Published Paper Details:

Abiotic stresses such drought, temperature, salinity, metal toxicity, and herbicides are common for plants and can all have an impact on crop yields. Salinity is one of the severe environmental restrictions that have a negative impact on crop loss and productivity globally among all abiotic stresses. In order to produce rice with acceptable characteristics, the landraces of rice are crucial for providing advantageous qualities. These are crucial genetic resources for plant breeding because they fall somewhere between wild relatives and cultivars. The necessity of producing and improving salt-tolerant crops, especially rice, has grown in importance in recent years. The response of the landraces Jondhala, Masad, and Wandar of Oryza sativa L. to NaCl at varying salinity levels (0, 50, 100, 150, 200, and 250 mM) was examined with a focus on early seedling stage and seed germination. High salinity reduced germination percentage of seeds and low salinity concentration showed higher germination percentage. The lower concentration increased biomass and seedling height as compare to high concentration in all three rice landraces. Results showed that 50mM and 100mM NaCl in Jondhala and Wandar enhanced the root growth with more roots developed at this salinity. 50mM, 150 mM NaCl is effective for root length in Masad. Abnormal seed germination was found in higher salt concentration due to inhibition of root growth. This study proposes that degree of tolerance of rice landraces to NaCl from morphological result. This study might be useful for further research of salinity effect on growth and physiological processes at advanced stage of these all landraces growth.