Productive potential of upland rice under conventional and organic farming systems

Gmach, Janice Regina; Coelho, Cileide Maria Medeiros; Parizotto, Círio; Heberle, Isaac; Prezzi, Heitor Amadeu; Mafioleti, André Tesser; Souza, Clovis Arruda; Miquelluti, David José

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dc.creator	Gmach, Janice Regina
dc.creator	Coelho, Cileide Maria Medeiros
dc.creator	Parizotto, Círio
dc.creator	Heberle, Isaac
dc.creator	Prezzi, Heitor Amadeu
dc.creator	Mafioleti, André Tesser
dc.creator	Souza, Clovis Arruda
dc.creator	Miquelluti, David José
dc.date	2018-07-16
dc.date.accessioned	2022-03-21T20:07:53Z
dc.date.available	2022-03-21T20:07:53Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/1619
dc.identifier	10.14295/cs.v9i1.1619
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77835
dc.description	This paper aimed to evaluate the genetic diversity of upland rice varieties, determine the components that contributes most to productivity and evaluate the yield of varieties grown in conventional and organic farming systems. The experiment was carried out during the 2011/2012, 2012/2013 and 2013/2014 crop years, with 11 local upland rice varieties (Agulha, Rosa 15, Mato Grosso, Gomes, Preto, Argentino, Kinsel, Camilo, Piriquito, Casca Roxa and Caipira) and two commercial varieties (Primavera and Cambará). Genetic diversity was observed among the varieties for all evaluated variables and the thousand grain weight was the character that contributed most to the divergence between varieties. The number of panicles m-2 was the yield component that presented the highest association with grain yield of varieties in organic farming systems. The average yield of the varieties was 2.303, 1.711 and 3.534 kg ha-1 for the seasons 1, 2 and 3 respectively, and the highest yields were obtained with earlier sowing and temperature during grains maturation about 20°C. The ‘Piriquito’, ‘Argentino’, ‘Gomes’ and ‘Kinsel’ varieties presented yield above 2.000 kg ha-1 for all seasons, in both systems, indicating better adaptation to the region of the study and can be indicated as the most promising for the crop under organic cultivation.	en-US
dc.description	This paper aimed to evaluate the genetic diversity of upland rice varieties, determine the components that contributes most to productivity and evaluate the yield of varieties grown in conventional and organic farming systems. The experiment was carried out during the 2011/2012, 2012/2013 and 2013/2014 crop years, with 11 local upland rice varieties (Agulha, Rosa 15, Mato Grosso, Gomes, Preto, Argentino, Kinsel, Camilo, Piriquito, Casca Roxa and Caipira) and two commercial varieties (Primavera and Cambará). Genetic diversity was observed among the varieties for all evaluated variables and the thousand grain weight was the character that contributed most to the divergence between varieties. The number of panicles m-2 was the yield component that presented the highest association with grain yield of varieties in organic farming systems. The average yield of the varieties was 2.303, 1.711 and 3.534 kg ha-1 for the seasons 1, 2 and 3 respectively, and the highest yields were obtained with earlier sowing and temperature during grains maturation about 20°C. The ‘Piriquito’, ‘Argentino’, ‘Gomes’ and ‘Kinsel’ varieties presented yield above 2.000 kg ha-1 for all seasons, in both systems, indicating better adaptation to the region of the study and can be indicated as the most promising for the crop under organic cultivation.	pt-BR
dc.format	application/pdf
dc.format	application/pdf
dc.language	eng
dc.language	por
dc.publisher	Federal University of Piauí	en-US
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/1619/519
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/1619/675
dc.rights	Copyright (c) 2018 Janice Regina Gmach, Cileide Maria Medeiros Coelho, Círio Parizotto, Isaac Heberle, Heitor Amadeu Prezzi, André Tesser Mafioleti, Clovis Arruda Souza, David José Miquelluti	en-US
dc.source	Comunicata Scientiae; Vol. 9 No. 1 (2018); 70-80	en-US
dc.source	Comunicata Scientiae; v. 9 n. 1 (2018); 70-80	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.subject	characterization	en-US
dc.subject	genetic variability	en-US
dc.subject	path analysis	en-US
dc.subject	characterization	pt-BR
dc.subject	genetic variability	pt-BR
dc.subject	path analysis	pt-BR
dc.title	Productive potential of upland rice under conventional and organic farming systems	en-US
dc.title	Productive potential of upland rice under conventional and organic farming systems	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	Artigo científico	pt-BR