Özet:

Abstract The radish is a Brassicaceae with small size, adapted to regions with mild temperatures between 13 and 20 °C and short days. However, there are cultivars adapted to high-temperature conditions, which has allowed the cultivation of this tuberous vegetable throughout the year, even in tropical regions. The present work had as objective evaluate the agronomic performance and yield of six cultivars of radish, in Uruçuí - PI. The experimental design was in randomized blocks, with four replicates and six cultivars. Harvest was performed according to the cycle of each cultivar. Number of leaves per plant, fresh and dry mass of shoot and root, diameter, and root length and yield were evaluated. The cultivars Margaret Queen and Crimson Gigante presented better root development, both in diameter and length, and obtained higher productivity per ha, being these two the most indicated for the region. The Sparkler cultivar was one of the ones that produced the highest fresh mass of the aerial part, but it obtained lower commercial roots yield, being the least indicated for the municipality of Uruçuí-PI. Author Biographies Romário da Silva Moreira, Universidade Estadual do Piaui - UESPI, Campus de Uruçuí/Uruçuí-PI Graduando em Agronomia - UESPI Marlei Rosa dos Santos, Universidade Estadual do Piaui - UESPI, Campus de Uruçuí/Uruçuí-PI Professora da Universidade Estadual do Piaui - UESPI - Campus de Uruçuí-PI Agronomia - Fitotecnia Ronildo Almeida de Sousa, Universidade Estadual do Piaui - UESPI, Campus de Uruçuí/Uruçuí-PI Graduando em Agronomia - UESPI Rubenalto da Silva Almeida, Universidade Estadual do Piaui - UESPI, Campus de Uruçuí/Uruçuí-PI Graduando em Agronomia - UESPI Francisco de Assis Gomes Junior, Universidade Estadual do Piaui - UESPI, Campus de Uruçuí/Uruçuí-PI Professor da UESPI, curso de Agronomia, Engenharia Agricola. Warlington Aquilis Araujo Coelho, Universidade Estadual do Piaui - UESPI, Campus de Uruçuí/Uruçuí-PI Graduando em Agronomia - UESPI References (I) Andrade, A.C., Fonseca, D.M., Lopes, R.S., Nascimento Júnior, D., Cecon, P.R., Queiroz, D.S., Pereira, D.H., Reis, S.T., 2005. Análise de crescimento do capim-elefante ‘napier’ adubado e irrigado. Ciência e Agrotecnologia, 29, 415-423.

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