Bio-Molecular Analysis of the Effects of Salinity Stress on Sugarcane Genotypes at Elongation Stage

Abstract

Bio-molecular analysis often Sugarcane Genotypes under salinity stress conditions at Elongation stage was studied. Three replications of ten sugarcane varieties vizCoSe 03234, CoS 03251, CoS 95255, CoSe 01424, CoSe 01434, CoS 03261, CoS 07250, CoSe 96436, CoS 97261 and UP 49 were exposed to normal (0.4 dsm-1) and saline (8.0 dsm-1) soil treatment. Different morphological and biochemical parameters were evaluated to understand the irregularities in plant growth at their elongation stage due to salinity of soil. Morphological characters, such as mother shoot height, leaf surface area and the number of green leaves, wereconjointlyfound reduced in saline soil condition plants as compared to normal ones. Among the evaluated biochemical parameters,protein, free amino acids and proline contents were found to be increased in saline soil condition plants as compared to normal. Further,CoSe 03234, CoS 95255and CoS 03251 sugarcane varieties emerged as early maturing varieties and CoSe 01424, CoSe 01434, CoS 03261, CoS07250, CoSe 96436, CoS 97261 as well as UP 49 were observed as mid-late maturing varieties based ontheir morphological and biochemical traits at the elongation phase under saline conditions.