Turkish Journal of Field Crops

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2. Beyler İş Hanı, No: 313 Kat: 3 Konak-İzmir

INVESTIGATIONS ON THE AGRONOMIC AND SPORTS FIELD CHARACTERISTICS OF SOME TURF ALTERNATIVES CUT AT DIFFERENT HEIGHTS IN A MEDITERRANEAN ENVIRONMENT

Ali SALMAN , Behcet KIR , Riza AVCIOGLU , Sukru Sezgi OZKAN

Abstract

In an attempt to investigate the turf alternatives most adaptable to sports fields under Mediterranean ecology, three different turf alternatives (1- Tall Fescue 100%, 2- Tall Fescue 60% + Perennial Rye Grass 40% and 3- Traditional Cool Season Sports Turf Mixture: Perennial Rye Grass 50%, Creeping Red Fescue 20%, Chewing's Red Fescue 10%, Sheep Fescue 10%, Kentucky Blue Grass 10%) under three vertical cutting height regimes (12 - 22 - 32 mm) were tested in the turf experimental fields of Ege University Bayindir Vocational School, Izmir/Turkey in 2012-2014. Turf color and cover were determined to evaluate the adaptability of selected turf alternatives in the experiment. Ball rebound, ball roll, and evenness were also measured to identify the playing quality parameters of these turf stands in the same experimental plots. The overall results obtained from the experiment revealed that statistically significant differences occurred among the turf alternatives and different cutting heights. However, pure tall fescue turf and the 60% tall fescue + 40% perennial rye grass turf mixture performed better than the traditional mixture. Although significant differences were recorded among the mowing heights, pure tall fescue turf displayed better performance compared to traditional cool season sports turf mixture.

Keyword: Ball rebound, ball roll, evenness, turf color, turf cover ,

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