Selection of white oat genotypes for contrasting fungicide management conditions

IF 0.7 4区 农林科学 Q3 AGRICULTURE, MULTIDISCIPLINARY
Júlio Daronco Berlezi, I. Carvalho, J. P. D. Silva, Murilo Vieira Loro, Inaê Carolina Sfalcin, Leonardo Cesar Pradebon, E. D. Port, Rafael Soares Ourique, João Pedro Dalla Roza
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引用次数: 1

Abstract

Abstract The objective of this work was to select white oat (Avena sativa) genotypes for environments with and without fungicide application, as well as to identify relationships between meteorological variables and agronomic traits. Two experiments were carried out: one without and the other with the use of the tebuconazole fungicide. In each experiment, 26 genotypes were evaluated, conducted during ten years in the same experimental area; cultivation years were considered as one environment. The methodologies of genotype and of the genotypes x environments interaction were used to define the ideal genotype. 'URS Corona' is considered an ideal genotype due to its excellent responses in the environment with tebuconazole. The 'Brisasul', 'IPR Aphrodite', and 'URS Taura' genotypes respond better in the environment without the fungicide. However, based on multitraits, the 'URS Taura' and 'IPR Afrodite' genotypes can be positioned in environments with or without the use of tebuconazole. Genotypes with a rust incidence lower than 15% and a height higher than 93 cm in an environment with a relative humidity lower than 70.75% have a higher grain yield regardless of fungicide use. Greater magnitudes of air temperature and solar radiation result in a higher grain yield of white oat, regardless of fungicide use.
白燕麦基因型选择与杀菌剂管理条件对比
摘要本研究的目的是在施用和不施用杀菌剂的环境中选择白燕麦(Avena sativa)基因型,并确定气象变量与农艺性状之间的关系。进行了两项实验:一项不使用戊康唑杀菌剂,另一项使用戊康唑杀菌剂。每项试验评估26个基因型,在同一试验区进行10年;栽培年限作为一个环境来考虑。采用基因型和基因型与环境相互作用的方法确定理想基因型。“URS Corona”被认为是一种理想的基因型,因为它在戊康唑环境中具有良好的反应。‘Brisasul’、‘IPR Aphrodite’和‘URS Taura’基因型在没有杀菌剂的环境下反应更好。然而,基于多性状,“URS Taura”和“IPR Afrodite”基因型可以在使用或不使用戊康唑的环境中定位。在相对湿度低于70.75%的环境下,锈病发生率低于15%、株高高于93 cm的基因型,无论使用哪种杀菌剂,籽粒产量都较高。无论是否使用杀菌剂,较高的气温和太阳辐射都能提高白燕麦的产量。
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来源期刊
Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuaria Brasileira 农林科学-农业综合
CiteScore
1.20
自引率
0.00%
发文量
45
审稿时长
9-18 weeks
期刊介绍: Pesquisa Agropecuária Brasileira – PAB – is issued monthly by Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA, affiliated to Ministry of Agriculture, Livestock and Food Supply. PAB publishes original scientific-technological articles on Plant Physiology, Plant Pathology, Crop Science, Genetics, Soil Science, Food Technology and Animal Science. Its abbreviated title is Pesq. agropec. bras., and it should be used in bibliographies, footnotes, references and bibliographic strips.
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