Genetic diversity in maize under nitrogen restriction conditions

Journal of Bioenergy and Food Science Pub Date : 2018-09-05 DOI:10.18067/JBFS.V5I2.190

W. F. D. Santos, Flávio S. Afférri, J. Peluzio, Layanni Ferreira Sodré, Eliane Aparecida Rotili, F. Cerqueira, T. P. Ferreira

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引用次数: 4

Abstract

Because of the great diversity of corn genotypes and the effects of sowing seasons and nitrogenous fertilizers, in plant development, the identification of promising genotypes in these conditions allows you to provide information to determine the best strategies to be adopted in future breeding programs. Thus, this study aimed to effect of the genetic divergence among corn genotypes in different levels of nitrogen and sowing seasons in the State of Tocantins. In this sense, were conduced six maize populations of competition tests in Palmas-TO, distributed in two sowing seasons (01.21.2014 and 02.19.2014). In each sowing season, the essays were conduced under conditions of high nitrogen (N), mean and low N The experimental design used in each essay was a randomized block with three replications and 12 treatments. Genetic divergence was evaluated by method of Tocher. The characteristics ear weight with straw (Low N), humidity (Average N), number of grains in the row (High N), ear weight with straw (first and second sowing season), they are those that contributed for genetic divergence.

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氮素限制条件下玉米遗传多样性研究

由于玉米基因型的巨大多样性以及播种季节和氮肥的影响，在植物发育过程中，在这些条件下识别有希望的基因型可以为确定未来育种计划中采用的最佳策略提供信息。因此，本研究旨在研究不同氮素水平和播种季节对托坎廷斯州玉米基因型遗传分化的影响。为此，在棕榈-托地区进行了6个玉米群体的竞争试验，分布于2014年1月21日和2014年2月19日两个播种季节。每个播季，试验分别在高氮、中氮和低氮条件下进行，试验设计为随机区组，3个重复，12个处理。用Tocher法评价遗传差异。穗重(低氮)、湿度(平均氮)、行粒数(高氮)、穗重(第一播季和第二播季)是导致遗传分化的性状。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of Bioenergy and Food Science

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