Hoad, SP

Moran, D

Spoor, W

economic and market requirements and respond to commitments on climate change mitigation, soil and water quality improvement and biodiversity conservation. EU Directives that require testing for value for cultivation and use (VCU) as part of National Listing (NL) are primarily led by market drivers.New varieties are normally defined according to market values such as yield and grain quality, but they could also be rated in terms of their environmental or social value such as the reduction of fungicide, herbicide, fertiliser or energy use. Thus, the testing of new varieties could demonstrate financial benefits as well as contributions to wider climatic, social and agri-environmental drivers.<br/

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Scotland's Rural CollegeAnalysis of Cereal Trials to Evaluate Market and Non-Market Benefits of New Varietiesand Their Traits - PosterHoad, SP; Moran, D; Spoor, WPrint publication: 01/10/2007Document VersionPublisher's PDF, also known as Version of recordLink to publicationCitation for pulished version (APA):Hoad, SP., Moran, D., & Spoor, W. (2007). Analysis of Cereal Trials to Evaluate Market and Non-MarketBenefits of New Varieties and Their Traits - Poster. Poster session presented at Agricultural Field Trials – Todayand Tomorrow, Stuttgart-Hohenheim, Germany.General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright ownersand it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.            • Users may download and print one copy of any publication from the public portal for the purpose of private study or research.            • You may not further distribute the material or use it for any profit-making activity or commercial gain            • You may freely distribute the URL identifying the publication in the public portal ?Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediatelyand investigate your claim.Download date: 19. Oct. 2019Analysis of Cereal Trials to Evaluate Market and Non-Market Benefits of New Varieties and Their TraitsSteve Hoad, Dominic Moran and Bill SpoorSAC West Mains RoadEdinburghEH9 3JG, Scotland   Email: stevehoad@sac.co.ukIntroductionTrial Design & AnalysisSummaryAcknowledgementsSAC gratefully acknowledge to support of the Scottish Government and Defra in thedevelopment of this work.In future, evaluation of cereal varieties for both market andenvironmental values would be a significant step towards developingnew sustainability criteria; including mitigation or adaptation to climatechange and reducing pesticide inputs.For any given research priority or policy objective; for examplemitigation of climate change, protection of biodiversity or reduction ofpollution and waste, we can determine whether new varieties oralternative approaches are the best means of delivering the greatestamount of social, environmental or economic benefit.Evaluation of varieties and traitsA key step is to assign value to varieties and their traits. Hedonicvaluation may be useful in estimating the wider environmental benefitsof plant traits. In its simplest form, one such procedure is described by:Here, Vij is a measure of the economic value of a variety i in location j.T1ij, T2ij, ..., Tnij are indexes of traits 1, 2, ..., n of the variety in locationj. Zij is a further measure of economic or environmental factors orbenefits associated with variety i.The present value costs of adopting new varieties can be assessed bycomparing values of the variety with alternative approaches, and theirexpected future benefits, in delivering objectives such as reducingfertiliser or pesticide inputs.An incremental cost-effectiveness ratio can be considered as:Here, PVg is the present value of a new variety, PVc is the presentvalue of an alternative approach, Qg is the improvement or benefit withthe new variety and Qc is the improvement or benefit under thealternative approach.This model can be used to introduce different options for costs andbenefits of new varieties and alternatives. A time-frame may also beadded to evaluate longer term adoption of a new variety or strategy.cgcgQQPVPV),,....,,( 21 ijnijijijij ZTTTFV Agriculture is increasingly required to deliver goods that go beyondeconomic and market requirements and respond to commitments onclimate change mitigation, soil and water quality improvement andbiodiversity conservation.EU Directives that require testing for value for cultivation and use(VCU) as part of National Listing (NL) are primarily led by marketdrivers.New varieties are normally defined according to market values such asyield and grain quality, but they could also be rated in terms of theirenvironmental or social value such as the reduction of fungicide,herbicide, fertiliser or energy use.Thus, the testing of new varieties could demonstrate financial benefitsas well as contributions to wider climatic, social and agri-environmentaldrivers.The photographs show a selection of wheat varieties currently grown inthe UK. Variety approval from Recommended List (RL) trials is largelybased on yield (fungicide treated) and grain quality.Variety selection and may also consider wider criteria such as yieldstability or potential benefits from improved disease resistance ratings.However, for both market and non-market drivers to be used within VCUtesting, as well as in NL and national RL systems, trials will require:(1) Designs to differentiate genotype responses across trials series sothat the 'environmental' component of g x e interactions can be sub-divided into management and environmental components.(2) Methods to assess market and non-market value: including cost-benefit analysis of aggregate returns to the costs of selecting newvarieties and their subsequent adoption.Analyses should include comparison of the relative costs and benefits ofnew genotypes and their trait combinations with alternative methodssuch as other research avenues, or governmental policy levers indelivering specified objective outcomes.Plant traits of general value may include yield without fungicide,improved nitrogen uptake efficiency and widening of sowing dates tooffset weed, pest and disease build-up.Comparing high quality ‘Zebedee’ with high yield stability in ‘Istabraq’Comparing high yielding ‘Oakley’ against a low-input option in ‘Timber’

Analysis of Cereal Trials to Evaluate Market and Non-Market Benefits of New Varieties and Their Traits - Poster

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Analysis of Cereal Trials to Evaluate Market and Non-Market Benefits of New Varieties and Their Traits - Poster

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