ICAR-NRRI-Regional Rainfed Lowland Rice Research Station (RRLRRS) Gerua, Assam – APSC Assam Geography Notes & Study Materials
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- Rice contributes 95% of the total food grain production in Assam and is cultivated in three main seasons, viz. Ahu (February/March to June/July month), Sali (June/July to November/December month) and Boro (November/December to April/May month).
- Of these three seasons, Sali occupies more area, which is flood prone. More than 23 districts suffers from flood chronically, which affects the productivity of rice severely and limit the total production.
- To develop suitable high yielding varieties and production technology, specially for flood prone lowlands of Assam, Assam govt had requested the Indian Council of Agricultural Research (ICAR), New Delhi to consider establishing a sub-station of National Rice Research Institute (NRRI) in Assam to assist the state’s efforts on rice research.
- The Regional Rain-fed Lowland Rice Research Station (RRLRRS) is a sub-station under ICAR-NRRI, established on September 15, 1997 at Gerua in the Hajo circle of the Kamrup district of Assam, upon request of the Assma Govt to consider establishing a sub-station of National Rice Research Institute (NRRI) in the state to assist it’s efforts on rice research, as NRRI plays a pivotal role in rice research of the country.
Main mandates of the ICAR-RRLRRS are
- To conduct basic, strategic, applied and adaptive research on crop improvement, production and protection for increasing and stabilizing rice productivity in rainfed lowland ecosystem.
- To explore, evaluate, conserve and exchange rice germplasm.
- To develop high yielding and input responsive rice varieties resistant/tolerant to different biotic and abiotic stresses under rainfed lowland ecosystem.
- To generate appropriate agronomic and protection technologies for increasing and sustaining the productivity of rice-based production systems under rainfed lowland ecosystem.
- To import training to the farmers, field functionaries, extension specialists and research workers on improved rice production cropping and farming systems.
Trust Area of Research
- Strengthening the breeding strategy to evolve suitable Sali varieties with tolerant to flood.
- Development of short duration varieties with blast resistance and cold tolerance for Boro season.
- Development of flood resistant rice varieties for lowland, semi-deep and deep water conditions.
- Development of appropriate integrated insect pest and disease management strategies.
Salient Achievements
- Released rice variety ‘Chandrama’ as Boro and Sali for Assam.
- Released aromatic high yielding rice variety ‘CR Dhan 909’ as Sali crop for Assam, Bihar, Maharashtra and UP for irrigated and rainfed lowland ecology.
- Rice varieties ‘Naveen’ have been identified suitable as pre-flood Ahu crop and ‘Abhishek’ as post-flood Sali rice crop.
- Continual maintenance of over 830 Eastern Indian rice germplasm.
- Use of pheromone traps @ 20/ha recorded the lowest incidence of dead heart (3.45%) and white ear head (2.01%).
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