Salinity Stress on Mineral Elements in Seven Sesame Varieties

By : G. Kanagaraj, R. Desingh

Page No: 249-254

Abstract:
Salinity is one of the environmental limiting factors in agricultural production for the aim of investigating the effects of salt stress on some physiological traits in seven sesame (Sesamum indicum L.) varieties including PAIYUR–1, SVPR–1, TMV–3, TMV–4, TMV–5, VIR–1 and VIR–2. Young and fully matured leaves were taken from control and salinity treated plants on 15th Days After Treatment (DAT), 30th (DAT) and 45th (DAT) for all the experiments in different salinity (NaCl) concentrations of control, 40mM, 80mM, 120Mm. During the experiments the minerals elemental analysis of the leaves content of were measured. On 45th DAT, significantly higher enhancement of various minerals elements, abscisic acid and protein content was observed in TMV-3 with 120mM salinity by relative to control plants while lower enhancement was noticed in PAIYUR-1 with 120mM salinity by compared to control plants. Moderate enhancement of various physiochemical parameters was monitored in the variety VIR-2, TMV-3 was closely followed by TMV-4, VIR-1, SVPR-1 and TMV-5 with 120mM salinity on 45th DAT compared to control plants. Our results suggest that better high percentage of maintained higher content of mineral elements, abscisic acid and protein content and lower accumulation of sodium and chloride in the leaves in TMV-3 indicates its adaptability to salinity stress.

Authors:
G. Kanagaraj : Assistant Professor, Department of Botany, Government Arts college for men, Krishnagiri- 635 001,Tamilnadu, India.
R. Desingh : Assistant Professor, Department of Botany, Annamalai University, Annamalai Nagar-608 002, Tamil Nadu, India

DOI: https://doi.org/10.32381/JPSR.2020.36.1-2.32