NaCl’nin indüklediği tuz stresinin erken büyüme evresindeki aspir (Carthamus tinctorius L.) çeşitleri üzerine etkisi

Tuzluluk, kurak ve yarı kurak bölgelerde bitki büyümesi ve gelişimini etkileyen önemli problemlerden birisidir. İklimsel faktörler, ana kayaların ayrışması, okyanuslar ve sulama sularının kullanımı tuzlu toprakların oluşmasının nedenleridir. Bu çalışmada, Türkiye’nin tescilli aspir (Carthamus tinctorious L.) çeşitlerinin (Dinçer, Remizbey-05 ve Yenice) çimlenme ve erken fide evresi üzerine farklı tuz konsantrasyonlarının [O (kontrol), 75, 150, 225 ve 300 mM NaCI] etkileri incelenmiştir. Bu deneysel çalışma ile aspir çeşitlerinin erken fide evresinde farklı NaCl konsantrasyonlarından olumsuz etkilendiği ve çeşitler birbirleriyle karşılaştırıldıklarında tuz toleranslarında bazı farklılıklar olduğu da gösterilmiştir. Bu nedenle, aspir bitkisinin tuza karşı orta derece toleranslı olduğu ileri sürülebilir ve her iki evreden elde edilen sonuçların değerlendirilmesine göre aspir çeşitleri toleranslı (Yenice), orta derece toleranslı (Dinçer) ve duyarlı (Remzibey-05) olarak sınıflandırılabilir.

Effect of salt stress induced by NaCl on safflower (Carthamus tinctorius L.) cultivars at early seedling stages

Salinity is one of the major problems to affect plant growth and development in arid and semi arid regions. The reasons of the formation of the salty soil are climatic factors, weathering of parental rocks, oceans and using salty water for irrigation. In this study, the effect of different salt concentrations [0 (control), 75, 150, 225 and 300 mM NaCl] on the germination and early seedling stage of the three safflower (Carthamus tinctorious L.) cultivars (Dinçer, Remzibey-05 and Yenice) which are registered cultivars of Turkey were investigated. By the experimental study it was reported that safflower cultivars were negatively affected from different NaCl concentrations at early seedling stages and also, some differences at their salt tolerances to compare each others. Thus, it is suggested that safflower is moderately salt tolerant plant and safflower cultivars may be classified as tolerant (Yenice), moderately tolerant (Dinçer) and sensitive (Remzibey-05) by evaluating results obtained from both stage.

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