Botany Department, Bareilly College, Rohilkhand University, Bareilly (U.P.) India
Studies were made to determine the interaction between the growth regulatin substances IAA and kinetin and salinity on the growth and development of two varieties of Guar (Cyamopsis tetragonoloba L. Taub.). The growth of C. tetragonoloba (Var. S 2395) was stimulated with treatments by both of these hormones in controls not treated with salts. These results suggest that both varieties grow poorly under non-saline conditions because of some hormonal imbalance. IAA was found to stimulate growth at all salinity levels for both varieties, while kinetin proved to be inhibitory for growth and elongation of plants at higher salinity level. Chlorophyll content decreased with salt treatments and was not significantly influenced by hormonal treatments. IAA had little influence on water content in roots and shoots, whereas plants treated with kinetin showed reduction in their water contents.
