SUNFLO, a model to simulate genotype-specific performance of the sunflower crop in contrasting environments

Casadebaig, Pierre; Guilioni, Lydie; Lecœur, Jérémie; Christophe, Angélique; Champolivier, Luc; Debaeke, Philippe

doi:10.1016/j.agrformet.2010.09.012

Cited by 83 publications

(87 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…O que também está relacionado a melhoria no rendimento e a avaliação constante de novas cultivares obtidas através da identificação dos materiais superiores capazes de expressar alto rendimento e qualidade aceitável nas diferentes regiões, principalmente pela existência da interação genótipos x ambientes, a fim de determinar o comportamento agronômico dos genótipos e sua adaptação às distintas condições locais (PORTO et al, 2007(PORTO et al, , 2008CASADEBAIG et al, 2011). Para Ribeiro et al (2011, estações experimentais, sob condições homogêneas de solo, clima e manejo, têm servido de base para a recomendação de cultivares e o zoneamento agrícola da cultura, fornecendo também informações sobre o potencial de rendimento nas regiões.…”

Section: Introductionunclassified

Desempenho agronômico de genótipos de girassol no norte de Minas Gerais.

Nobre¹,

Resende²,

Brandão³

et al. 2012

AGRO@MBIENTE

View full text Add to dashboard Cite

Resumo -O girassol (Helianthus annuus L.) encontra-se entre as quatro culturas de maior produção de óleo comestível no mundo, e destaca-se pela sua adaptação a diferentes condições edafoclimáticas. Objetivou-se com este estudo avaliar o desempenho agronômico de dez genótipos de girassol no norte de Minas Gerais. O estudo foi conduzido nas Fazendas Experimentais da Empresa de Pesquisa Agropecuária de Minas Gerais (Epamig), nos municípios de Jaíba, distrito de Mocambinho e Nova Porteirinha. Fez-se a avaliação do desempenho agronômico destes genótipos analisando as seguintes características: floração inicial, altura das plantas, diâmetro da haste, número de folhas, circunferência do capítulo, estande final e rendimento de grãos. Os dados coletados foram submetidos à análise de variância e ao teste de Scott-Knott a 5% de probabilidade. Houve variação em todos os parâmetros avaliados no comportamento agronômico dos genótipos, os quais apresentaram bom desempenho quando cultivados em Mocambinho e Nova Porteirinha, no norte de Minas Gerais. Os genótipos avaliados apresentam ciclo precoce, exceto o SYN 039A, com ciclo médio. Com a redução do ciclo da cultura, observa-se também redução na maioria das variáveis avaliadas.Palavras-chave -Helianthus annuus L. Oleaginosa. Produção. Semiárido Abstract -The sunflower (Helianthus annuus L.) is one of the four cultures of the largest production of edible oil worldwide, and stands out for its adaptation to different edafoclimatic conditions. The objective of this study was to evaluate the agronomic performance of ten cultivars of sunflower in northern Minas Gerais. The study was conducted at the Experimental Farms of the Agricultural Research Company of Minas (Epamig) in the municipalities of Jaíba, District of Mocambinho and Nova Porteirinha. The agronomic perfomance of these genotypes was evaluated by reviewing these characteristics: initial flowering, plant height, stem diameter, leaf number, circumference of the chapter, final stand, and yield. The data collected were subjected to variance analysis and the Scott-Knott test at 5% probability. There was variation in all parameters evaluated in agronomic behavior of genotypes, which showed good performance when grown in Mocambinho and Nova Porteirinha, in the north of Minas Gerais. All genotypes evaluated presented early cycle, with the exception of SYN 039A, which demonstrated a medium cycle. With the reduction of the crop cycle, there is also a reduction in the majority of variables.

show abstract

Section: Introductionunclassified

Desempenho agronômico de genótipos de girassol no norte de Minas Gerais.

Nobre¹,

Resende²,

Brandão³

et al. 2012

AGRO@MBIENTE

View full text Add to dashboard Cite

show abstract

“…Crop models currently used for simulating sunflower yield in response to various environments are either: (i) generic (a single mode for multiple species): STICS (Brisson et al, 2003), CropSyst (Stöckle et al, 2003;Todorovic et al, 2009;Moriondo et al, 2011), EPIC/EPIC-Phase (Kiniry et al, 1992;Cabelguenne et al, 1999), AquaCrop (Raes et al, 2009;Todorovic et al, 2009), AqYield (Constantin et al, 2015), WOFOST (Todorovic et al, 2009) or (ii) specific to sunflower crop: Oilcrop-Sun (Villalobos et al, 1996), QSUN (APSIMsunflower) (Chapman et al, 1993;Zeng et al, 2016), SUNFLO (Casadebaig et al, 2011).…”

Section: Crop Models For Exploring the Impacts Of Climate Changementioning

confidence: 99%

Sunflower crop and climate change: vulnerability, adaptation, and mitigation potential from case-studies in Europe

Debaeke¹,

Casadebaig²,

Flénet

et al. 2017

OCL

Self Cite

113

View full text Add to dashboard Cite

-Climate change is characterized by higher temperatures, elevated atmospheric CO 2 concentrations, extreme climatic hazards, and less water available for agriculture. Sunflower, a springsown crop often cultivated in southern and eastern regions of Europe, could be more vulnerable to the direct effect of heat stress at anthesis and drought during its growing cycle, both factors resulting in severe yield loss, oil content decrease, and fatty acid alterations. Adaptations through breeding (earliness, stress tolerance), crop management (planting dates), and shifting of growing areas could be developed, assessed and combined to partly cope with these negative impacts. New cultivation opportunities could be expected in northern parts of Europe where sunflower is not grown presently and where it could usefully contribute to diversify cereal-based cropping systems. In addition, sunflower crop could participate to the mitigation solution as a low greenhouse gas emitter compared to cereals and oilseed rape. Sunflower crop models should be revised to account for these emerging environmental factors in order to reduce the uncertainties in yield and oil predictions. The future of sunflower in Europe is probably related to its potential adaptation to climate change but also to its competitiveness and attractiveness for food and energy.Keywords: CO 2 / temperature / crop model / biotic stress / water deficit Résumé -Culture du tournesol et changement climatique : vulnérabilité, adaptation et potentiel d'atténuation via des études de cas en Europe. Le changement climatique se caractérise par des températures élevées, de plus fortes concentrations atmosphériques en CO 2 , des risques climatiques extrêmes et moins d'eau disponible pour l'agriculture. Le tournesol, culture semée au printemps dans le sud et l'est de l'Europe, pourrait être plus exposé à l'avenir aux fortes températures et à un déficit hydrique marqué dès la floraison, avec pour conséquences des pertes de rendement, une diminution de la teneur en huile et une altération de la composition en acides gras. Des adaptations sont possibles à court et moyen terme par la sélection (précocité, tolérance aux stress), la conduite de culture (date de semis) et le déplacement des zones de production, permettant de faire face en partie aux impacts négatifs attendus. Ainsi le tournesol pourrait être cultivé plus au nord participant utilement à la nécessaire diversification des bassins céréaliers. En outre, la culture de tournesol étant faiblement émettrice de gaz à effet de serre par rapport aux céréales ou au colza pourrait contribuer davantage à la solution climatique apportée par l'agriculture. Les modèles de culture devraient être revus pour mieux tenir compte de ces facteurs environnementaux émergents si l'on veut réduire les incertitudes dans les prédictions de rendement et de teneur en huile. L'avenir du tournesol en Europe est probablement lié à son potentiel d'adaptation au changement climatique, mais dépendra aussi de sa compétitivité et de son attractivité en t...

show abstract

“…In order to represent in an integrated way the response of a sunflower variety exposed to the entire pathogenic fungi complex, two complementary modeling avenues were explored: -a mechanistic and dynamic approach, based on the coupling of epidemiological models with the processbased SUNFLO crop model developed by Casadebaig et al (2011). This way requires detailed knowledge on the lifes cycles of the pathogens and their interactions with their host (earliness, plant architecture, leaf area development and senescence dynamics, genetic resistance,...) and their environment (climate, soil, cultural practices).…”

Section: Modeling the Effect Of Crop Management On Phomopsis Stem Canmentioning

confidence: 99%

Sunflower crop: environmental-friendly and agroecological

Debaeke¹,

Bedoussac

Bonnet³

et al. 2017

OCL

Self Cite

View full text Add to dashboard Cite

-Sunflower (Helianthus annuus L.) crop is often labelled as environmental-friendly for many objective reasons: limited amounts of N fertiliser, no irrigation, and limited use of pesticides. In addition, sunflower has a potential for providing multiple ecosystem services in diverse cropping systems (e.g. pollinators feeding). However agroecological innovations have been less developed or disseminated than for cereals or oilseed rape. Based on results from the sunflower research consortium in Toulouse (Mestries and Debaeke. 2016. Journées d'échanges Tournesol, 28 et 29 juin 2016, Toulouse (France)), we illustrate some innovating and promising approaches for more agroecological practices in sunflower cropping. Our results suggested that: integrated crop management could be proposed to limit the use of pesticides and mitigate crop damages; cover crops could be used as biofumigants to control soilborne diseases in sunflower; intercropping sunflower with soybean could be a valuable option for maximizing resource-use efficiency in low-input environments; sunflower yield could be maintained at good level in very low input cropping systems. Previous examples point out how agroecological principles could be applied to sunflower crop to improve its production in low-input conditions, and enhance the ecosystem services deliverable by this oilseed crop.Keywords: cultural control / intercropping / ecosystem services / cropping systems / low-input Résumé -La culture de tournesol : respectueuse de l'environnement et agroécologique. La culture de tournesol (Helianthus annuus L.) est souvent qualifiée de respectueuse de l'environnement en raison de sa faible dépendance aux apports d'engrais, à l'eau d'irrigation et aux applications de pesticides en végétation. Par ailleurs, le tournesol contribue à de nombreux services écosystémiques au premier rang desquels l'alimentation des pollinisateurs. Cependant, très peu d'innovations agroécologiques ont été mises en avant sur cette culture contrairement à ce qui a été développé en céréales ou en colza. En nous basant sur les travaux récents du consortium de recherche sur le tournesol basé à Toulouse (Mestries et Debaeke. 2016. Journées d'échanges Tournesol, 28 et 29 juin 2016, Toulouse (France)), nous illustrerons plusieurs approches innovantes et prometteuses pour augmenter la performance agroécologique de la culture de tournesol. Ainsi nos résultats montrent que : des méthodes de protection intégrée peuvent être proposées pour limiter l'application de pesticides et atténuer les pertes de rendement ; des cultures intermédiaires (brassicacées) pourraient être utilisées pour la biofumigation des sols et le contrôle de maladies telluriques en tournesol ; l'association culturale avec le soja pourrait constituer une option intéressante pour maximiser l'utilisation des ressources en bas intrants ; le rendement du tournesol peut être maintenu à un bon niveau dans des systèmes à très bas niveaux d'intrants. Les exemples précédents illustrent comment les principes de l'agroécologie peuv...

show abstract

SUNFLO, a model to simulate genotype-specific performance of the sunflower crop in contrasting environments

Cited by 83 publications

References 61 publications

Desempenho agronômico de genótipos de girassol no norte de Minas Gerais.

Desempenho agronômico de genótipos de girassol no norte de Minas Gerais.

Sunflower crop and climate change: vulnerability, adaptation, and mitigation potential from case-studies in Europe

Sunflower crop: environmental-friendly and agroecological

Contact Info

Product

Resources

About