Determination the base temperature and study germination response of Isabgol( Plantago ovata) to different temperatures
2003
Nadjafi, F., PhD student of Agronomy | Rezvani -Moghaddam, P., Academic Member , Department of Agronomy.Ferdowsi University of Mashhad
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 day's 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؛C decreased the germination percentage. Key words: Isabgol, Plontago ovata, Germination, Base temperature.
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