Avaliação de genótipos de batata-doce (Ipomoea batatas L. (Lam)) submetidos a diferentes tipos de fertilidade do solo no município de Rio Largo - Alagoas

Abstract

This study aimed to evaluate genotypes of sweet potato under different types of soil fertility in two experiments that were conducted in the area of the Center of Agrarian Sciences, Federal University of Alagoas (ECSC / UFAL). The first conducted between June 2009 and October 2009 and the second between August 2010 and January 2011. Was used for both experiments, the randomized block design in 3 x 7 factorial with three replications. The experimental plots consisted of three plots of 6.0 m long with 0.30 m in height each, consisting of 15 plants per swath in the spacing of 0.80 mx 0.40 m, considering how useful area row core. These sweet potato genotypes were submitted to the following types of fertilization: 1 - No Application No Lime and Fertilizer Mineral 2 - With Application of Lime and Fertilizer Mineral No 3 - With Application of Mineral Fertilizer and Limestone. This work allowed the following conclusions: a) Clone 06 and witnesses Coquinho White and Sergipe had the highest amounts of commercial roots and yield of commercial roots per hectare in the experiment of 2010. b) There were influences of different types of soil fertility in genotypes of sweet potato for the variables RRNC, RTR and PPA in the experiment of 2010. c) Clone 06 witnesses and the Queen of Penedo and Sergipe had the highest amounts of commercial roots and yield of commercial roots per hectare in the experiment of 2011. d) There was influence of different types of soil fertility in genotypes of sweet potato for the variables DRC, RRC, RTR and PPA in the experiment of 2011. e) The type of soil fertility with lime and mineral fertilizers yielded better results in most of the variables in both experiments. f) Among the clones in both experiments, clone 06 showed the best performance.