Giles João Antonio D, Oliosi Gleison, Rodrigues Weverton P, Braun Heder, Ribeiro-Barros Ana I, Partelli Fábio L
Departmento de Ciências Agrárias e Biológicas, Centro Universitário Norte do Espírito Santo, Universidade Federal do Espírito Santo/UFES, Rod. BR 101, Km 60, Litorâneo, 29932-540 São Mateus, ES, Brazil.
Centro de Ciências e Tecnologias Agropecuárias, Universidade Estadual Norte Fluminense-Darcy Ribeiro, Av. Alberto Lamego, 2000, 28013-602 Campos dos Goytacazes, RJ, Brazil.
An Acad Bras Cienc. 2018 Oct-Dec;90(4):3639-3648. doi: 10.1590/0001-3765201820180099. Epub 2018 Sep 3.
The morphoagronomic characterization of 12 genotypes of M. esculenta was performed during the 2013/2014 and 2014/2015 crop years. The 12 genotypes were planted in a randomized block design, with four replicates per genotype. Number of tuberous roots per plant, weight of tuberous roots, root yield, total plant weight, harvest index, plant height, height of first branch, number of shoots, stem diameter, number of buds, leaf dry weight and petiole length were evaluated. Genotypes "Camuquem" and "Goiás" were the most productive, and "Amarela" and "Gema de Ovo" were the most divergent. Seventy percent of genetic diversity was due to petiole length (22.86%), root yield (19.20%), weight of tuberous roots (14.89%) and number of buds (13.72%). Overall, the present results indicate a broad genetic basis for the evaluated genotypes, so that such genetic variation benefits the plant breeding for future scenarios Further studies of the evaluated genotypes should be performed under environmental limitations, using biochemical and molecular tools to identify markers for genetic improvement.
在2013/2014和2014/2015作物年度对12个甘薯基因型进行了形态农艺学特征分析。这12个基因型采用随机区组设计种植，每个基因型有4次重复。评估了单株块根数、块根重量、块根产量、植株总重量、收获指数、株高、第一分枝高度、茎数、茎直径、芽数、叶干重和叶柄长度。“卡穆克姆”和“戈亚斯”基因型产量最高，“阿马雷拉”和“卵黄”基因型差异最大。70%的遗传多样性归因于叶柄长度（22.86%）、块根产量（19.20%）、块根重量（14.89%）和芽数（13.72%）。总体而言，目前的结果表明所评估的基因型具有广泛的遗传基础，因此这种遗传变异有利于未来情景下的植物育种。应在环境限制条件下，利用生化和分子工具对所评估的基因型进行进一步研究，以鉴定遗传改良的标记。
