Department of Botany, Haryana Agril. University, Hisar-125004
Twenty-five genotypes of Guar (Cyamopsis tetragonaloba L.) were germinated at four conductivity levels viz. 4, 8, 12 and 16 ds m−1 with distilled water to serve as control. The seedlings were sampled after 120 hr of soaking. The final percent germination did not vary much with salinity levels while root elongation was consistently increased, the shoot length decreased with increment in salinity. Similarly, fresh weight of shoot and root was considerably reduced, but that of cotyledons was enhanced with higher levels of salt stress. Dry weight of the root and shoot did not differ appreciably. However, depletion of dry weight from the cotyledons was less with increase in salinity. Of the cultivars studied, PLG-119 and HGS-18 were found relatively salt tolerant and PNB followed by HG-258 were salt sensitive.
