Desempenho de genótipos de soja-hortaliça de ciclo precoce [Glycine max (L.) Merril] em diferentes densidades
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Data
2008-04-01
Autores
Charlo, Hamilton César de O. [UNESP]
Castoldi, Renata [UNESP]
Vargas, Pablo Forlan [UNESP]
Braz, Leila Trevizan [UNESP]
Mendonça, José Lindorico de
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Editor
Editora da Universidade Federal de Lavras (UFLA)
Resumo
Objetivando-se avaliar o desempenho de dois genótipos de soja-hortaliça de ciclo precoce [Glycine max (L.) Merril], em diferentes densidades, foi instalado um ensaio, em área experimental do Setor de Olericultura e Plantas Aromático-Medicinais, pertencente ao Departamento de Produção Vegetal, nas dependências da Faculdade de Ciências Agrárias e Veterinárias (FCAV-UNESP), Campus de Jaboticabal-SP. O delineamento experimental foi o de parcelas subdivididas, adotando-se nas parcelas os genótipos e nas subparcelas as densidades, com quatro repetições por tratamento. Cada parcela experimental foi constituída por quatro linhas de 4,5m de plantio, com densidades de 20, 10 e 7 plantas por metro e 0,60m nas entrelinhas, sendo consideradas para avaliação 20 plantas por parcela, das duas linhas centrais. As sementes foram semeadas em bandejas de poliestireno expandido de 128 células, contendo substrato Plantmax Hortaliças®. O transplantio ocorreu dez dias após a semeadura, em solo devidamente preparado, conforme recomendações para a cultura. A colheita foi realizada quando os legumes estavam em estádio reprodutivo R6. Avaliaram-se os genótipos JLM010 e CNPSOI quanto às características: número médio de legumes por planta, número médio de sementes por legume, massa fresca de 100 sementes e produtividade estimada de grãos imaturos. Com base nos resultados obtidos concluiu-se que o genótipo JLM010 é o mais recomendado e deve ser plantado na densidade de 7 plantas por metro.
With the aim of evaluating the performance of two genotypes of early-cycle soybeans [Glycine max (L.) Merril] in different spacings, a study was carried out in the experimental area of the Sector of Vegetable Crops and Aromatic Medicinal Plants, belonging to the Department of Crop Sciences, College of Agricultural and Veterinary Sciences (FCAV-UNESP), Jaboticabal Campus-SP. The experimental design used was the one of subdivided parcels, each parcel representing the genotypes and the subparcels being the densities, where four replications were used for each treatment. Plots comprised four rows measuring with populations of 20, 10 and 7 plants by meter, and 0.60m between rows, where each parcel consisted of 20 plants. Seeds were sowed in expanded polystyrene trays with 128 pyramidal cells, contend substratum Plantmax Hortaliças®. Transplanting was performed ten days after sowing, to a soil previously fertilized as recommended to the crop. Harvesting was performed when pods reached the reproductive stage R6. The following genotypes were used: JLM010 and CNPSOI. The mean earliness, mean number of pods per plant, mean number of seeds per pod, fresh weight of 100 seeds and estimated yield of immature grains were measured. Results showed that the genotype JLM010 is the best for vegetable soybean production, because a higher fresh weight of 100 seeds was obtained with a population of 7 plants by meter.
With the aim of evaluating the performance of two genotypes of early-cycle soybeans [Glycine max (L.) Merril] in different spacings, a study was carried out in the experimental area of the Sector of Vegetable Crops and Aromatic Medicinal Plants, belonging to the Department of Crop Sciences, College of Agricultural and Veterinary Sciences (FCAV-UNESP), Jaboticabal Campus-SP. The experimental design used was the one of subdivided parcels, each parcel representing the genotypes and the subparcels being the densities, where four replications were used for each treatment. Plots comprised four rows measuring with populations of 20, 10 and 7 plants by meter, and 0.60m between rows, where each parcel consisted of 20 plants. Seeds were sowed in expanded polystyrene trays with 128 pyramidal cells, contend substratum Plantmax Hortaliças®. Transplanting was performed ten days after sowing, to a soil previously fertilized as recommended to the crop. Harvesting was performed when pods reached the reproductive stage R6. The following genotypes were used: JLM010 and CNPSOI. The mean earliness, mean number of pods per plant, mean number of seeds per pod, fresh weight of 100 seeds and estimated yield of immature grains were measured. Results showed that the genotype JLM010 is the best for vegetable soybean production, because a higher fresh weight of 100 seeds was obtained with a population of 7 plants by meter.
Descrição
Palavras-chave
Glycine max, Yield, densities, Glycine max, Produtividade, densidades
Como citar
Ciência e Agrotecnologia. Editora da Universidade Federal de Lavras (UFLA), v. 32, n. 2, p. 630-634, 2008.