Turkish Journal of Field Crops

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INVESTIGATIONS ON THE RELATIONSHIPS BETWEEN SOME QUALITY CHARACTERISTICS IN A WINTER WHEAT POPULATION

Pakize Ozlem KURT POLAT , Koksal YAGDI

Abstract

This research was conducted to estimate the relationships between various quality traits of winter wheat. The field trial was carried out in the Research and Application Center of Faculty of Agriculture, Uludag University (Bursa / Turkey) during the 2012-2013-2014 seasons. Twenty-six different winter wheat genotypes were used as genetic material. Certain quality traits such as protein content, zeleny sedimentation volume, delayed sedimentation volume, falling number, gluten, gluten index and hectoliter were measured. The results for the individual years and the combined data for all three years revealed that there were positive and significant correlation between protein content with delayed sedimentation and gluten index indicates. The negative and significant correlation between gluten and gluten index was determined in the study and gluten index decreased while gluten content increased. A positive and significant correlation was found between hectoliter with delayed sedimentation and falling number. Thus, the relationships between these traits are considered as criterion that can be used in selection for quality. (SBx15-4)-5, (Gx22-1) and (Gx22-1)-6 and Bezostaja, Flamura genotypes were found to be good for breadmaking flour quality according to their superiority with respect to at least three and more quality criteria for all three years.

Keyword: Correlation, flour quality, Triticum aestivum L, winter wheat ,
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Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Erdal GONULAL, Suleyman SOYLU, Mehmet SAHIN

Abstract

A field experiment was conducted in the Wielkopolska region at the Gorzyń Research Station, Poland (52.34°N, 15.54°E) in Central Europe. The study was conducted over a 3-year period (2017, 2018, 2019) as a two-factorial design with four replications in the RCBD. The aim of the research was to determine the effect of the cultivar (‘Bolero’, ‘Tytan’) and the inoculation (Nitragina–seeds inoculation, Nitroflora I–seeds inoculation, Nitroflora II–soil inoculation, HiStick® Lupin–seeds inoculation) on plant development, seeds chemical composition and yielding of narrow-leaved lupin. The weather conditions and experimental factors significantly influenced on productivity of narrow-leaved lupin ‘Tytan’. Drought during the growing season reduced seeds and protein yields. After inoculation of HiStck the seeds yield was significantly greater by 12.4% (p < 0.01) and the protein yield after application of Nitroflora I or HiStick by 13.9% (p < 0.01) and 19.2% (p < 0.01), respectively. Correlation coefficients showed strong relations between number of pods and seeds per plant in both cultivars regardless of the inoculation variant, however the strongest relations in both cultivar were proved on HiStick treatment.
Keyword: Biological nitrogen fixation, chemical composition, legumes, protein efficiency, yielding
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