27.
Khan M.A., Ashraf M.Y., Mujtaba S.M., Shirazi M.U., Khan M.A., Shereen A., Mumtaz S., Siddiqui M.A., and Kaler G.M., 2010. Evaluation of high yielding canola type brassica genotypes/ mutants for drought tolerance using physiological indices as screening tool. Pak. J. Bot., 42, 3807-3816.