Interaction between cultivar and crop management effects on winter wheat diseases, lodging, and yield

Loyce, Chantal; Meynard, Jean Marc; Bouchard, Christine; Rolland, Bernard; Lonnet, Philippe; Bataillon, Paul; Bernicot, Marie-Hélène; Bonnefoy, Michel; Charrier, Xavier; Debote, Bernard; Demarquet, Thierry; Duperrier, B.; Félix, Irène; Heddadj, Djilali; Leblanc, Olivier; Leleu, Michel; Mangin, P; Méausoone, M.; Doussinault, Gérard

doi:10.1016/j.cropro.2008.02.001

Cited by 67 publications

(53 citation statements)

References 32 publications

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“…It was observed a great effect of years and growth sites on the yield performance of the wheat crop and responsiveness to the application of fungicide, corroborating with studies conducted by Wegulo et al (2011), Barkley et al (2014) and Thompson et al (2014). Brancourt-Hulmel et al (2005), Loyce et al (2008Loyce et al ( , 2012 and Thompson et al (2014) also observed the need for local-specific selection and evaluation, to maximize the use of the genotype x environment interaction. In order to maximize and optimize the selection, it is important that the experimental network includes discriminatory sites (that potentiate the differentiation of genotypes) and representative of the region of cultivation.…”

Section: Statisticsupporting

confidence: 62%

“…The variation in efficacy and responsiveness to fungicide application is mainly influenced by the relative air humidity, temperature, pathogen aggressiveness, resistance of the cultivar and the level of technological management adopted (Barros et al, 2006;Jørgensen & Olsen 2007;Loyce et al 2008;Wegulo et al, 2011;Thompson et al, 2014). Depending on the conditions of the environment, management and cultivars, losses ranging from 5.5 to 79% due to the occurrence of leaf fungal diseases were recorded (Ransom & Mcmullen 2008;Wegulo et al 2009;MacLeod et al, 2010;Tonin et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Environment-specific selection to identify high yielding wheat genotypes and response to fungicide application

Benin

Storck

Marchioro³

et al. 2017

Rev. Ceres

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RESUMOSubmetido em 06/11/15 e aprovado em 21/02/17. 1 Universidade Tecnológica Federal do Paraná, Pato Branco, Paraná, Brazil. giovani.bn@gmail.com; lindolfostorck@gmail.com; elesandro.bornhofen@gmail.com; leowoyann@gmail.com; diegotrevizan@alunos.utfpr.edu.br 2 Cooperativa Central de Pesquisa Agrícola (COODETEC), Cascavel, Paraná, Brazil. volmir@coodetec.com.br *Corresponding author: benin@utfpr.edu.br Environment-specific selection to identify high yielding wheat genotypes and response to fungicide application Selection of disease resistant genotypes is the main goal of wheat (Triticum aestivum L.) breeding programs. However, because of the lack of genotypes resistant to all diseases and the strong influence of the environment on the level of resistance of the genotypes, the use of fungicides is necessary in the cultivation of wheat. The objective of this study was to compare the gain in yield and the selection efficiency of wheat genotypes due to the fungicide application in trials carried out in different sites and years. This study used grain yield data from 816 wheat genotypes evaluated in 248 advanced trials at eight sites during the years from 2004 to 2012. The gain resulting from fungicide application for a given genotype was estimated by the difference between yield of plots on which fungicide was applied and control treatment. The greatest gains with fungicide application were observed in sites with lower average temperatures and higher rainfall indices, such as Campo Mourão, Castro, Não-Me-Toque and Guarapuava. On the other hand, the lowest gains with fungicide application occurred in Dourados and Palotina, environments where crops in general suffer water stress and present higher average temperatures. The year effect resulted in yield increases due to fungicide application ranging from 16.9 to 60.7%. The selection and evaluation of the response to the application of fungicide in wheat should be environment-specific to maximize the use of genotype x environment interaction. Seleção ambiente-específica de genótipos para rendimento de grãos e responsividade à aplicação de fungicida em trigo A seleção de genótipos resistentes a doenças é uma meta prioritária dos programas de melhoramento genético de trigo (Triticum aestivum L.). Mas, devido a não existirem genótipos resistentes à todas as doenças e a forte influência do ambiente no nível de resistência dos genótipos, o uso de fungicidas é necessário no cultivo do trigo. O objetivo deste estudo foi comparar o ganho em produtividade e a eficiência da seleção de genótipos de trigo devido à aplicação de fungicida em ensaios realizados em diferentes locais e anos de cultivo. Foram utilizados dados de produtividade de grãos de 816 genótipos de trigo avaliados em 248 ensaios de competição, em oito locais, nas safras agrícolas de 2004 a 2012. O ganho com a aplicação de fungicida para um dado genótipo foi estimado pela diferença entre a produtividade das parcelas que receberam fungicida e o tratamento controle. Os maiores ganhos com a aplicação de fung...

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Section: Statisticsupporting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Environment-specific selection to identify high yielding wheat genotypes and response to fungicide application

Benin

Storck

Marchioro³

et al. 2017

Rev. Ceres

View full text Add to dashboard Cite

show abstract

“…Moreover, as Mercer and Ruddock [46] observed, the application of chemical growth regulators could improve root capacities, while a wide range of fungicides led to a retention of green leaf area of wheat plants. Overall, as stated by Loyce et al [47], cultivar adapted plant protection is very important as there is a significant interaction effect between the cultivar and the application of fungicides.…”

Section: Plant Protectionmentioning

confidence: 94%

Yield Stability in Winter Wheat Production: A Survey on German Farmers’ and Advisors’ Views

Macholdt

Honermeier

2017

Agronomy

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Most of the available research studies have focused on the production of high grain yields of wheat and have neglected yield stability. However, yield stability is a relevant factor in agronomic practice and, therefore, is the focus of this comprehensive survey. The aim was to first describe the importance of yield stability as well as currently used practical management strategies that ensure yield stability in wheat production and secondly, to obtain potential research areas supporting yield stability in the complex system of agronomy. The target groups were German farmers with experience in wheat production and advisors with expertise in the field of wheat cultivation or research. A sample size of 615 completed questionnaires formed the data basis of this study. The study itself provides evidence that the yield stability of winter wheat is even more important than the amount of yield for a large proportion of farmers (48%) and advisors (47%). Furthermore, in the view of the majority of the surveyed farmers and advisors, yield stability is gaining importance in climate change. Data analysis showed that site adapted cultivar choice, favorable crop rotations and integrated plant protection are ranked as three of the most important agronomic management practices to achieve high yield stability of wheat. Soil tillage and fertilization occupied a middle position, whereas sowing date and sowing density were estimated with lower importance. However, yield stability is affected by many environmental, genetic and agronomic factors, which subsequently makes it a complex matter. Hence, yield stability in farming practice must be analyzed and improved in a systems approach.

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“…Fertilization is calculated using the N balance at the end of winter and is based on N requirements, mineralized N, final soil residual nitrogen objective at harvest of 40 kgN.ha −1 [14]. The difference in yield targets between conventional and low-input systems is similar to that used in an experimental study conducted by Loyce et al [19].…”

Section: Summer Fallow and Input Use Managementmentioning

confidence: 99%

Economic Analysis of Summer Fallow Management to Reduce Take-All Disease and N Leaching in a Wheat Crop Rotation

Cara

Jacquet

Reynaud³

et al. 2010

Environ Model Assess

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This paper addresses the question of summer cover-crop adoption by farmers in presence of a risk of yield loss due to take-all disease and climate variability. To analyze the public incentives needed to encourage farmers to adopt summer cover crops as a means of reducing N leaching, we combine outputs from an economic, an epidemiological and an agronomic model. The economic model is a simple model of choice under risk. The farmer is assumed to choose among a range of summer fallow managements and input uses on the basis of the expected utility criterion (HARA assumption) in presence of both climate and take-all Financial support from the French National Research Agency (ANR) within the program Agriculture and Sustainable Development 'IMPACTS' (ADD) is gratefully acknowledged.

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Interaction between cultivar and crop management effects on winter wheat diseases, lodging, and yield

Cited by 67 publications

References 32 publications

Environment-specific selection to identify high yielding wheat genotypes and response to fungicide application

Environment-specific selection to identify high yielding wheat genotypes and response to fungicide application

Yield Stability in Winter Wheat Production: A Survey on German Farmers’ and Advisors’ Views

Economic Analysis of Summer Fallow Management to Reduce Take-All Disease and N Leaching in a Wheat Crop Rotation

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