Desempenho de cultivares de alface do grupo solta crespa para cultivo no verão em Jataí-GO

Abstract

The objective of this study was to evaluate the performance of 14 crisp lettuce cultivars (Alcione, Bruna, Coral, Cristina, Isabela, Milena, Solaris, SVR- 2005,TE-70, Thaís, Valentina, Vanda , Veneranda and Vera) grown under summer condition, in Jataí - Goiás - Brazil. The experimental design was in randomized complete blocks with four replicates. The characteristics height and diameter plant, number of leaves, length and diameter stem, total and commercial fresh mass and dry mass content were evaluated. There was not significant effect of the cultivars on height and diameter plant and dry matter content. The cultivar Valentina with 37 leaves plant-1 stood out in relation to the other cultivars. For the length of the stem, the cultivars Alcione, Bruna, Isabela, Milena, SVR-2005, Thais and Vera presented suitable sizes for commercialization. The cultivars Isabela, Milena, Valentina and Vanda presented higher value for stem diameter. The cultivars Alcione, Coral, Isabela, SVR-2005, TE-70, Thaís, Valentina and Vanda showed higher total fresh matter than the other cultivars. The cultivars Alcione, Valentina and Vanda, with yield of commercial fresh matter ranging from 290.3 to 324.8 g plant-1 were more productive than the other cultivars. For the summer crop, All cultivars evaluated presented a commercial standard for the "in natura" market, however, Alcione (324.8 g planta-1 ), Valentina (302.3 g planta-1 ) and Vanda (290.3 g planta-1 ) presented higher commercial fresh matter.