Publications by authors named "Rishiraj Raghuvanshi"
Rice is a major cereal crop, negatively impacted by soil-salinity, both in terms of plant growth as well as productivity. Salinity tolerant rice varieties have been developed using conventional breeding approaches, however, there has been limited success which is primarily due to the complexity of the trait, low yield, variable salt stress response and availability of genetic resources. Furthermore, the narrow genetic base is a hindrance for further improvement of the rice varieties.
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- Arsenic and cadmium are toxic heavy metals that affect rice growth and productivity by disrupting nutrient balance in plants.
- In a study comparing two rice varieties, PB-1 showed more sensitivity in root biomass to these metals, while both varieties had similar shoot responses under stress.
- The research identified key nutrient deficiencies caused by arsenic and cadmium and proposed a model to explain how these deficiencies impact gene expression, highlighting the potential for nitrogen supplementation to improve growth under arsenic stress.
The present study analysed time (0.5 h to 24 h) and tissue [roots, old leaves (OL) and young leaves (YL)] dependent nature of arsenic (As) accumulation and ensuing responses in two contrasting varieties of rice (Oryza sativa L.); Pooja (tolerant) and CO-50 (moderately sensitive).
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