Vol. 38 No. 4 (2024):
Articles

Evaluation of salinity tolerance of Yemeni chilli pepper genotypes during gemination by using different statistically models

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  • I. Al-Madhagi,
  • E. Arraf
I. Al-Madhagi
Department of Horticulture and Its Technologies, Faculty of Agriculture, Foods and Environment, Sana'a University, P.O. Box 1247, Sana'a, Yemen.
E. Arraf
Department of Horticulture and Its Technologies, Faculty of Agriculture, Foods and Environment, Sana'a University, P.O. Box 1247, Sana'a, Yemen.
DOI: https://doi.org/10.36253/ahsc-16693
Categories

Published 2025-03-10

Keywords

  • Chili pepper,
  • Germination,
  • Salinity,
  • Tolerance

How to Cite

Al-madhagi, I., & Arraf, E. (2025). Evaluation of salinity tolerance of Yemeni chilli pepper genotypes during gemination by using different statistically models . Advances in Horticultural Science, 38(4), 371–392. https://doi.org/10.36253/ahsc-16693

Copyright (c) 2024 Isam Al-madhagi

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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Abstract

Evaluating the genotypes of vegetables is a critical component in establishing effective plant breeding programs. In this study, nine genotypes of Yemeni Capsicum spp. were collected from various regions in Yemen to assess their germination capabilities under different salinity levels (0, 50, 100, 150, 200, and 250 mM). The experiment was conducted using a factorial completely randomized design (CRD) with three replicates. Results indicated that increasing salinity levels led to a gradual decline in germination percentage (GRP), mean germination rate (MGR), germination time (MGT), and seedling dry matter (DM%). Additionally, variations in the genotypes’ responses to salt stress were evaluated using four models: the slope of the regression line (b), the integrated evaluation approach (DV), Principal components, and the genotypes’ salinity susceptibility index (GSSI). All the classified of genotypes was different by analysis models. Based on the integrated value (DV), the genotypes were classified into four sensitivity categories: resistant (A, D, and G), moderately resistant (F and V2), sensitive (S and Z), and highly sensitive (H and V3) to salinity stress. The findings demonstrate that the slope of the regression line is a reliable indicator for assessing genotype sensitivity to salinity, aligning consistently with the integrated value model (DV). The insights gained from this research are expected to significantly inform breeding strategies aimed at developing salt-tolerant chilli pepper cultivars, which are essential for successful cultivation in challenging environmental conditions.

 

 

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