ارزیابی میزان تحمل 49 اکوتیپ زیره سبز به تنش خشکی

This study was conducted to assess the drought tolerance of 49 ecotypes of cumin and identification the most tolerant and most susceptible ecotype, In the reaserch field of Shahid Bahonar University of Kerman based on 7*7 arrangment lattice design was carried out over three years( grain seoson 2008-2010 ). The results of data analysis showed that the performance of both normal and stress environments and over three years is significant. While no significant were found between normal and stress condition each ecotype in 3 years. based on the results of STS(Stress Tolerance Score), Sirjan and Ferdous ecotypes were distinguish as the most tolerant and sensitive respectively.Finally it can be cancluded that cumin germplasm. of Iran has considerable diversity in terms of drought tolerance And there is the chances to achieving tolerant genotype through classical breeding programs there.
Keywords :drought stress, cumin ,index of drought and sensitive Tolerance.