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Öğe Adaptability of newly improved creeping bentgrass (Agrostis stolonifera L.) genotypes in a mediterranean environment(Society of Field Crops Science, 2014) Kavut Y.T.; Avcioglu R.; Demiroglu G.; Geren H.; Kir B.Creeping bentgrass (Agrostis stolonifera L.), with a mild shade tolerance, is a stoloniferous cool season turf grass adaptable to temperate climatic conditions. Recently new genotypes were improved by breeders in the USA, having respectively higher heat and drought tolerance. In an attempt to evaluate the adaptability of this type of bentgrass genotypes, an experiment were established on the experimental farm located at Bornova, Ege Univ. Agric. Faculty, Izmir, Turkey during the years of 2007 and 2009. Six genotypes of bentgrass and traditional cultivar “Kromi” as control were tested for two years and turf grass color, cover, weed infestation and turf quality were assessed by a visual scoring (1-9 points). Results indicated significant variations among the genotypes in terms of the evaluated characteristics and the average adaptability of some genotypes of which some traits such as cover and turf quality were in an acceptable range. It was also suggested that distinguished genotypes such as genotype M65-6-OVN-28, M71-6-26-294 and M39-6-20 should be tested furthermore and for other agronomical characteristics. © 2014, Society of Field Crops Science. All Rights Reserved.Öğe The determination of yield and some quality characteristics of ungrazed natural pasture vegetation(Parlar Scientific Publications, 2018) Yilmaz M.; Kir B.This study was conducted with the aim of guiding future breeding studies on pastures by determining the effects of protection from grazing and contributing to the development of animal husbandry. It comprises the April 2007-September 2014 period of research carried out on a natural pasture protected in the ecological conditions of the Tokat province between 1993-2014. According to the eight year mean values of the study, the data of basal cover area acquired according to transect, quadrat and visual estimation methods was 81.25%, 73.35% and 74.25% respectively. Botanical composition based on the basal cover area and the weight, and hay yield was; 39.58%, 71.09%, 8.548 kg ha-1 in legumes, 48.78%, 22.14%, 2.662 kg ha-1 in grasses, and 11.61%, 6.77%, 815 kg ha-1 in other families respectively. Total hay yield was determined as 12.025 kg ha-1, 91% of which was formed by 34 species (10.940 kg ha-1). A grazing capacity of 16.7 Animal Unit (AU; 500 kg livestock) was observed, required area per animal was 0.3 ha and pasture quality degree was 8.4 (very good). Regarding other quality properties; crude protein content (CPC) was 19.76%, crude protein yield (CPY) 237.6 kg ha-1, acid detergent fiber (ADF) 28.54%, neutral detergent fiber (NDF) 42.35%. © by PSP.Öğe Effects of grazing on some yield and quality traits of a rotation pasture mixture under Mediterranean enviromental conditions(2010) Kir B.; Demiroglu G.; Avcioglu R.; Soya H.This study was conducted in the experimental fields of Field Crops Department of Agriculture Faculty in Ege University, Bornova, Izmir-TURKEY under Mediterranean environmental conditions in the years, 2003-2009. Three legumes (Medicago sativa, Lotus corniculatus and Trifolium resupinatum) and four grasses (Bromus inermis, Festuca arundinaceae, Dactylis glomerata and Arrhenatherum elatius) with Sanguisorba minor were sown in rows 15 cm apart and tested for some yield and quality characteristics under cattle grazing regime. Medicago sativa and Festuca arundinaceae were the permanent and most successful legume and grass in the mixture in terms of botanical composition and cover traits throughout the experimental years. With respect to dry matter and crude protein yield characteristics, same components of the mixture also performed very well and have been evaluated as recommendable for all resembling Mediterranean environments. It was also suggested that Lotus corniculatus and Arrhenatherum elatius, both exhibiting stable and sustainable dry matter and crude protein yield contribution to overall performances of the sward, should be included in this type of Mediterranean pasture mixture. The general performance of this rotation pasture mixture was quite sustainable and suggested to utilize the sward economically for another couple of years.Öğe Effects of overseeding times on different warm season turfgrasses: Dormancy periods, germination and seasonal transition characteristics(Parlar Scientific Publications, 2021) Ozkan S.S.; Kir B.This study was conducted in the research fields of Field Crops Department of Agriculture Faculty, Ege University, Izmir/Turkey during 2014-2016 years. Some commercial and widely used warm season turfgrasses (Cynodon dactylon cv. SR9554, Cynodon dactylon x Cynodon transvaalensis cv. Tifway-419) in addition to newly introduced turfgrasses (Paspalum vaginatum cv. Sea Spray and Zoysia japonica cv. Zenith) were chosen as plant material. To search the effect of overseeding techniques imposed in four different times (September 15, September 30, October 15 and October 30) on these selected warm season turfgrasses during fall season were aimed. For this purpose, dormancy period (day), germination speed (day), cover speed (day), fall transition (1-9 score) and spring transition (1-9 score) were tested in quality characteristics. Results of the study displayed that Lolium perenne L. can be practiced successfully in the ecologies like our trial location in Mediterranean ecology, in order to eliminate the problems of warm season turfgrasses in the dormancy process observed in winter season. Additionally, it was concluded that optimum overseeding time should be October 15. © by PSPÖğe Investigations on texture weed invasion and density features of some cool season turf grass cultivars in mediterranean environment(2011) Demiroglu G.; Avcioglu R.; Kir B.; Salman A.This study was conducted in 2003-2005 at Bornova experimental field in Ege University, Izmir-Turkey. Newly introduced and popular cultivars of perennial ryegrass (Lolium perenne L.), tall fescue (Festuca arundinaceae Schreb.), kentucky bluegrass (Poa pratensis L.), colonial bentgrass (Agrostis tenuis Sibth), sheep fescue (F. ovina L.), chewings red fescue (F. rubra spp. rubra commutata Gaud), slender creeping red fescue (F. rubra L. spp. trichophlylla Gaud) and chewings red fescue (F. rubra spp. rubra commutata Gaud) were tested for turf texture, weed invasion and density features for the aim of generating information for further investigations in the area and resembling Mediterranean ecologies and turf specialists in turf grass cultivar selection and recommendation. All of the F. arundinaceae cultivars (Mustang, Houndog, Finelawn & Cochise) with outstanding density and weed invasion scores were the best performers. The L. perenne cultivars with an acceptable level of texture scores and relatively high density and invasion scores ranked second among all cultivars tested. Ovation and Delaware were the outstanding genotypes. All other cultivars of F. ovina, Agrostis tenuis and F. rubra subspecies, having had very limited turf scores, were found to be not recommendable for Mediterranean ecologies. © 2011 Friends Science Publishers.Öğe Performances of some cool season turfgrass cultivars in mediterranean environment: II. Festuca arundinacea Schreb., Festuca ovina L., Festuca rubra spp. rubra L., Festuca rubra spp. trichophylla Gaud and Festuca rubra spp. commutata Gaud(2010) Demiroglu G.; Geren H.; Kir B.; Avcioglu R.The commitment to turf research is more recent and is challenged by the diversity of climatic conditions occurring in Anatolian peninsula of Turkey. These differences in climatic factors and environmental variation may determine the specific adaptation of species to certain areas and complicate the species and cultivar recommendations. In this present study, aiming to evaluate the adaptability and quality of newly introduced cultivars of different cool season turfgrass species in a Mediterranean environment in western Turkey, Bornova-Izmir, four cultivars of Tall fescue (Festuca arundinacea Schreb), Sheep fescue (Festuca ovina L), Festuca rubra L. spp. trichophlylla Gaud (Slender creeping red fescue) and Festuca rubra spp. rubra commutata Gaud (Chewings red fescue) and six cultivars of Festuca rubra spp. rubra L. (Creeping red fescue) were tested for 3 years (2003-2005) in a replicated experimental block group design. Turf cover, colour and quality traits of these cool season turfgrass cultivars were evaluated by using a visual score (1-9) and the target of the generated information was the support turfgrass specialist in turfgrass cultivars selection and recommendations and research institutions for their breeding programs. Results indicated that tall fescue cultivars were the only genotypes maintaining high scores of cover, colour and quality in different seasons and years. Sheep fescue cultivars were also consistent throughout the experimental years, although their colour, cover and quality scores were not high. We also suggested that all red fescue sub-species were not fully adaptable to Mediterranean conditions and their usage had to be limited in turf mixtures.Öğe Performances of some cool season turfgrass species in mediterranean environment: I. Lolium perenne L., Festuca arundinacea Schreb., Poa pratensis L., and Agrostis tenuis Sibth(2010) Kir B.; Avcioglu R.; DemIroglu G.; Simic A.The commitment to turf research is more recent and is challenged by the diversity of climatic conditions occurring throughout the Anatolian peninsula in Turkey, thereby complicating the recommendation of species and cultivars. Assessing the peculiarities of turfs during the growing period and the efficient use of turf for establishing lawns requires field evaluation of the existing cultivars particularly in the sites with a Mediterranean climate. Our study is aimed at evaluating the adaptability and quality of the popular cultivars (introductions) of cool season turfgrass species in a Mediterranean site in western Turkey, Bornova/IZMIR. Six cultivars of perennial ryegrass (Lolium perenne L.), four cultivars of tall fescue (Festuca arundinacea Schreb.), four cultivars of Kentucky bluegrass (Poa pratensis L.) and four cultivars of colonial bentgrass (Agrostis tenuis Sibth) were tested for 3 years in a replicated experimental block group design. Turf cover, colour and quality traits of each cultivar in each species were evaluated by using a visual score (1-9) and assessed in each season from 2003 to 2005. Cultivars of tall fescue and to some extent perennial ryegrass species were better able than those of Kentucky bluegrass and colonial bentgrass to cope with the existing Mediterranean climatic condition. All species performed better in winter, spring and autumn than summer season, except for tall fescue. Kentucky bluegrass and colonial bentgrass cultivars were not found recommendable for Mediterranean environment.Öğe Turf and playing quality traits of some new turfgrass alternatives in a mediterranean environment(Society of Field Crops Science, 2019) Kir B.; Avcioglu R.; Salman A.; Ozkan S.S.In an attempt to investigate the turfgrass and playing quality characteristics of some newly introduced warm season turf grasses and traditional cool season sports turf mixture, classical and contemporary techniques were imposed on the turfgrass experimental plots of the research area of Department of Field Crops, Agriculture Faculty of Ege University, Bornova/Izmir/Turkey. Some warm season turfgrasses (Cynodon dactylon cv. SR9554, Cynodon dactylon x Cynodon transvaalensis cv. Tifway-419, Paspalum vaginatum cv. Sea Spray and Zoysia japonica cv. Zenith) and traditional cool season sports turf mixture were tested in terms of visual turf quality and playing quality traits (ball rebound, ball roll and shock absorption) on a monthly and seasonal bases for three years under Mediterranean environmental conditions. Significant variations were determined among the turfgrass alternatives in all traits except years. It was concluded that Tifway-419 and Sea Spray turf grasses were the most successful and promising alternatives compared to the other options under Mediterranean environmental conditions. © 2019, Society of Field Crops Science. All rights reserved.
