Andrés Chacón-Ortiz, L. C. Maia, A. Oliveira, Eduardo Venske, C. Pegoraro
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引用次数: 0
摘要
橄榄树(Olea europaea L.)是一种在历史和经济上具有重要意义的物种,其表型变异性大,分布在世界各地。对该物种的大量栽培品种的特性进行了几项研究。然而,有必要揭示这些表型特征是如何遗传的,以及它们如何在环境条件变化时发生变化。因此,本研究的目的是估计6个商品品种果实性状的遗传力系数,并在巴西南巴西大州的条件下进行分析。本研究是在一年的时间里,在南巴西大州的环境条件下,对栽培品种Arbequina、Arbosana、Frantoio、Koroneiki、Manzanilla de Sevilla和Picual的果实和油脂性状进行分析。在品种间和品种内比较中估计了表型可塑性和广义遗传力。从变异和遗传力分析来看,Koroneiki和Picual等品种的性状主要受遗传控制,而Arbequina则主要受基因型-环境互作的影响。从这项工作中获得的信息可以帮助指导选择最适合巴西南部地区当地环境的品种。
Characterization and heritability of fruit from olive cultivars in the south of Brazil
: The olive tree ( Olea europaea L.) is a species of great importance in history and economic, with large phenotypic variability, represented through a wide range of cultivars spread throughout the world. There are several studies on the characterization of a large number of cultivars of the species. However, there is a need to uncover how these phenotypic traits are heritable, and how they can change when environmental conditions vary. For this reason, the objective here was to estimate the heritability coefficients for fruit characters in six commercial cultivars, analyzed under conditions in the state of Rio Grande do Sul, Brazil. The study was carried out in a single year, based on the analysis of fruit and oil traits on the cultivars Arbequina, Arbosana, Frantoio, Koroneiki, Manzanilla de Sevilla, and Picual, under environmental conditions in the state of Rio Grande do Sul. Phenotypic plasticity and broad-sense heritability were estimated in both inter and intra-cultivar comparisons. From the analyses of variance and heritability, it was observed that some cultivars such as Koroneiki or Picual had their characters mainly under genetic control, while Arbequina was more influenced by genotype-environment interaction. The information derived from this work can help guide the selection of cultivars that are best adapted under the local environments of the southern region of Brazil.
期刊介绍:
Bragantia é uma revista de ciências agronômicas editada pelo Instituto Agronômico da Agência Paulista de Tecnologia dos Agronegócios, da Secretaria de Agricultura e Abastecimento do Estado de São Paulo, com o objetivo de publicar trabalhos científicos originais que contribuam para o desenvolvimento das ciências agronômicas.
A revista é publicada desde 1941, tornando-se semestral em 1984, quadrimestral em 2001 e trimestral em 2005.
É filiada à Associação Brasileira de Editores Científicos (ABEC).