World Journal of
Pharmaceutical and Life Sciences

EFFECT OF SALINITY STRESS ON GERMINATION AND GROWTH PARAMETERS OF RICE (ORYZA SATIVA L.)

Syaiful Bahri Hasibuan, Yenni Asbur*, Yayuk Purwaningrum, Murni Sari Rahayu and Nurhayati

ABSTRACT

Responses of eight varieties of Oryza sativa L. ('NERICA 1', 'NERICA 5', 'NERICA 12', 'NERICA 19', 'IR 29', 'IR 20', 'IWA 11', and 'POKKALI', tolerant checks salt) against four levels of salinity (0, 5, 10, and 15 ds m-1) were studied at germination and early growth stages. Germination was not recorded at 20 ds m-1 salt concentration in all cultivars. Salinity decreases FGP, SG, GE% and causes a decrease in shoot and root length and variety dry weight and the amount of reduction increases with increasing salinity stress. The rice varieties 'NERICA 12', 'IR 20', 'IWA 11' and 'NERICA 19' showed greater salt tolerance during germination (germinating at a salinity of 10 ds m-1). However, 'NERICA 1', 'IR 29', and 'IR 20' performed better based on reduced dry matter yield. The results suggest that 'NERICA 1', 'IR 29', and 'IR 20' might be used for further studies on the effects of salinity on the growth process and the physiological consequences in the later stages of growth. The physiological response of rice plants to salinity at various stages of development is essential for identifying salinity tolerance in cultivars.

[Full Text Article]   [Download Certificate]