National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present investigation entitled with “Polyamine effect on biochemical events in sugarcane grown on sodic soils” was carried out to study the efficacy of polyamines viz., putrescine and spermidine to ameliorate the effect of soils sodicity by assaying the osmolytes viz., proline, glycine betaine, the antioxidant enzymes viz., ascorbate peroxidase, catalase, superoxide dismutase. These were assayed from the leaves of the two sugarcane cultivars viz., the salt tolerant CoM 0265 and salt susceptible CoC 671 grown on sodic soils. The polyamines were applied at 0, 100 and 500μM concentration. The two foliar application of these polyamines were carried out 45 days after planting with 8 days interval. The leaf samples were collected after 65 days after planting for futher biochemical analysis. The antioxidant activities viz., ascorbate peroxidase, catalase and superoxide dismutase were found to be higher in salt tolerant cultivar CoM 0265 than CoC 671 a salt susceptible cultivar on normal and plants grown on sodic soils. Sodicity caused increase in activities of these enzymes in both the cultivars. However, with the application of polyamine the activities were increased more than the control in both cultivars. It was observed that the activity of ascorbate peroxidase was significantly higher at 500μM concentration of polyamines in salt susceptible cultivar CoC 671 than the salt tolerant CoM 0265 cultivar of sugarcane.
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