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Kalarani, M. K.
- Effective way of Transfer of Technology to Boost the Groundnut Yield Under Rainfed Condition Through Frontline Demonstration in Salem, Tamil Nadu
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Authors
Affiliations
1 Tapioca and Castor Research Station, Yethapur, Salem (T.N.), IN
2 Krishi Vigyan Kendra, Santhiyur, Salem (T.N.), IN
3 Tapioca and Castor Research Station, Yethapur, Salem (T.N.), IN
4 Department of Agricultural Extension, Tamil Nadu Agricultural University, Coimatore (T.N.), IN
1 Tapioca and Castor Research Station, Yethapur, Salem (T.N.), IN
2 Krishi Vigyan Kendra, Santhiyur, Salem (T.N.), IN
3 Tapioca and Castor Research Station, Yethapur, Salem (T.N.), IN
4 Department of Agricultural Extension, Tamil Nadu Agricultural University, Coimatore (T.N.), IN
Source
Agriculture Update, Vol 5, No 1-2 (2010), Pagination: 32-35Abstract
Groundnut is a major oilseed crop grown under rainfed condition in Salem district. The majority of the farmers could not able to get high yield. Even sometime severe yield loss and cent per cent failure of crop occurred in some areas due to occurrence of severe drought and poor awareness on drought management technologies. Considering the importance of groundnut and other constraints, Krishi Vigyan Kendra, Salem facilitated front line demonstration (FLD ) funded by ICAR (TOT) New Delhi with performing improved technologies in different villages of Salem district during 1995-2007. 372 front line demonstrations were conducted in 90 hectares. Farmers were selected randomly and demonstration done in their field itself. Critical inputs were distributed to the farmers. In case of local check plots existing practices being used by farmers were followed. During the period under study, it was observed that the average yield of demonstration was significantly higher (1748kg/ha) than local check plots (1430kg/ha). However, fluctuations were observed mainly an account of variation in rainfall in terms of percentage yield improvement in demonstration was recorded from 14.7-29.5 % over local check. In field days, FLD farmers well explained the drought management practices followed for groundnut and experiences also shared among the farmers. Groundnut yield potential can be increased to a great extent by conducting effective front line demonstrations with proven technologies. The technologies suitable for the Tamil Nadu similar to Salem district of Tamil Nadu should be evolved and brought to the access of farmers transfer centres like KVKs.Keywords
Groundnut, Drought, FLD, Field Days, Yield.
- Transformation of Elite Rice Cultivars ASD16 And IR64 with cry2Ac Gene for Resistance to Rice Lepidopteran Pests
Abstract Views :207 |
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Authors
Affiliations
1 Topica and Castor Research Station, Yethpur, P.G. Palayam, Salem (T.N.), IN
1 Topica and Castor Research Station, Yethpur, P.G. Palayam, Salem (T.N.), IN
Source
Asian Journal of Bio Science, Vol 5, No 1 (2010), Pagination: 19-28Abstract
With the view to imparting resistance to major lepidopteran pests of rice, attempts were made to transform elite indica genotype ASD16 and IR64 with cry2Ac gene. Agrobacterium and particle bombardment-mediated transformation were carried out using the vector pS2AcP2 harbouring cry2Ac gene, the selectable marker gene, hph and the scorable marker gene, gusA. In Agrobacterium-mediated transformation experiment with mature seed derived calli, two lines in ASD16 were regenerated with a regeneration frequency of 1.1 per cent. In particle bombardment-mediated transformation experiments with immature embryos, 15 lines in IR64 were regenerated with a regeneration frequency of six per cent. Presence of transgenes in these lines could not be demonstrated through PCR.Keywords
Rice, Agrobacterium tumifaciens, Bacillus thuringiensis, Stemborer, Leaffolder, Cry2ac Gene, Biolistic Gun.- Effect of Downwash Airflow Distribution of Multi-Rotor Unmanned Aerial Vehicle on Spray Droplet Deposition Characteristics in Rice Crop
Abstract Views :152 |
PDF Views:81
Authors
D. Yallappa
1,
R. Kavitha
1,
A. Surendrakumar
1,
B. Suthakar
1,
A. P. Mohan Kumar
1,
M. K. Kalarani
2,
Balaji Kannan
3
Affiliations
1 Department of Farm Machinery and Power Engineering, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
2 Directorate of Crop Management, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
3 Department of Physical Science and Information Technology, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
1 Department of Farm Machinery and Power Engineering, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
2 Directorate of Crop Management, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
3 Department of Physical Science and Information Technology, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
Source
Current Science, Vol 125, No 2 (2023), Pagination: 172-182Abstract
The UAV downwash airflow pattern generated by rotor propellers is one of the significant factors influencing the characteristics of spray droplet deposition distribution. UAV sprayer and battery operated sprayer were used to study the effect of downwash airflow distribution of UAV on spray droplet deposition characteristics in a paddy field. The UAV sprayer was operated with optimized operational parameters and spray droplet characteristics, viz. spray deposition rate (µl cm–2), spray droplet size (µm), spray deposition density (No’s cm–2) and spray deposition uniformity (%) were analysed using Deposit Scan software. The UAV sprayer showed better results in spray droplet deposition rate, spray coverage per unit area and spray droplet deposition densities than the conventional battery-operated manual sprayer. Additionally, it was found that the UAV sprayer increased the chemical’s penetration into crop leaves, leading to higher chemical deposition on both the upper and lower layers of rice leaves.Keywords
Chemical Spray Deposition, Deposition Uniformity, Downwash Air, Droplet Size, Manual Spray, Water Sensitive Paper.Full Text
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