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    Determination of Yield and Quality Characteristics of Alfalfa (Medicago sativa L.) Varieties Grown in Different Locations
    (MEDWELL ONLINE, 2013) Avci, Mehmet Ali; Ozkose, Abdullah; Tamkoc, Ahmet
    This research was made in Konya and Polath-Ankara ecological conditions during the years of 2006 and 2007 according to Randomized Blocks Design with three replications The used alfalfa species were Verko, Sunter, Hemedan, Elci and Planet varieties and Kayseri population In the study, the fallowing characteristics were determined plant height (cm), stem thickness (mm), green herbage yield (t ha(-1)), dry matter yield (t ha(-1)), crude protein content (%) and crude protein yield (t ha(-1)) As the means of 2 years and two locations, the genotypes showed the fallowing values 620-682 cm for plant height, 30-32 mm for stem thickness, 838-891 t ha(-1) for green herbage yield, 209-223 t ha(-1) for dry matter yield, 185-194% for crude protein content and 402-422 t ha(-1) for crude protein yield The main goal of alfalfa farming is production of high quality and abundant roughage Kayseri population showed the highest dry matter yield (22 29 kg/da/year) and it was followed by the Verko (22 25 kg/da/year) variety The Verko variety had higher yield than Elci and partially more than Hemedan variety.
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    Effects of sowing dates and cultivars on protein and mineral contents of bean (Phaseolus vulgayis L.)
    (ASIAN JOURNAL OF CHEMISTRY, 2008) Ceyhan, Ercan; Harmankaya, Mustafa; Avci, Mehmet Ali
    Six bean cultivars were grown at four different sowing dates for two years to study the effects of sowing date, genotypic and growing seasons on protein and mineral contents. The protein and mineral contents of bean are influenced by growing seasons, sowing date and genetic factors. This study investigated differences in protein and mineral contents in grains of six bean (Phaseolus vulgaris L.) cultivars. Protein content ranged 21.40-27.29 %, phosphorus 570.00-796.59 mg/100g, potassium 1856.40-2159.24 mg/100 g, magnesium 74.56-197.95 mg/100 g, calcium 120.06-182.65 mg/100 g, sodium 45.57-51.89 mg/100 g, iron 6.50-8.41 mg/100 g and zinc 1.69-2.27 mg/100 g, respectively with significant differences; among bean cultivars. The effects of years, sowing date, cultivars, year x cultivars; interaction, year x sowing date interaction, cultivars x sowing date interaction and year x cultivars x sowing date interaction were highly significant, but the variation was mainly attributed to the environment and sowing date. In general, protein, phosphor-us, potassium, calcium, sodium and iron content increased with delayed sowing. Unlike, the zinc content decreased with delayed sowing.
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    Line X tester analysis in pea (Pisum sativum L.): Identification of superior parents for seed yield and its components
    (ACADEMIC JOURNALS, 2008) Ceyhan, Ercan; Avci, Mehmet Ali; Karadas, Serdar
    This research was carried out to investigation the genetic structure of the 24 F-1 pea hybrids established from eight exotic female lines and three local winter hardiness male testers, to determine parents showing general combining ability (GCA) and determine crosses showing specific combining ability (SCA.), and to evaluate the heterosis. Broad genetic variability was observed among the genotypes. Estimates of variance due to GCA and SCA and their ratio revealed predominantly non-additive gene effects for all studied traits. While PS9830S329 (female) and H (male) were the best general combiners among the parents, PS9830S329 x B-12 was the best cross for seed yield. Hybrids generally showed greater yield potential than their parental genotypes. Heterosis was observed in some hybrids for each trait studied.
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    PERENNIAL RYEGRASS (LOLIUM PERENNE L.) GENETIC RESOURCES IN THE CENTRAL ANATOLIA FLORA AND ENVIRONMENTAL PRESSURES ON BIODIVERSITY
    (PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2015) Ozkose, Abdullah; Avci, Mehmet Ali; Tamkoc, Ahmet
    This research was made in 2006-2007 to collect and develop perennial ryegrass genotypes which exist in the natural flora of Turkey. During plant collection, it was observed that perennial ryegrass genotypes were damaged due to decrease of meadows and pasture areas, and the increase of grazing pressure in these areas. Decrease of wetlands, marsh areas and drying of lakes, or decrease of their area depending on precipitation reduction and over-consnmption of water resources negatively influenced perennial ryegrass genotypes in the natural flora. Like many other plants in natural flora, perennial ryegrass genotypes are under great pressure and threat. Therefore, it must be concentrated on activities for improvement of plant varieties and protection of biological diversity of natural ryegrass resources, which has been decreasing day by day.
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    Study of Genotype x Environment Interaction on Agricultural and Quality in Sainfoin (Onobrychis sativa) Genotypes
    (MEDWELL ONLINE, 2013) Avci, Mehmet Ali; Ozkose, Abdullah; Tamkoc, Ahmet
    This research was conducted to determine yield, yield components and quality characteristics of sainfoin genotypes m two locations winch were consisted from Selcuk University, Agricultural Faculty trial field (Konya) and Turkoba Village (Polath/Ankara) according to the Randomized Blocks Design with 4 replications Some traits such as plant height (cm), stem thickness (cm), green herbage yield (t ha(-1)), dry herbage yield (t ha(-1)), crude protein content (%), crude protein yield (kg ha(-1)) and ash content (%) were examined The characteristics of dry herbage yield, crude protein content and crude protein yield winch are known as the most important properties m forages were found as fallowing, 3 275-4 958 t ha(-1), 10 08-13 55% and 355 00-602 25 kg ha(-1), respectively.