The Effect of Different Salt Concentrations on Germination and Emergence of Some Safflower (Carthamus tinctorius L.) Variety

Abstract

This study was carried out to determine the response of some safflower varieties to salt stress during germination and emergence it was conducted in 2018. Asol, Balcı, Dinçer, Linas and Olas varieties were used as material. In the study; 3 different doses of NaCl pure water (control), 100 mM, 200 mM and 300 mM) was applied to safflower seed during germination and emergenge. Germination experiment was carried out in climate cabinet (25 °C) in the petri dishes according to the arrangement of factorial experiments in random plots with 4 replictions. Emergence experiments were carried out in the climate cabinet (25 °C) in the plastic cups field with peat (3/4), pearlite (1/4) mixture. As a result; germination rate of safflower varieties 69-100%, sensitivity index 1.00-1.67, emergence rate 5.00-97.50, seedling lenght 13.4-115.9 mm, fresh seedling weight 0.077-0.476 g fresh root weight 0.110-0.161 g and salt tolerance percentage is determined between 11.4-28.6. Also In the experiment, mean germination time (day), germination index, mean emergence time (day), root length (mm), dry seedling weight (g), dry root weight (g), and emergence index properties examined. Depending on the increase in salt concentrations, germination time, (day) sensitivity index and emergence time (day) values increased significantly. and germination index, emergence rate, seedling length, (mm) root lenght, (mm) fresh seedling weight, (g) fresh root weight, (g) dry seedling weight, (g) dry root weight, (g) salt tolerance percentage (%) and emergence index values decreased significantly.