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    EFFECT OF SOIL CONDITIONERS APPLIED TO SEED ON GRAIN YIELD AND YIELD CHARACTERISTICS IN WHEAT
    (Soc Field Crop Sci, 2024) Yuksel, Orhan; Balkan, Alpay; Gocmen, Damla Balaban; Bilgin, Oguz; Baser, Ismet
    This study, researching the effect of seed treatment with liquid soil conditioners on yield properties of bread wheat varieties, was carried out during 2017 and 2018 years in the experimental field of Tekirdag Namik Kemal University Faculty of Agriculture, Department of Field Crops. The experiments were conducted with 3 bread wheat varieties and 4 soil amendments (control + 3 different liquid soil amendments) in 3 repetitions. In the experiment, 4 different treatments including 3 different soil regulators and 1 control (T1: Control; T2: 13-58+glycine betaine; T3: 15% organic matter, 15% humic and fulvic acid+0.03% potassium and T4: 25% organic matter + 65% humic acid + 6% potassium (T4) were made. Seeds treated with a spray and then dried were sown as split plot experimental design. In the study, the variations in the plant height (PH), spike length (SL), number of spikelets per spike (NSS), number of grains per spike (NGS), grain weight per spike (GWS), spike fertility index (SFI), harvest index (HI) and grain yield (GY) parameters were investigated for the bread wheat varieties. According to the research results, all soil conditioners applied to seeds were determined to affect the investigated characters at a statistically significant level. For the PH parameter, T3 treatment caused a significant increase, while for the SFI parameter, T2 treatment caused a significant increase. For the HI parameter, treatments T2 and T3 had the highest effect. Spike characteristics like SL, NSS and NGS increased compared to controls with all soil conditioner treatments, while parameters like GWS and SFI differed according to variety. Grain yield, the most important parameter for wheat, provided the highest results in different soil conditioner treatments depending on the varieties. T4 treatment caused clear increases in the SL, NSS, NGS, GWS and GY parameters. According to the data obtained was evaluated, soil conditioner applications caused a significant increase in the parameters examined in wheat. T4, which contains 25% organic matter + 65% humic acid + 6% potassium, was determined as the most effective soil conditioner for many parameters.
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    Investigation of Grain Yield and Biscuit Quality Capacities of Soft Bread Wheat (T. aestivumL.) Advanced Lines
    (Univ Namik Kemal, 2024) Erenler, Sultan; Bilgin, Oguz; Balkan, Alpay; Gocmen, Damla Balaban; Baser, Ismet
    The study was carried out with a total of 24 bread wheat genotypes including 20 advanced lines and 4 check varieties (Gerek79, Carisma, Bayraktar2000, and Artico) with soft grain structure and four replications according to the randomized complete block design in Hamidiye and Karabay & imath;r locations of Eski & scedil;ehir during the 2014-2015 growing season. In the study, grain yield, thousand grain weight, test weight, kernel hardness, Zeleny sedimentation value, ash content and protein content were investigated in the genotypes. According to the results of the analysis of variance performed for the traits examined in the study, the differences between location, bread wheat genotypes and interaction averages were found to be statistically significant, except for Zeleny sedimentation value and protein content, respectively. It is understood that there is a wide variation between genotypes and locations for other traits, except for the protein ratio trait. While location effects are higher than genotype effects for thousandgrain weight, test weight, ash content and protein content, genotype effects are higher than location for single kernel characterization system and Zeleny sedimentation value. The mean grain yield of biscuit wheat genotypes ranged from 4425kg ha-1to 2000kg ha-1. Considering the trial quality results; it was observed that there was a high rate of variation between genotypes for thousand grain weight (32.67-48.61 g), test weight (82.40-75.25 kg hl-1), kernel hardness(17.08-39.68), Zeleny sedimentation value(20.63-33.00 ml) and ash content (0.478% -0.610%), respectively. While B & Idot;S-3, B & Idot;S-6, B & Idot;S-9, B & Idot;S-18, B & Idot;S-21 and B & Idot;S-22 were best-performed lines for grain yield, B & Idot;S-3, B & Idot;S-9, B & Idot;S-11, B & Idot;S-12, B & Idot;S-13 and B & Idot;S-19 were the prominent lines for biscuit-making quality trait. It was concluded that it would be appropriate to include these lines in yield trials before registration as a variety of candidates.
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    Seedling Survivability and Change of Some Physiological Characters for Drought Resistance in Wheat
    (Hard, 2025) Baser, Ismet; Semerci, Seher Akseki; Gocmen, Damla Balaban
    Detection of genotypic variation in response to water stress at the seedling stage provides important contributions to plant breeders in the rapid and effective selection of drought-resistant genotypes. The study was conducted in 2021 under in vivo conditions using soil samples taken from the trial area of Nam & imath;k Kemal University Faculty of Agriculture Department of Field Crops and 45 genotypes, including 39 bread wheat, 1 rye, 1 Spella, 2 Kavl & imath;ca, and 2 Einkorn populations. Seedling survivability, stomata density, stomata width and length, seedling development score, canopy temperature, and chlorophyll content were examined to determine the early drought resistance in the experiment. When 45 genotypes in different maturing groups were examined for seedling survivability after drought application, the highest seedling survivability was found in Esperia, Rumeli, Krasunia O'deska, Almeria, Falado, and Rebelde varieties with 5 score values. Adelaide, President, Selimiye, Hakan, Quality, Hamza, LG 59, Golia, Siyez 1, and Siyez 2 genotypes showed the lowest seedling survivability. Esperia, Rumelia, Krasunia O'deska, Almeria, Falado, and Rebelde varieties, which have a high seedling survival rate, have low canopy temperature and high chlorophyll content. The data obtained show that early seedling survivability can be used in the selection of genotypes for drought resistance.