Browsing by Author "Manjunatha, N."

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    Effect of Irrigation Scheduling on Growth, Yield and Irrigation Water use Efficiency of Linseed (Linum usitatissimum L.)
    (Ms. M. B. Mondal, 2024-11) Hireholi, G; Patil, DH; Ananda, N; Rathod, PS; Rajkumar, R; Manjunatha, N.
    A field experiment was conducted to study the effect of irrigation scheduling on growth, yield and water use efficiency of linseed (Linum usitatissimum L.) at Main Agricultural Research Station (MARS), Raichur, during the rabi season of 2023-24. The experiment was laid out in a randomized complete block design with five treatments, replicated four times. There were five treatments viz., T1: Pre sowing irrigation only, T2: Pre sowing irrigation fb one irrigation at vegetative stage (30-35 DAS), T3: Pre sowing irrigation fb two irrigations at vegetative stage (30-35 DAS) and flowering stage (40-45 DAS), T4: Pre sowing irrigation fb three irrigations at vegetative stage (30-35 DAS), flowering stage (40-45 DAS) and capsule development stage (60-65 DAS) and T5: Rainfed condition. The results revealed that significantly higher plant height (60.94 cm), number of branches plant-1 (6.18), leaf area (36.94 cm2 plant-1), total dry matter production (16.41 g plant-1), number of capsules plant-1 (44.27), number of seeds (8.18 capsule-1), seed weight (2.98 g palnt-1), seed yield (1106 kg ha-1) and straw yield (2344 kg ha-1) was registered with pre-sowing irrigation fb three irrigations at vegetative stage (30-35 DAS), flowering stage (40-45 DAS) and capsule development stage (60-65 DAS) which was found to be on par with pre-sowing irrigation fb two irrigations at vegetative stage (30-35 DAS) and flowering stage (40-45 DAS). Further, (T4) recorded significantly lower water use efficiency (5.26 kg ha-mm-1). Whereas the treatment under rainfed conditions (T5) recorded significantly higher water use efficiency (13.59 kg ha-mm-1) than all other treatments.
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    Influence of weather parameters on Aphis craccivora and Bean common mosaic virus disease incidence in Vigna unguiculata L. Walp
    (Triveni Enterprises, 2019-11) Manjunatha, N.; Nagaraju, N.; Rangaswamy, K.T.; Archana, S.; Parmar, S.S.; Prameela, H.A.; Puspha, R.N.
    Aim: Many crop modelling and climate simulation studies have reported variability in pest and pathogen distribution as well as their interaction with host. These prediction encourages to revisit the pest and pathogen epidemological and distribution studies in light of changing climate. In line with above assumption, the present field study was carried out to study the population dynamics of cowpea aphid (Aphis craccivora) and its influence on BCMV disease incidence. Methodology: In this field experiment, A. craccivora population and BCMV disease incidence data were collected in different standard meteorological weeks of 2013-2014 and 2014-2015. Impact of weather parameters on A. craccivora and BCMV disease incidence was statistically analyzed. Results: The significant change in A. craccivora population and BCMV disease incidence was documented during the study. The maximum aphid population was observed during rabi season and less was observed in kharif and summer season. Whereas, incidence of BCMV was recorded maximum in rabi season. Correlation analysis affirmed, minimum temperature (Tmin) and rainfall had negative impact on A. craccivora whereas weather parameters had non-significant impact on BCMV disease incidence. The regression models developed from the present study explained 41.4 % to 78.8 % and 18.5 % to 46.1% variability (R2) of aphid population and BCMV incidence, respectively. Interpretation: The weather parameters had more impact on A. craccivora population than BCMV disease incidence and merely presence of maximum number of A. craccivora was not a deciding factor for outbreak of virus disease incidence.
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    Nursing students' perceptions of resilience, social support, and coping strategies during the COVID-19 pandemic: a multi-center study
    (Medip Academy, 2023-12) Bidadi Veerabhadraiah, K.; Reddy, S. Y.; Poreddi, V.; Mynampati, S.; Annapally, S. R.; Manjunatha, N.; Naveen Kumar, C.; Math, S. B.
    Background: Resilience found to be an important factor in protecting the nursing students against the stress during coronavirus outbreak. Aim of the study was to evaluate the relationships between resilience and perceived social and organizational support and coping strategies among nursing students. Methods: This web-based survey carried out among nursing undergraduates (n=1017) across the country. Data was collected using self-reported questionnaires in May 2021. Results: Majority of the students had a normal level of resilience, perceived a high level of social and organizational support and used effective coping strategies. Also, the variables of resilience, social support, organization support and coping strategies were positively correlated (p<0.001). While ag e was positively correlated with resilience, younger (t=4.647, p<0.001) and females (t=-0.3620, p<0.001) perceived a higher level of social support than others. Conclusions: The results suggest that strengthening resilience and improving coping skills and social support may promote psychological wellbeing for nursing undergraduates during the coronavirus pandemic.