The present study was intended to appraise the oxidant and antioxidant status in preeclampsia women. Seventy-seven preeclampsia women with severe variety having average B.P. of 170/140 mmHg with proteinuria; 47 preeclampsia women with mild variety having average B.P. of 138/100 mmHg were compared to 56 healthy pregnant women and 15 non-pregnant women for oxidant and antioxidant status. Lipid peroxidation was assessed by measuring malondialdehyde (MDA), and antioxidant status was assessed by measuring antioxidant enzymes N.B.; superoxide dismutase (SOD), glutathione peroxidase, catalase and vitamins viz; A, E, C and reduced glutathione (GSH). Lipid peroxidation was significantly higher in severe preeclampsia women. Antioxidant status was also compromised as is evident from decreased GSH levels and increased SOD activities not only in severe preeclampsia but also in normal pregnancy and mild preeclampsia women compared to non-pregnant women. Decreased antioxidant enzyme activity viz catalase and glutathione peroxidase was observed in pregnancy as compared to non-pregnant women. The levels of vitamin E which act as an antioxidant were significantly elevated in preeclampsia compared to that of normal pregnancy. These findings conclude that initially the oxidative stress due to pregnancy-induced hypertension is critically combated by the intricate defensive mechanism of natural antioxidant system of the body. It appears that this imbalance between oxidant and antioxidant is the effect of disease and not the causative factor.
A field experiment entitled was conducted at central farm OUAT, Bhubaneswar under Department of Soil Science & Agricultural Chemistry during Kharif 2017. The physiological studies were carried out in the Department of Plant Physiology, College of Agriculture, Bhubaneswar. The result revealed that plant height, number of leaves and dry matter were improved by the level of P application. Among the treatments application of 100% P(SSP)+0.2% LR registered significant increase in of the above growth character in maize crop which reflect a higher value of LAI, CGR, RGR and lower value of NAR. Chlorophyll content was found to be maximum in T7 (100% SSP + 0.2% LR) followed by T5 (50% RP+50% SSP). The other nutritional components like carbohydrate, protein and sugar of grains increased significantly with increase in the level of P application. Higher concentration of nutrient elements (N, P, K and S) found maximum in 100% SSP + 0.2% LR in both grain and Stover. Among the different combination of RP and SSP, taller plant and highest no. of leaves were produced by application of 50% RP+50% SSP with higher dry matter accumulation. The biochemical traits like nutritional composition (carbohydrate, protein & sugar) found maximum with the application of 50% RP+50% SSP among the combined application. But in the combination of RP and SSP nutrient contents (N, P, K & S) found maximum with application of 25% RP+75% SSP in Stover and with the application of 50% RP+50% SSP found maximum in grain. The grain yield in maize increased significantly with increase in the level of P application due to increase in cob weight, no. of grain per plant, cob length, cob diameter, 100 seed weight and the highest yield registered among the treatments by the application of 100% SSP+0.2% LR. Among the combined application of 50% RP+50% SSP registered the highest yield over the sole application of either R or SSP. In view of the positive and beneficial effect of P application in maize crop it may be concluded that improvement in productive of maize crop by the use of low grade rock phosphate under acid soils can be possible through combined application of 50% RP + 50% SSP.
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