Selection of wheat based on economic returns per unit area

Abstract

This study aimed to investigate a cultivar selection criterion based on income ha -1 in common wheat. Regional yield trials with 20 entries were planted in Diyarbakır, Hazro and Ceylanpınar in southeast Anatolia in the 2004/ 2005 growing season. A randomized complete block design with four replications was employed. Grain samples from each location were subjected to quality analyses, and then presented to randomly selected grain purchasers with the local commodity market for market price estimations.Entries 1, 9, 10, 7 and 6 were the top five ranking entries for grain yield, giving 5,320, 5,290, 5,280, 5,140 and 5,130 kg ha -1 , respectively. From the market price perspective, entries 17, 3, 7, 20 and 8 received the five highest marketing price offers with the values 239.0, 238.1, 237.1, 236.9 and 236.7 US$ tonne -1 , respectively. There was a US$ 10.94 tonne -1 market price difference between entries with the highest and the lowest market price. The only quality analyses showing significant correlations with market price were Zeleny sedimentation value and hectolitre weights (kg hl -1 ). From thev production income [= marketing price (US$ tonne -1 ) · grain yield (kg ha -1 )] point of view, entries 9, 10, 1, 7 and 6 were ranked from 1st to 5th for production income ha -1 with the values 1,241.0, 1,238.0, 1,219.9, 1,214.2 and 1,209.3 US$ ha -1 , respectively. All five high yielding entries were also high-income entries. A rank stability analysis further indicated that entry numbers 6, 7, 8, 4 and 1 stable for high production income ha -1 . A simulation study, based on allocation of additional premiums for high quality indicated that entries 9,1,10, 7, and 6 would be top ranking for high income ha -1 if given an additional premium of as much as twice the standard deviations of market price for each entry (the highest premium limit; 20.24 US$ tonne -1 ). The order for cultivar preference for high production income ha -1 would change and would generate 1,321.94, 1,296.20, 1,281.11, 1,258.06 and 1,243.01 Ó Springer Science+Business Media B.V. 2006 US$ ha -1 , respectively. It was concluded that the relatively quality conscious S¸anlıurfa commodity market does not offer adequate premiums for the high quality grains. This results in farmer preference for high yielding lower quality cultivars. Even though quality cannot be neglected, and cultivar preference could change with additional premiums, breeders must give more attention to high production income ha -1 .

Efficacy and Economics of Integrating In-Field and Harvesting Strategies to Manage Fusarium Head Blight of Wheat

“…As discussed by Ozberk et al (29) and Hollingsworth et al (14), wheat cultivars are often selected based on grain YLD rather than quality traits, with producers often in clined to select high-yielding, low-quality cultivars over loweryielding, higher-quality cultivars. We showed that un der the disease levels of this study (IND of 0 to 17%), the integra tion of moderate resistance and a fungicide application was suffi cient to minimize the effect of FHB on grain YLD and quality losses, without the need to change the combine harvester config uration.…”

Conditional QTL Mapping of Sedimentation Volume on Seven Quality Traits in Common Wheat

“…SD can reflect the quantity and quality of bread or durum wheat gluten protein, and the relationships between these variables have been extensively studied (Payne 1987;MacRitchie et al 1990;Silvela et al 1993). In addition, SD is significantly correlated not only with the taste and appearance of Dry White Chinese Noodles but also with cookie diameter and market price (Özberk et al 2006;Ozturk et al 2008). A significant correlation between the sedimentation value and the mixograph score was also observed.…”

Soil Moisture Monitoring of the Plant Root Zone by Using Phenology as Context in Remote Sensing

“…Wheat is the most widely grown cereal in Turkey. Turkey is home to 23 species of wild wheat and more than 400 cultivated wheat varieties [49]. Regardless of the irregular topography and various climates, it is possible to produce winter wheat in almost every region.…”