Abstract
Soil salinity is a serious problem for agricultural productivity throughout the world. The Crops grown on saline soils suffer from ions toxicities, nutritional disorders, osmotic stress, and ultimately leads to the reduced yield. Rice is an essential food crop that is consumed by more than half of the world population but rice is at risk of salt stress due to increasing salinity. Understanding the causes and related concerns of salinity on rice yield and growth will improve our ability to compensate for its adverse effects through short or long-term adaptation approaches. In the following study, two experiments were performed. The genotypes were screened at germination and seedling stages in the first experiment to select 5 NaCl responsive genotypes including 2 NaCl tolerant, 2 moderately NaCl tolerant, and 1 NaCl susceptible. These genotypes were selected based on the gain in radical length (RaL), plumule length (PlL), radical fresh weight (RaFW), plumule fresh weight (PlFW), radical dry weight (RaDW), plumule dry weight (PlDW), at germination stage and, at seedling stage root length (RL), dry root weight (DRW), fresh root weight (FRW), shoot length (SL), fresh shoot weight (FSW) and dry shoot weight (DSW), were determined from growing seedlings. In the second experiment, the selected genotypes were hybridized with two modern cultivars following the line into tester mating design. The F1 hybrids were evaluated based on the above-mentioned salinity tolerance traits at the germination and seedling stages. The obtained data were used to determine the better parent heterosis for the salinity tolerance traits.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.