White oat agronomic performance and cultivar reactions to leaf rust and leaf spot

Agronomy Science and Biotechnology Pub Date : 2019-07-05 DOI:10.33158/ASB.2019V5I1P24

S. S. Neto, D. Zeffa, K. Arruda, C. Riede

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引用次数: 1

Abstract

The objective of this work was to evaluate the agronomic performance of white oat cultivars available in the Brazilian market, under distinct environments, to identify genotypes resistant to leaf rust and leaf spot. The study evaluated 22 white oat cultivars originated from several Brazilian breedingprograms. Independent experiments were conducted during the winter crop of 2013 in Londrina and Mauá da Serra, Paraná state, being the cultivars tested under two conditions: with and without the application of fungicides. The incidence of leaf rust, leaf spot, grain yield and hectoliter weight were evaluated. The following cultivars showed genetic resistance to leaf rust: URS Charrua, URS Corona, and URS Guará. Cultivar IPR Afrodite stood out for its high yield and hectoliter weight, with values of 4950 kg.ha-1 and 49.6 kg.hL-1, respectively, under fungicides application conditions. Cultivar URS Corona remained stable in the two environments, showing less yield reduction and greater resistance to diseases. Cultivars UFFA Gauderia, UPFAFPS Farroupilha, URS Fapa Slava, FAEM Carlasul, URS 21, and URS Taura showed average grain yield over 4000 kg.ha-1 with the fungicides use.

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白燕麦农艺性能及品种对叶锈病和叶斑病的反应

本研究的目的是评估巴西市场上不同环境下白燕麦品种的农艺性能，以鉴定抗叶锈病和叶斑病的基因型。该研究评估了来自巴西几个育种项目的22种白燕麦品种。在2013年冬季作物种植期间，在帕拉纳州的Londrina和mau da Serra进行了独立试验，在两种条件下进行了试验:使用和不使用杀菌剂。对叶锈病、叶斑病、籽粒产量和百升重进行了评价。对叶锈病表现出遗传抗性的品种有:紫叶锈病、冠叶锈病和瓜叶锈病。品种IPR Afrodite因其高产和百升重而脱颖而出，其价值为4950公斤。Ha-1和49.6公斤。在杀菌剂施用条件下，hL-1含量分别为。品种URS Corona在两种环境下保持稳定，产量下降较小，抗病能力较强。栽培品种UFFA Gauderia、UPFAFPS Farroupilha、URS Fapa Slava、FAEM Carlasul、URS 21和URS Taura平均产量均在4000公斤以上。Ha-1配合杀菌剂使用。

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Agronomy Science and Biotechnology

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