Different shapes and sizes of seeds on the productivity of the culture of corn

• Autor(a) principal: Trogello, Emerson
• Data de Publicação: 2013
• Outros Autores: Modolo, Alcir Jose, Portes, Álvaro Fernando, Brusamarello, Antônio Pedro
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Gaúcha (Online)
• Texto Completo: http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/119
• topic: Seed processing unit. Seed vigour.; Unidade de beneficiamento de sementes. Vigor de sementes.

The final yield of crops is influenced by several factors, the quality of seed deposited to the soil at planting being one of the most important. Large seeds tend to have higher strength and be better equipped for the emergence, development and final yield of crops. The experiment was conducted at the Experimental UTFPR Campus of Pato Branco, PR, and aimed to evaluate the development and productivity of 14 different sizes and shapes of seed corn. Different shapes and sizes were obtained in the classification of a processing unit for seeds of maize (UBS) by means of oblong and round sieves. The experimental design was randomized blocks with four repetitions, totaling 56 experimental units, each consisting of five rows of sowing and 4 meters in length. It evaluated the percentage of germination, final plant height, ear diameter, ear length, number of kernel rows per ear, number of kernels per row, thousand grain weight and average yield of corn. It was concluded that the different sizes and shapes of seeds did not affect significantly the parameters evaluated.