A5069714563- Rice Cultivation and Yield Improvement
- Plant responses to water stress
- Plant Stress Responses and Tolerance
- Agronomic Practices and Intercropping Systems
- GABA and Rice Research
- Agricultural Science and Fertilization
- Genetic Mapping and Diversity in Plants and Animals
- Agricultural Economics and Practices
- Crop Yield and Soil Fertility
- Plant Molecular Biology Research
- Plant nutrient uptake and metabolism
- Genetic and Environmental Crop Studies
- Food composition and properties
- Research in Cotton Cultivation
- Plant Parasitism and Resistance
- Genetics and Plant Breeding
- Plant responses to elevated CO2
- Plant Micronutrient Interactions and Effects
- Agriculture, Soil, Plant Science
- Coastal wetland ecosystem dynamics
- Air Quality and Health Impacts
- Photosynthetic Processes and Mechanisms
- Sunflower and Safflower Cultivation
- Wheat and Barley Genetics and Pathology
- Agricultural pest management studies
Central Rice Research Institute
2013-2023
Indian Institute of Rice Research
2020
ICAR - Central Island Agricultural Research Institute
2020
Central University of Odisha
2019
Indian Council of Agricultural Research
2018-2019
Coombe Women & Infants University Hospital
2012
Banaras Hindu University
2001
University of Calcutta
1982-1986
Submergence tolerance is an important trait where short term flash flooding damages rice. Tolerant landraces that withstand submergence for 1–2 weeks were identified. Due to the heterogeneity in flood-prone ecosystem many different types of traditional rice cultivars are being grown by farmers. The local adapted extremes water availability could be sources genetic variation used improve adaptability excess stress. Greater genotypic variability was observed plant height, elongation and...
The effects of submergence on chlorophyll (Chl) a fluorescence were compared in seven Oryza sativa (L.) cultivars, namely FR 13A, Khoda, Khadara, Kalaputia (tolerant), Sabita, and Hatipanjari (avoiding type), IR 42 (susceptible). Seedlings submerged for 4 d under complete darkness. Oxygen concentration flood water decreased with the period concomitant increase carbon dioxide. Submergence caused diminution amount total Chl. Genotypic differences observed Chl content survival percentage....
Salinity is one of the major constraints in rice production. To date, development salt-tolerant cultivar primarily focused on salt-exclusion strategies, which incur greater energy cost. The present study aimed to evaluate a balancing strategy ionic discrimination vis-à-vis tissue tolerance, could potentially minimize cost salt tolerance rice. Four genotypes, viz., FL478, IR29, Kamini, and AC847, were grown hydroponically subjected stress equivalent 12 dS m-1 at early vegetative stage....
Stagnant flooding (SF) is an important constraint which prolonges partial submergence damages of rice plants and reduces grain yield. Due to the heterogeneity in flood-prone ecosystem, many different types traditional varieties are being grown by farmers. The local landraces adapted extreme water availability could be sources new gene(s) would utilized improve adaptability SF with high main goal this study identify genetic resources tolerant based on morpho-physiological traits. A total 16...
Soil salinity is a major abiotic stress that limits rice productivity worldwide. The problem intense - particularly in areas with extremely dry and hot climatic conditions. Designing an effective phenotyping strategy requires thorough understanding of plant survival under stress. investigation was conducted using 12 cultivars differing tolerance. Among these cultivars, seedling on day 10 salt treatment (12dSm-1) above 85% during wet season 75% FL478, AC39416, Pokkali Kamini. Highly...
Plants experience multiple abiotic stresses during the same growing season. The implications of submergence with and without saline water on growth survival were investigated using four contrasting rice cultivars, FR13A (submergence-tolerant, salinity-susceptible), IR42 (susceptible to salinity submergence), Rashpanjor AC39416 (salinity-tolerant, submergence-susceptible). Though both showed sensitivity salinity, exhibited higher initial biomass as well maintained greater dry mass under...
In the recent time, Submergence1 (Sub1)QTL, responsible for imparting tolerance to flash flooding, has been introduced in many rice cultivars, but resilience of QTL stagnant flooding (SF) is not known. The response Sub1-introgression tested on physiology, molecular biology and yield two popular cultivars (Swarna Savitri) by comparison parental lines (SwarnaSub1 SavitriSub1) under SF. Compared control condition SF reduced grain tiller number increased plant height Sub1- introgression mostly...
An experiment was conducted on the three indica rice ( Oryza sativa L.) cultivars IR 42, CR 383‐10 and FR 13A, which are susceptible to submergence, submergence‐avoiding tolerant respectively. A deleterious effect of submergence noted as both above‐ground dry matter accumulation chlorophyll content decreased during subsequent re‐aeration. However, rate reduction lower in cultivar. The cultivar 13A maintained higher weight re‐aeration accumulated proline malondialdehyde contents than other...
Abstract Plant's response to fresh‐ and saline‐water flooding the resulting partial submergence, seems different due added complexities of element toxicity salinity. We identified a few rice genotypes which can tolerate combined stresses submergence salinity during saline water flooding. To gain mechanistic insights, we compared two genotypes: Varshadhan (freshwater‐flooding tolerant) Rashpanjor (both tolerant). found greater ethylene production increased “respiratory burst oxidase homolog”...