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Journals
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Sridhar, V.
- Climex Simulated Predictions of Oriental Fruit Fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) Geographical Distribution under Climate Change Situations in India
Abstract Views :266 |
PDF Views:98
Authors
Affiliations
1 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Bengaluru 560 089, IN
2 National Bureau of Agriculturally Important Insects, Bellary Road, Bengaluru 560 024, IN
1 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Bengaluru 560 089, IN
2 National Bureau of Agriculturally Important Insects, Bellary Road, Bengaluru 560 024, IN
Source
Current Science, Vol 106, No 12 (2014), Pagination: 1702-1710Abstract
climate change on future potential distribution of Oriental fruit fly (OFF), Bactrocera dorsalis (Hendel), a polyphagous pest on a wide variety of fruit crops in India. Prediction of the potential distribution of OFF was done for different time-frames (2030, 2050, 2070 and 2090) under the A1B climate change scenario (CSIRO-Mk3.0, a global climate model) using CLIMEX software. The model predicted an overall gradual decrease in terms of area suitability for OFF in India by 2090 due to increase in various stress factors to the pest. In temperate regions of the north and northeastern parts, incidence of the pest may increase due to rise in temperature coupled with decrease in cold stress. In North India, the model predicts the regions of Jammu&Kashmir, Himachal Pradesh, Uttarakhand, Haryana and Punjab to be more climatically suitable for OFF by 2030 and there is an expected steady increase in suitability by 2050, 2070 and 2090. The CSIRO model for North East indicated that by 2090, Assam, Arunachal Pradesh and Manipur would become highly suitable for the pest. The projected range expansion in terms of area suitability was recorded up to 100 km in temperate regions. Central and western India are projected to become progressively less suitable by 2030, 2050 and totally unsuitable by 2090. In South India, there was a slight reduction in climatic suitability for OFF in terms of ecoclimatic index over timeframes 2030, 2050, 2070, 2090 as highly suitable, optimal, suitable and marginally suitable respectively. Regression analysis was carried out using growth index obtained from CLIMEX and pest trap counts. Additionally, field level validation of the model was carried out for selected locations.Keywords
Bactrocera Dorsalis, Climate Change, Geographical Distribution, Oriental Fruit Fly.Full Text
- Basic Research to Herald a New Era in Pest Management Science
Abstract Views :250 |
PDF Views:83
Authors
Affiliations
1 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Bengaluru 560 089, IN
1 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Bengaluru 560 089, IN
Source
Current Science, Vol 108, No 11 (2015), Pagination: 1978-1980Abstract
No Abstract.Full Text
- Perspectives and Challenges of Protection of Plant Varieties and Farmers' Rights Act in Floriculture
Abstract Views :237 |
PDF Views:83
Authors
Tejaswini
1,
T. Manjunatha Rao
1,
Meenakshi Srinivas
1,
Sujatha Nair
1,
M. V. Dhanajaya
1,
Rajiv Kumar
1,
S. Sriram
1,
V. Sridhar
1
Affiliations
1 Indian Institute of Horticultural Research, Bangalore 560 089, IN
1 Indian Institute of Horticultural Research, Bangalore 560 089, IN
Source
Current Science, Vol 107, No 10 (2014), Pagination: 1638-1639Abstract
No Abstract.Full Text
- Insecticide Resistance Management: Reflections and Way forward
Abstract Views :252 |
PDF Views:78
Authors
Affiliations
1 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Bangalore 560 089, IN
1 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Bangalore 560 089, IN
Source
Current Science, Vol 107, No 10 (2014), Pagination: 1640-1642Abstract
No Abstract.Full Text
- Delineation of Trap and Subtrappean Mesozoic Sediments in Saurashtra Peninsula, India
Abstract Views :375 |
PDF Views:87
Authors
Affiliations
1 No. 19-104/4, Kalyanapuri, Uppal, Hyderabad 500 039, IN
2 CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad 500 007, IN
1 No. 19-104/4, Kalyanapuri, Uppal, Hyderabad 500 039, IN
2 CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad 500 007, IN
Source
Current Science, Vol 110, No 9 (2016), Pagination: 1844-1851Abstract
Mapping of sediments beneath volcanic Traps is a highly challenging task. Here we report on the analysis of wide-angle seismic data from Trap-covered Saurashtra peninsula to address this problem. Traveltime modelling of mainly seismic refraction and some reflection phases yields basement configuration, trap and subtrappean sediment thicknesses along the Jodia-Ansador (NW-SE) profile in Saurashtra peninsula. Travel-time skip and amplitude decay in seismic refraction data indicate the presence of low-velocity sediments beneath the Traps. The result reveals two layers with Deccan Traps (4.85-5.0 km s-1) followed by Mesozoic sediments above the basement (5.8-6.1 km s-1). Using the lower bound velocity (3.2 km s-1), sediment thickness varies between 800 and 1500 m. Based on upper bound velocity (4.3 km s-1), we find both the sediment thickness and basement depth increase by 600-700 m. The thickness of sediments is more in the northwest and decreases gradually in the southeast, suggesting that the northwestern part of the profile is an important zone for hydrocarbon exploration in the Saurashtra peninsula. With the lower bound velocity of Mesozoics, we find that the basement (5.8-6.1 km s-1) is deep (~2100 m) in the northwest and shallows up near Atkot to ~1.0 km depth, and then deepens further southeast, showing the basement upwarped. The overall velocity and boundary uncertainties are of the order of ±0.15 km s-1 and ± 0.15 km respectively.Keywords
Seismic Refraction, Sediment Thickness, Travel-Time Inversion, Volcanic Traps.Full Text
References
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- Murty, A. S. N., Sain, K. and Rajendra Prasad, B., Velocity structure of the West-Bengal sedimentary basin, India along the Palashi– Kandi profile using travel time inversion of wide-angle seismic data and gravity modelling-an update. PAGEOPH, 2008, 165, 1733–1750.
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- Management of Phytophthora–A deadly Plant Pathogen
Abstract Views :231 |
PDF Views:82
Authors
Affiliations
1 ICAR-Central Plantation Crops Research Institute, Kasaragod 571 124, IN
2 ICAR-Indian Institute of Horticultural Research, Bengaluru 560 089, IN
1 ICAR-Central Plantation Crops Research Institute, Kasaragod 571 124, IN
2 ICAR-Indian Institute of Horticultural Research, Bengaluru 560 089, IN
Source
Current Science, Vol 110, No 12 (2016), Pagination: 2213-2215Abstract
Stramenopile pathogens of the genus Phytophthora cause devastating diseases on a wide range of agricultural and horticultural crops, natural vegetation and forestry worldwide. There are over 140 species in the genus and many have wide host range.Full Text