Effect of Salt Stress on Germination Test and Scanning Electronic Microscope (SEM) Analysis of Tomato (Solanum lycopersicum L.) Seeds
DOI:
https://doi.org/10.5281/zenodo.15054136Keywords:
Germination, Salt doses, Scanning electronic microscope (SEM), Stress, Tomato genotypes, ToleranceAbstract
This study investigates the responses of various tomato genotypes to different salt doses, revealing significant variations in germination outcomes. Distinct differences were observed between salt-tolerant and salt-sensitive genotypes, wherein tolerant genotypes exhibited higher germination rates and shorter germination periods. Scanning electron microscope analysis identified elemental variations, including carbon (C), oxygen (O), calcium (Ca), silicon (Si), sodium (Na), phosphorus (P), sulfur (S), chlorine (Cl), potassium (K), and magnesium (Mg), contributing to the differing responses among genotypes. In salt-sensitive genotypes, an increase in salt doses correlated with delayed germination, decreased germination rates, and notable changes in seed coat cells, including increased shrinkage and reduced cell width and seed hair. Conversely, salt-tolerant genotypes displayed potassium (K) and magnesium (Mg) elements, further emphasizing their resilience to salt stress. This study underscores the importance of selecting salt-tolerant tomato genotypes in saline environments to mitigate germination losses compared to their sensitive counterparts. The findings provide valuable insights for enhancing salt tolerance in tomato plants, contributing to sustainable agricultural practices.
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