Bu araştırma, Şanlıurfa koşullarında bazı salep türlerinin (Ophrys lutea Cav., Serapias vomeracea (Burm. Fill.) Brig, Ophrys mammosa Desf., Ophrys umbilicata Desf. ve Orchis sancta L.) bitkisel özellikleri ve glukomannan içeriklerinin belirlenmesi amacıyla, 2016-2017 kışlık ürün yetiştirme döneminde, Harran Üniversitesi Ziraat Fakültesi, Osmanbey Kampüsü deneme arazisinde, tesadüf blokları deneme desenine göre, 3 tekrarlamalı olarak yürütülmüştür. Araştırmada, morfolojik gelişme dönemlerine bağlı olarak bitkilerde, yaprak genişliği ve boyu, yaprak sayısı, yumru sayısı, bitki boyu uzunluğu, çiçek sayısı ve glukomannan oranı özellikleri incelenmiştir. Araştırma sonucunda, bitki boyunun 9.71-24.33 cm, bitki başına çiçek sayısının 2.50-12.03 adet bitki-1 , bitkide yaprak sayısının 2.10-5.16 adet bitki-1 , yavru yumru sayısının 1.00-1.50 adet bitki-1 , yaprak boyunun 2.82-9.34 cm, yaprak eninin 1.33-1.95 cm, bitki başına yumru veriminin 1.69-9.11 g bitki-1 ve glukomannan oranının %28.60-59.63 arasında değişim gösterdiği saptanmıştır. En yüksek yumru verimi elde edildiği Orchis sancta L. ve en yüksek glucomannan oranının saptandığı Serapias vomeracea (Burm Fill.) Brig., türlerinin Şanlıurfa koşullarında yetiştirilebileceği söylenebilir.

This research was managed to identify the effects of the different seed quantity (5, 10, 15 and 20 kg.ha–1) and row interval (15 and 30 cm) on the yields and the volatile oil components of fennel (Foeniculum vulgare Mill.) under the Harran Plain conditions, during 2013 and 2014 years. The study was established according to the split plot in randomised complete block design. Seed and volatile oil yields, volatile oil ratio and volatile oil components were importantly affected seed quantity and row interval. The transaction of 15 cm × 10 kg.ha–1, the highest seed and volatile oil yield were taken, was determined to be the most suitable. The trans-anethole was taken the primary component under all transactions and it was changed to depend on the row interval and seed quantities.

The effect of bulb sizes on the bulb yield and some plant characteristics of Narcissus tazetta subsp. tazetta L. Soğan iriliklerinin Narcissus tazetta subsp. tazetta L.'da soğan verimi ve bazı bitkisel özelliklere etkisi

No abstract

This study was conducted to determine the effect of diurnal variability on yield and quality characteristics of saffron (Crocus sativus L.) under the conditions of Harran Plain on research fields of Faculty of Agriculture of Harran University during winter growing seasons in 2006-2007 and 2007-2008. The trial was arranged in randomized complete block design with three replicates. For determining the effect of diurnal variability, three different flower harvest times were used in the research: 07.00 hours, 12.00 hours and 17.00 hours. The following parameters including plant heights (50.47-50.73 cm), stigma lengths (3.44-3.47 cm), stigma weights (7.55-7.57 mg), saffron yields (1958.7-1959.5 g daˉ¹), safranal ratio (‰ 37.57-39.93), crocin ratio (‰192.5-200.0), picrocrocin ratio (‰86.97-89.63), corm numbers per plant (4.77-4.87 number plantˉ¹), corm yields (3663.0-3669.0 kg daˉ¹) and marketable corm ratios (%70.90-71.67) were determined in the study. As a result, it was recommended that the saffron should be harvested at 07:00 and at the day of full flowering under Harran Plain conditions.