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Cereal Research Communications
Authors: István Kristó, Kálmán Gyuris, Mária Torma, Margit Hódi-Szél, and István Petróczi

Baniuniene, A. — Zekaite, V.: 2005. Development of winter wheat in relation to sowing date, seed rate and weather conditions. Zemdirbyste-Mokslo-Darbai. 92. 80–92. pp. Zekaite V

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473 476 Horvat, D. — Loncaric, Z. — Vukadinovic, V. — Drezner, G. — Bertic, B. — Dvojković, K. (2006) The influence of mineral fertilisation on winter wheat yield and quality

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6 7 Matuz J. — Markovics E. — Ács E. — Véha A.: 1999. Study of relationships between the technological quality characters of the flour of winter wheat varieties

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The grouping of locations from local-scale multi-environmental trials (METs) into megaenvironments has been criticized. Some European countries, e.g. the Czech Republic, Poland and Germany, have been characterized as possessing homogeneous environmental conditions. For aligned environmental conditions, it has been assumed that cultivar rankings will be similar and consequently cannot be used to designate mega-environments. An example of METs at the local scale is the Polish Post Registration Variety Testing System. The objective of this study was to determine groups of test sites within 16 Polish regions which are characterized by similar yield ranking of 50 winter wheat cultivars over three growing seasons (2011–2013). The compatibility of these cultivar yield rankings across regions was evaluated using Pearson correlation coefficients. Thereby, the 16 regions were divided into six groups (mega-environments) of locations. Regions within each group have similar cultivar rankings, whereas between groups, we observed different cultivar rankings, indicating crossover interactions. Besides similar cultivar yield responses the regions within megaenvironments were characterized also by similar environmental (soil and/or climate) conditions.

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Cereal Research Communications
Authors: D. Huang, H. Zhang, M. Tar, Y. Zhang, F. Ni, J. Ren, D. Fu, L. Purnhauser, and J. Wu

Stripe or yellow rust (Yr), caused by Puccinia striiformis Westend. (Pst), is one of the most important wheat diseases worldwide. New aggressive Pst races can spread quickly, even between countries and continents. To identify and exploit stripe rust resistance genes, breeders must characterize first the Pst resistance and genotypes of their cultivars. To find new sources of resistances it is important to study how wheat varieties respond to Pst races that predominate in other continents. In this study we evaluated stripe rust resistance in 53 Hungarian winter wheat cultivars in China. Twenty-four cultivars (45.3%) had all stage resistance (ASR) and 1 (1.9%) had adult-plant resistance (APR), based on seedling tests in growth chambers and adult-plant tests in fields. We molecularly genotyped six Yr resistance genes: Yr5, Yr10, Yr15, Yr17, Yr18, and Yr36. Yr18, an APR gene, was present alone in five cultivars, and in ‘GK Kapos’, that also had seedling resistance. The other five Yr genes were absent in all cultivars tested.

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Cereal Research Communications
Authors: Georg Drezner, Kresimir Dvojkovic, Daniela Horvat, Dario Novoselovic, Alojzije Lalic, Darko Babic, and Josip Kovacevic

Trials with seven genotypes of winter wheat were set up as RCB design at four locations in continental part of Croatia in three repetitions during 2004 and 2005 year. Grain yield and indirect quality traits were analyzed. Statistically significant differences for all traits were found among cultivars (G), locations (L) and years (Y), and for all interactions (GxL, GxY, LxY, GxLxY) except for the interaction GxLxY for protein and wet gluten content and for the interaction term GxL for grain yield. In 2004 year higher grain yields were realized as compared to 2005. The same trend has been reached for all analysed quality traits (2004 was better than 2005) except for sedimentation value. The highest grain yields, test weights and wet gluten content were realized at location Osijek. Highest protein content and sedimentation value were found at location Nova Gradiska. The most yielding genotypes with lowest coefficient of variation for grain yield over locations and years were Seva, Demetra and Srpanjka, while the most favorable quality traits with the lowest coefficient of variation were found for Golubica, Zitarka and Panonka.

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különböző termőhelyen termesztett búzafajták lisztminőségi paramétereinek összehasonlítása. (Comparasion of quality parameters of winter wheat species cultivated on different sites.) Növénytermelés, 44.1.11–19. Győri

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Kutasy E.— Csajbók J.— Hunyadi Borbély É.: 2005. Relations between yield and photosynthetic activity of winter wheat varieties. Cereal Research Communications Vol. 33 no. 1 173–176 pp. Hunyadi Borbély

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Bedő, Z., Balla, L., Szunics, L., Láng, L., Kramarikné-Kissimon, J. 1993. A martonvásári 1B/1R transzlokációt hordozó búzafajták tulajdonságai (Characteristics of winter wheat cultivars carrying the 1B/1R

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Cereal Research Communications
Authors: Kresimir Dvojkovic, Georg Drezner, Daniela Horvat, Dario Novoselovic, and Valentina Spanic

Drezner G. — Dvojkovic K. — Horvat D. — Novoselovic D. — Lalic A. — Babic D. — Kovacevic J.: 2006. Grain Yield and Quality of Winter Wheat Genotypes in Different Environments-Cereal Research Communications vol

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