of three soybean cultivars to three spacings and three seeding densities, in Pelotas, RS |
author |
Junior, Francisco de Jesus Vernetti |
author_facet |
Junior, Francisco de Jesus Vernetti Vernetti, Francisco de Jesus |
author_role |
author |
author2 |
Vernetti, Francisco de Jesus |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Junior, Francisco de Jesus Vernetti Vernetti, Francisco de Jesus |
dc.subject.por.fl_str_mv |
Gycine max (L) Merrill Glycine max (L.) Merrill |
topic |
Gycine max (L) Merrill Glycine max (L.) Merrill |
description |
This work aimed to determine the effects of cultivars, row width, and distance between plants in a row (row seeding rate), as well as their respective interactions, on the yield of soybeans (Glycine max (L.) Merrill), in the 1977/78 crops season, a 33 factorial experiment, with four replicates, arranged in a randomized blocks design, was planted at the State Experimental Research Unit (UEPAE), Pelotas, RS. Cultivar, row width and row seeding rate and their interactions were evaluated; all were significant at the 1% level of probability. IAS 4 had the highest yield, significantly superior to the IAS 2 yield. IAS 2 showed the plant canopy most appropriate to intragenotypic competition under water stress conditions, whereas Hardee did not show the same genetic potencial as IAS 2 and IAS 4 to maintain a fair yield stability when the area available for plant growth was increased. The highest populations gave the highest yields and for Hardee the highest degree of lodging. The highest yield was obtained with 0,40 m row/width and 25 plants per meter of row. At the lowest row seeding rate (15 plants/meter) row width differences (0,40 m or 0,60 m or 0,80 m) did not affect yield. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-16 |
dc.type.none.fl_str_mv |
|
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://seer.sct.embrapa.br/index.php/pab/article/view/15289 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/15289 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/15289/9120 |
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 |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.18, n.5, maio 1983; 519-526 Pesquisa Agropecuária Brasileira; v.18, n.5, maio 1983; 519-526 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416656106553344 |