IMPACT OF SALTPANS (NaCl) ON C3 (CAJANUS CAJAN (L.) MILLSPAUGH) AND C4 (SORGHUM BICOLOR (L.)) CROP PLANTS IN THREE DIFFERENT AREAS AND THEIR DIFFERENTIAL RESPONSES ON THE SEED GERMINATION PERCENTAGE.
K. Manipriyanka* and B. Sujatha
ABSTRACT
An attempt was made for the first time in the Visakhapatnam district to assess the impact of saltpan effluent on available soils in the farms existing in and around saltpans. A total of thirty soil samples from three sampling farm sites were collected along the coastal line and analysed for physico-chemical parameters. The results obtained conclusively suggest the detrimental impact of saline effluents on soil quality in Area-2 and Area-3, rendering it unfit for agricultural purpose. The present study shows the effect of sodium chloride salinity in the seedlings of C3 (Cajanus Cajan) and C4 (Sorghum biocolor) crop plants in three different areas. Differential responses of the growth parameters such as the percentage of seed germination (GP), germination index (GI) and coefficient of germination velocity(CVG) in two genotypes is observed. The GP, GI and CVG appered to be decreased in Area-2 and Area-3 when compared to Area-1 in both the crop plants.
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