تعيين درجه حرارت پايه و بررسي واكنش جوانه زني بذر و گياه دارويي اسفرزه plantago ovata نسبت به درجه حرارت هاي مختلف

Determination the base temperature and study germination response of Isabgol (Plantago ovata) to different temperatures

In order to study the response of Isabgol (Plantago ovata ), seed germination, to different temperatures and determine the base temperature of germination , an experiment was conducted. In this experiment the effects of six temperatures as:4,5,7,10,15 and 20°C were studied on percentage of germination ,using a completely randomized design in four replications under controlled conditions of germinator. Base temperature of germination was determined using a linear regression equation between germination rate ( inverse of dayʹs numbers to 90 percent of germination) ,and temperature. Results showed that the base temperature of germination for Isabgol was 1.5"C and the optimum temperature of germination was in the range of 4-10°c. Increasing temperature from 10°^ decreased the germination percentage.