Tuzlu sulama suyu uygulamalarının serada yetiştirilen frezya bitkisinin kalite özelliklerine etkisi

Bu çalışma, 2005 yılı Ekim ve 2006 yılı Nisan ayları arasında Batı Akdeniz Tarımsal Araştırma Enstitüsü’nde, topraksız kültürde farklı tuzlu su düzeylerinin serada yetiştirilen Frezya süs bitkisinin çiçeklenme, çiçek kalitesi ve yumru verimi üzerine etkilerinin belirlenmesi amacıyla yürütülmüştür. Çalışmada, Oberon, Athena ve Cordula olmak üzere üç farklı çeşit kullanılmıştır. Dört farklı tuz düzeyi (EC1 =1,5 dS m-1 (kontrol), EC2= 3,0 dS m-1, EC3 =4,5 dS m-1 ve EC4 =6,0 dS m-1) NaCl kullanılarak sağlanmıştır. Tuzlu sulama suyu uygulamalarının tüm Frezya çeşitlerinde yumru, yumrucuk, çiçek verimi, çiçek sapı uzunluğu, çiçek sapı kalınlığı, çiçek sayısı ve başak uzunluğunu azalttığı belirlenmiştir. Tuzluluk eşik değeri Athena, Oberon ve Cordula frezya çeşitleri için sırasıyla 2,7, 1,0 ve 3,0 dS m-1 olarak belirlenmiştir.

Anahtar Kelimeler:

Tuzlu su, Frezya, Çiçek kalitesi, Topraksız kültür

Effects of saline irrigation water applications on quality characteristics of freesia grown in greenhouse

This study was carried out in soilless culture to determine the effects of saline irrigation levels on flowering and flower quality of Freesia hybrids planted in a plastic greenhouse located in Bati Akdeniz Agricultural Research Institute between October 2005 and April 2006 under Mediterranean conditions. In the study, three freesia varieties, Oberon, Athena and Cordula corms were used. Four salinity levels, EC1 =1.5 dS m-1 (control), EC2= 3.0 dS m-1, EC3 =4.5 dS m-1 and EC4 =6.0 dS m-1, were applied using NaCl. It was found that saline irrigation water levels decreased the corm, cormel and flower yield, flower stem length and diameter, flower numbers and flower spike length in all freesia varieties studied. The threshold values for Athena, Oberon, and Cordula varieties were determined to be 2.7, 1.0, and 3.0 dS m-1, respectively.

Keywords:

Saline water, Freesia, Flower quality, Soilless culture,

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Salinity level (dS m-1) b