Not Available

Not AvailableA field experiment was conducted during the kharif season of 2007 at Agronomy Research Farm, Chaudhary Charan Singh Haryana Agricultural University, Hisar to study the effect of crop geometry and nitrogen levels on growth and yield of newly develop pearl millet hybrid HHB197. Four spacing patterns viz., 45 x 12, 45 x 16, 60 x 12 and 60 x 16 cm and five nitrogen levels viz., control, 40, 80, 120 and 160 kg N ha-1 tested in factorial randomized block design (FRBD) with three replications. Plant growth in terms of height, dry matter accumulation plant-1, leaf area plant-1 increased significantly with increase in spacing at most of the stages of observations. Similarly, yield attributing characters like effective tillers plant-1, 1000 grain weight, length of earhead and girth of earhead increased significantly with increase in spacing.Not Availabl

Factors affecting seasonal changes in blood pressure in North India: A population based four-seasons study

Objective: There are no community based, longitudinal, intra individual epidemiological studies on effect of weather and season on blood pressure (BP). We evaluated the effect of season and temperature on prevalence and epidemiology of BP in tropical climate. Methods and results: It was a longitudinal cross sectional survey of rural and urban subjects in their native surroundings. BP was measured in four different seasons in same subjects. A total of 978 subjects (452 rural and 521 urban) were included in the current analysis. Demographic characteristics such as age, gender, education, occupational based physical activity and body mass index (BMI) were recorded. Mean BP, both systolic and diastolic were significantly higher in winter season as compared to summer season. Mean difference between winter and summer was 9.01 (95% CI: 7.74–10.28, p < 0.001) in systolic BP and 5.61 (95% CI: 4.75–6.47, p < 0.001) in diastolic BP. This increase in BP was more marked in rural areas and elderly subjects. Prevalence of hypertension was significantly higher during winter (23.72%) than in summer (10.12%). Conclusion: BP increases significantly during winter season as compared to summer season. Increase is more marked in rural areas and elderly subjects. Seasonal variation in BP should be taken into account while looking at prevalence of hypertension in epidemiological studies. Keywords: Seasonal variation, Blood pressure, Hypertension prevalence, Rural urban difference, Tropical climate, North Indi