Seeding densities and productivity of rice cultivars in the West Border of Rio Grande do Sul State, Brazil
| Autor: | Willians Moraes Cereta Bernardes, Leandro Galon, Amauri Nelson Beutler, Glauber Monçon Fipke, Ignacio Aspiazú, Germani Concenço, Sérgio Guimarães, Anderson Moraes de Lima |
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| Jazyk: | portugalština |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Pesquisa Agropecuária Gaúcha, Vol 20, Iss 1/2, Pp 51-58 (2014) |
| Druh dokumentu: | article |
| ISSN: | 0104-9070 2595-7686 |
| Popis: | The objective of this work was to study the influence of different seeding rates and cultivars over flooded rice yield at the west border of Rio Grande do Sul State. The experimental design was a randomized blocks with four replicates. The treatments were arranged in factorial scheme 4 x 3, in which factor A was the seeding rate (40, 60, 80 and 100kg ha-1) and B the cultivars (BR-IRGA 409, Olimar and Puitá Inta-CL). The increase in seeding rate from 40 to 100 kg ha-1 reduces linearly the tilled number, filled, total grains for panicle and number of panicle per m2. The greater rice grains yield in cultivars Olimar and Puitá Inta-CL is obtained in seeding rate of 66 and 77 kg ha-1 respectively. On the other hand, the yield of cultivar BR-IRGA 409 was not influenced by seeding rate. The yield grain was greater in cultivar Puitá Inta-CL, except with the seeding rate of 80 kg ha-1, in which it was the second most productive cultivar. |
| Databáze: | Directory of Open Access Journals |
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