Productivity and quality of soybean seeds as a function of potassium application
Cultural practices affect the production and physiological quality of soybean seeds, however the Cerrado these studies are still scarce. Therefore, this study aimed to evaluate the production and physiological quality of soybean seeds (cv. Monsoy 9350) in Piauí Cerrado under the influence of times...
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Universidade Estadual de Londrina
2014-02-01
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Online Access: | http://www.uel.br/revistas/uel/index.php/semagrarias/editor/submission/11656 |
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doaj-23f8cf0e07b644fdb56f438b8d694e822020-11-24T23:56:10ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592014-02-013518910010.5433/1679-0359.2014v35n1p89Productivity and quality of soybean seeds as a function of potassium applicationFabiano André Petter 0Adriana Ursulino Alves 1Jodean Alves da Silva2Edson de Almeida Cardoso3 Tamnata Ferreira Alixandre 4Fernandes Antônio de Almeida 5Leandro Pereira Pacheco 6Universidade Federal do PiauíUniversidade Federal do PiauíUniversidade Federal do PiauíUniversidade Federal do PiauíUniversidade Federal do PiauíUniversidade Federal do PiauíUniversidade Federal do Piauí Cultural practices affect the production and physiological quality of soybean seeds, however the Cerrado these studies are still scarce. Therefore, this study aimed to evaluate the production and physiological quality of soybean seeds (cv. Monsoy 9350) in Piauí Cerrado under the influence of times and doses of potassium. We used a randomized block design in a factorial design, the treatments consisted of the combination of five doses of potassium (30 60, 90, 120 and 150 kg K2O ha-1) + aditional treatment (zero kg ha-1) applied four times: I. 100% at planting, 50 % at planting and 50% at 30 days after sowing (DAS); II. 100% at 30 DAS; III. 50% at 20 DAS and IV. 50% at 40 DAS, with four replications. The yield and harvest index of grain, thousand seed weight, seedling length, seedling dry weight, rate of germination, germination and first count. Regardless of the applied dose, there was no effect of application times on the parameters evaluated. Except for the germination and germination speed index, all other parameters were significantly influenced by K rates. The length and seedling dry weight increased with the increasing use of K, showing greater seed vigor. Doses of 80 to 95 kg ha-1 K2O provide the best results for all parameters evaluated. http://www.uel.br/revistas/uel/index.php/semagrarias/editor/submission/11656Glycine max; Yield; Fertilization; Germination; Vigor |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Fabiano André Petter Adriana Ursulino Alves Jodean Alves da Silva Edson de Almeida Cardoso Tamnata Ferreira Alixandre Fernandes Antônio de Almeida Leandro Pereira Pacheco |
spellingShingle |
Fabiano André Petter Adriana Ursulino Alves Jodean Alves da Silva Edson de Almeida Cardoso Tamnata Ferreira Alixandre Fernandes Antônio de Almeida Leandro Pereira Pacheco Productivity and quality of soybean seeds as a function of potassium application Semina: Ciências Agrárias Glycine max; Yield; Fertilization; Germination; Vigor |
author_facet |
Fabiano André Petter Adriana Ursulino Alves Jodean Alves da Silva Edson de Almeida Cardoso Tamnata Ferreira Alixandre Fernandes Antônio de Almeida Leandro Pereira Pacheco |
author_sort |
Fabiano André Petter |
title |
Productivity and quality of soybean seeds as a function of potassium application |
title_short |
Productivity and quality of soybean seeds as a function of potassium application |
title_full |
Productivity and quality of soybean seeds as a function of potassium application |
title_fullStr |
Productivity and quality of soybean seeds as a function of potassium application |
title_full_unstemmed |
Productivity and quality of soybean seeds as a function of potassium application |
title_sort |
productivity and quality of soybean seeds as a function of potassium application |
publisher |
Universidade Estadual de Londrina |
series |
Semina: Ciências Agrárias |
issn |
1676-546X 1679-0359 |
publishDate |
2014-02-01 |
description |
Cultural practices affect the production and physiological quality of soybean seeds, however the Cerrado these studies are still scarce. Therefore, this study aimed to evaluate the production and physiological quality of soybean seeds (cv. Monsoy 9350) in Piauí Cerrado under the influence of times and doses of potassium. We used a randomized block design in a factorial design, the treatments consisted of the combination of five doses of potassium (30 60, 90, 120 and 150 kg K2O ha-1) + aditional treatment (zero kg ha-1) applied four times: I. 100% at planting, 50 % at planting and 50% at 30 days after sowing (DAS); II. 100% at 30 DAS; III. 50% at 20 DAS and IV. 50% at 40 DAS, with four replications. The yield and harvest index of grain, thousand seed weight, seedling length, seedling dry weight, rate of germination, germination and first count. Regardless of the applied dose, there was no effect of application times on the parameters evaluated. Except for the germination and germination speed index, all other parameters were significantly influenced by K rates. The length and seedling dry weight increased with the increasing use of K, showing greater seed vigor. Doses of 80 to 95 kg ha-1 K2O provide the best results for all parameters evaluated.
|
topic |
Glycine max; Yield; Fertilization; Germination; Vigor |
url |
http://www.uel.br/revistas/uel/index.php/semagrarias/editor/submission/11656 |
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