Vol. 12, Issue 6 (2023)

Author(s):
Madhavi Sonone, Arun Mane, Santosh Sawardekar and Ramesh Kunkerkar

Abstract:
Soil salinity is one of the major abiotic stress that has hampered global rice production. In such instances, the identification and improvement of salt-tolerant rice varieties is a prerequisite. Conventional phenotyping of rice still has equal importance in the modern mechanized era, and the standard evaluation system is one of them. Two rice genotypes from the Konkan region, Panvel-1 (salt-tolerant) and Karjat-4 (salt-sensitive) were grown under controlled conditions in coastal saline soil with an EC of 3 dS/m. Additional NaCl was added to achieve 6 and 9 dS/m. The aim of the study was to apply a standard evaluation system for the determination of salt injuries in rice at the reproductive stage. Simultaneously the survival percentage of the plant was also noted. The results revealed that the application of salt stress has a severer impact on the survival % of the plants and had the maximum salt injury score. Between the two genotypes, Panvel-1 was less affected and had the minimum salt injury score than Karjat-4. Through this investigation, it validated that the standard evaluation system is one of the important parameters that can be employed to identify salt tolerance levels in different genotypes.