Effect of the planting season on carrot cultivars growth and yield in the brazilian semiarid region

• Autor(a) principal: Gomes, Victor Emmanuel de Vasconcelos
• Data de Publicação: 2021
• Outros Autores: Grangeiro, Leilson Costa, Ferreira, Núbia Marisa, Lacerda, Rodolfo Rodrigo de Almeida, Almeida, Antônio Fabrício de, Silva, Jorge Luiz Alves da
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Acta Scientiarum. Agronomy (Online)
• Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/51831
• topic: Daucus carota L.; adaptability; performance; high temperatures.; Daucus carota L.; adaptability; performance; high temperatures.

In regions with high temperatures, carrot cultivation is impracticable, as high temperatures tend to reduce yield and quality of the product. However, with the advent of summer cultivars, carrot cultivation in these regions has become viable. The aim of this work was to evaluate the performance of ten carrot cultivars in different planting seasons. The experiments were carried out at the Rafael Fernandes Experimental Farm of the Federal Rural Semiarid University (UFERSA). The experiments were carried out in May, June, July and August of 2017. The experimental design was a randomized block with ten treatments and four repetitions. The characteristics that were evaluated were the root classification (long, average and short roots); commercial, non-commercial and total yield; dry plant weight and root fresh weight. Both the planting season and the cultivar played important roles in agronomic performance throughout the experimental period. In May and June, the highest average yields and plant growth were obtained (43 and 45 t ha-1 yield, respectively). Hybrid cultivars showed better performance than open-pollinated cultivars in terms of yield. The Brasília, BRS Planalto, and Kuronan varieties showed poor performance in all the evaluated characteristics.