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ALLEVIATING SEED DORMANCY OF TECTONA GRANDIS L. BY TEMPERATURE, PLANT GROWTH REGULATERS AND INORGANIC SALTS

TAHIRA JATT, M. SUHAIL, HIDAYTULLA ABRO AND ABDUL SATAR LARIK*

Abstract: Preliminary studies on the germination of teek seeds (Tectona grandis L.) were carried out at the institute of Plant Sciences, University of Sindh by subjecting the seeds with some physical and chemical methods. The viability of seeds were confirmed by 2,3,5- triphenyltetrazolium Chloride. Results revealed that by altering temperature at the germination stage the inhabitatry effect of seed coat was reduced. However scarification treatment with  GA₃, Kinetine, H₂SO₄ and KNO₃ also promote the seed germination due to increased softening of the seed coat.

Institute of Plant Sciences, University of Sindh, Jamshoro, Pakistan

^*Department of Plant Breeding and Genetics, Agriculture University Tandojam, Pakistan.