Variability among BRS 8381 soybean (Glycine max (L.) Merrill.) yield components under different liming rates and sowing densities on a savanna in Roraima, Brazil

Oscar José Smiderle; Daniel Gianluppi; Vicente Gianluppi; Aline das Graças Souza

Ayuda

Variability among BRS 8381 soybean (Glycine max (L.) Merrill.) yield components under different liming rates and sowing densities on a savanna in Roraima, Brazil

Smiderle, Oscar José ^[1] ; Gianluppi, Daniel ^[1] ; Gianluppi, Vicente ^[1] ; das Graças Souza, Aline ^[2]
1. [1] Brazilian Agricultural Research Corporation
  
  Brazilian Agricultural Research Corporation
  
  Brasil
2. [2] Universidade Federal de Lavras
  
  Universidade Federal de Lavras
  
  Brasil
Localización: Revista Colombiana de Investigaciones Agroindustriales, ISSN-e 2422-4456, Vol. 3, Nº. 1, 2016 (Ejemplar dedicado a: Revista Colombiana de Investigaciones Agroindustriales), págs. 49-55
Idioma: inglés
Títulos paralelos:
- Variabilidade em componentes da produção de soja (Glycine max (L.) Merrill.) BRS 8381 em diferentes níveis de calagens e densidade de plantas no cerrado de Roraima, Brasil
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Resumen
- español
  The aim of this research was to evaluate variability among BRS 8381 soybean yield components, under different sowing densities and two amounts of limestone applications on a savanna in Roraima. The seeds were sown to provide five plant populations (10, 14, 18, 22 and 26 linear m-1), in plots with the application of 1.5 and 4.5 t ha-1 of limestone. Experimental plots consisted of four 5-meter long do 5 rows spaced 0.50 cm from each other. The experimental design was of randomized blocks in a factorial scheme with four replications. To evaluate the proposed variables, plants placed within the measurable area of each plot were collected and the following parameters were assessed: plant height, height of insertion of the first pod, stem diameter, number of nodes on the main stem, number of stems per plant, total number of pods per plant, number of grains per pod. Of the total number of plants harvested, 20 were randomly selected and evaluated individually. In addition to the aforementioned parameters, number of pods on the four upper nodes of the plant, dry mass of the plant and dry mass of grain were also evaluated. The apparent harvest index, 100-grain mass and yield estimate were also obtained. The BRS 8381 cultivar grown with 10 plants per linear meter of row presented greater plant dry mass, dry mass of grain, dry mass of hull and number of pods and twigs in both environments. The maximum grain yield was obtained with a plant distribution of 22 plants m-1 of row. The cultivar BRS 8381 is recommended with liming at 4.5 t ha-1 of dolomitic limestone under the edaphoclimatic conditions of the present study, due to its high phenotypic plasticity and higher performance in the production components. Para citar este artículoSmiderle, J., Gianluppi, D., Gianluppi, V. & Souza, A. (2016). Variability among BRS 8381 soybean (Glycine max (L.) Merrill.) yield components under different liming rates and sowing densities on a savanna in Roraima, Brazil. Rev. Colomb. Investig. Agroindustriales, 3(1), 49-55. DOI: http://dx.doi.org/10.23850/24220582.350
- English
  The aim of this research was to evaluate variability among BRS 8381 soybean yield components, under different sowing densities and two amounts of limestone applications on a savanna in Roraima. The seeds were sown to provide five plant populations (10, 14, 18, 22 and 26 linear m-1), in plots with the application of 1.5 and 4.5 t ha-1 of limestone. Experimental plots consisted of four 5-meter long do 5 rows spaced 0.50 cm from each other. The experimental design was of randomized blocks in a factorial scheme with four replications. To evaluate the proposed variables, plants placed within the measurable area of each plot were collected and the following parameters were assessed: plant height, height of insertion of the first pod, stem diameter, number of nodes on the main stem, number of stems per plant, total number of pods per plant, number of grains per pod. Of the total number of plants harvested, 20 were randomly selected and evaluated individually. In addition to the aforementioned parameters, number of pods on the four upper nodes of the plant, dry mass of the plant and dry mass of grain were also evaluated. The apparent harvest index, 100-grain mass and yield estimate were also obtained. The BRS 8381 cultivar grown with 10 plants per linear meter of row presented greater plant dry mass, dry mass of grain, dry mass of hull and number of pods and twigs in both environments. The maximum grain yield was obtained with a plant distribution of 22 plants m-1 of row. The cultivar BRS 8381 is recommended with liming at 4.5 t ha-1 of dolomitic limestone under the edaphoclimatic conditions of the present study, due to its high phenotypic plasticity and higher performance in the production components. Para citar este artículoSmiderle, J., Gianluppi, D., Gianluppi, V. & Souza, A. (2016). Variability among BRS 8381 soybean (Glycine max (L.) Merrill.) yield components under different liming rates and sowing densities on a savanna in Roraima, Brazil. Rev. Colomb. Investig. Agroindustriales, 3(1), 49-55. DOI: http://dx.doi.org/10.23850/24220582.350
- português
  O objetivo foi avaliar a variabilidade em componentes da produção de soja BRS 8381, estabelecida em diferentes distribuições de plantas cultivadas em duas calagens de solo em cerrado de Roraima. As sementes utilizadas foram distribuídas em cinco populações de plantas (10, 14, 18, 22 e 26 m-1 linear), em parcelas com 1,5 e 4,5 t ha-1 de calcáreo. As parcelas foram constituídas por quatro linhas de cinco m de comprimento espaçadas entre si de 0,50 m. O delineamento experimental utilizado foi de blocos ao acaso em esquema bifatorial, com quatro repetições. Para avaliação das variáveis propostas coletou-se as plantas distribuídas na área útil de cada parcela, sendo determinadas: altura de planta, inserção da primeira vagem, diâmetro do caule, número de nós na haste principal, número de hastes por planta, número de vagens total por planta, número de grãos por vagem. Do total de plantas colhidas, 20 foram selecionadas, ao acaso, e avaliadas individualmente quanto aos parâmetros já mencionados, além do número de vagens nos quatro últimos nós da planta, a massa seca da planta e a massa seca de grãos. Também foram obtidos o índice de colheita aparente, massa de 100 grãos e estimativa da produtividade. A cv. BRS 8183 quando cultivada com 10 plantas por metro linear de fileira apresenta maior massa seca de planta, massa seca dos grãos, massa seca da casca, número de vagens e de ramos, nos dois ambientes. Na distribuição com 22 plantas m-1 de fileira é obtida a máxima produtividade de grãos. A cultivar BRS 8381, é indicada na calagem com 4,5 t ha-1 de calcário dolomítico nas condições edafoclimáticas da presente pesquisa, devido apresentar alta plasticidade fenotípica, e maior desempenho nos componentes de produção. Para citar este artículoSmiderle, J., Gianluppi, D., Gianluppi, V. & Souza, A. (2016). Variability among BRS 8381 soybean (Glycine max (L.) Merrill.) yield components under different liming rates and sowing densities on a savanna in Roraima, Brazil. Rev. Colomb. Investig. Agroindustriales, 3(1), 49-55. DOI: http://dx.doi.org/10.23850/24220582.350