Close-spaced plant arrangement optimizes castor biomass and seed yields in tropical fall–winter conditions
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1002/csc2.20708 http://hdl.handle.net/11449/234246 |
Resumo: | The high seed yield and optimum harvesting of short-height castor (Ricinus communis L.) genotypes have enabled its large-scale cultivation and introduction in the Brazilian cropping systems. Thus, studies to optimize plant density are essential to adequate plant population since this is the key management to influence castor biomass and seed production. This study aimed to evaluate the influence of plant density by altering plant arrangement (i.e., spacing between and within rows) on growth, biomass production and partitioning, and seed yield of a castor cultivar in fall–winter cropping season. Field experiments were conducted over two seasons in southeastern Brazil. Two close-spaced (0.45 × 0.23 m and 0.45 × 0.44 m) and a traditional (0.90 × 0.44 m) plant arrangements were tested. Plant arrangements influenced plant growth, biomass production and partitioning, and seed yield. Compared to the traditional layout, close-spaced plant arrangements resulted in thinner basal stems and lower leaf area per plant, but increased leaf area index. The plant arrangement with higher plant density increased per-unit area production of stem plus leaf biomass (43–48%), which also resulted in increased (24%) seed yield, compared to traditional layout. Although a greater amount of biomass was partitioned to reproductive organs in close-spaced plant arrangements, this allocation was not enough to influence the harvest index. Therefore, the adaptive performance of short-height castor adjusting biomass partitioning to maximize stem plus leaf biomass production and seed yield at close-spaced plant arrangement demonstrated this to be a suitable option to cultivate in the Brazilian fall–winter season. |
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spelling |
Close-spaced plant arrangement optimizes castor biomass and seed yields in tropical fall–winter conditionsThe high seed yield and optimum harvesting of short-height castor (Ricinus communis L.) genotypes have enabled its large-scale cultivation and introduction in the Brazilian cropping systems. Thus, studies to optimize plant density are essential to adequate plant population since this is the key management to influence castor biomass and seed production. This study aimed to evaluate the influence of plant density by altering plant arrangement (i.e., spacing between and within rows) on growth, biomass production and partitioning, and seed yield of a castor cultivar in fall–winter cropping season. Field experiments were conducted over two seasons in southeastern Brazil. Two close-spaced (0.45 × 0.23 m and 0.45 × 0.44 m) and a traditional (0.90 × 0.44 m) plant arrangements were tested. Plant arrangements influenced plant growth, biomass production and partitioning, and seed yield. Compared to the traditional layout, close-spaced plant arrangements resulted in thinner basal stems and lower leaf area per plant, but increased leaf area index. The plant arrangement with higher plant density increased per-unit area production of stem plus leaf biomass (43–48%), which also resulted in increased (24%) seed yield, compared to traditional layout. Although a greater amount of biomass was partitioned to reproductive organs in close-spaced plant arrangements, this allocation was not enough to influence the harvest index. Therefore, the adaptive performance of short-height castor adjusting biomass partitioning to maximize stem plus leaf biomass production and seed yield at close-spaced plant arrangement demonstrated this to be a suitable option to cultivate in the Brazilian fall–winter season.Dep. of Crop Science College of Agricultural Sciences São Paulo State Univ. (UNESP), São PauloICL América do Sul, São PauloDep. of Soil Water and Climate Univ. of MinnesotaDep. of Crop Science College of Agricultural Sciences São Paulo State Univ. (UNESP), São PauloUniversidade Estadual Paulista (UNESP)ICL América do SulUniv. of MinnesotaKotz-Gurgacz, Tailene E. [UNESP]Soratto, Rogério P. [UNESP]Guidorizzi, Fernando V. C. [UNESP]Gilabel, Amanda P. [UNESP]Souza, Emerson F. C.2022-05-01T15:13:38Z2022-05-01T15:13:38Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1002/csc2.20708Crop Science.1435-06530011-183Xhttp://hdl.handle.net/11449/23424610.1002/csc2.207082-s2.0-85126070691Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCrop Scienceinfo:eu-repo/semantics/openAccess2024-04-30T15:57:55Zoai:repositorio.unesp.br:11449/234246Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:14:39.045974Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Close-spaced plant arrangement optimizes castor biomass and seed yields in tropical fall–winter conditions |
title |
Close-spaced plant arrangement optimizes castor biomass and seed yields in tropical fall–winter conditions |
spellingShingle |
Close-spaced plant arrangement optimizes castor biomass and seed yields in tropical fall–winter conditions Kotz-Gurgacz, Tailene E. [UNESP] |
title_short |
Close-spaced plant arrangement optimizes castor biomass and seed yields in tropical fall–winter conditions |
title_full |
Close-spaced plant arrangement optimizes castor biomass and seed yields in tropical fall–winter conditions |
title_fullStr |
Close-spaced plant arrangement optimizes castor biomass and seed yields in tropical fall–winter conditions |
title_full_unstemmed |
Close-spaced plant arrangement optimizes castor biomass and seed yields in tropical fall–winter conditions |
title_sort |
Close-spaced plant arrangement optimizes castor biomass and seed yields in tropical fall–winter conditions |
author |
Kotz-Gurgacz, Tailene E. [UNESP] |
author_facet |
Kotz-Gurgacz, Tailene E. [UNESP] Soratto, Rogério P. [UNESP] Guidorizzi, Fernando V. C. [UNESP] Gilabel, Amanda P. [UNESP] Souza, Emerson F. C. |
author_role |
author |
author2 |
Soratto, Rogério P. [UNESP] Guidorizzi, Fernando V. C. [UNESP] Gilabel, Amanda P. [UNESP] Souza, Emerson F. C. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) ICL América do Sul Univ. of Minnesota |
dc.contributor.author.fl_str_mv |
Kotz-Gurgacz, Tailene E. [UNESP] Soratto, Rogério P. [UNESP] Guidorizzi, Fernando V. C. [UNESP] Gilabel, Amanda P. [UNESP] Souza, Emerson F. C. |
description |
The high seed yield and optimum harvesting of short-height castor (Ricinus communis L.) genotypes have enabled its large-scale cultivation and introduction in the Brazilian cropping systems. Thus, studies to optimize plant density are essential to adequate plant population since this is the key management to influence castor biomass and seed production. This study aimed to evaluate the influence of plant density by altering plant arrangement (i.e., spacing between and within rows) on growth, biomass production and partitioning, and seed yield of a castor cultivar in fall–winter cropping season. Field experiments were conducted over two seasons in southeastern Brazil. Two close-spaced (0.45 × 0.23 m and 0.45 × 0.44 m) and a traditional (0.90 × 0.44 m) plant arrangements were tested. Plant arrangements influenced plant growth, biomass production and partitioning, and seed yield. Compared to the traditional layout, close-spaced plant arrangements resulted in thinner basal stems and lower leaf area per plant, but increased leaf area index. The plant arrangement with higher plant density increased per-unit area production of stem plus leaf biomass (43–48%), which also resulted in increased (24%) seed yield, compared to traditional layout. Although a greater amount of biomass was partitioned to reproductive organs in close-spaced plant arrangements, this allocation was not enough to influence the harvest index. Therefore, the adaptive performance of short-height castor adjusting biomass partitioning to maximize stem plus leaf biomass production and seed yield at close-spaced plant arrangement demonstrated this to be a suitable option to cultivate in the Brazilian fall–winter season. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-05-01T15:13:38Z 2022-05-01T15:13:38Z 2022-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1002/csc2.20708 Crop Science. 1435-0653 0011-183X http://hdl.handle.net/11449/234246 10.1002/csc2.20708 2-s2.0-85126070691 |
url |
http://dx.doi.org/10.1002/csc2.20708 http://hdl.handle.net/11449/234246 |
identifier_str_mv |
Crop Science. 1435-0653 0011-183X 10.1002/csc2.20708 2-s2.0-85126070691 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Crop Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129177757417472 |