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Variability in Tolerance of 24 Chili Pepper (Capsicum annuum L.) Genotypes to Salinity Stress
Catur Herison, Hasanudin Hasanudin, Rustikawati Rustikawati, Aditya Lubis

Last modified: 2020-11-07

Abstract


Coastal area is still a huge potential resources for food crop production, despite its high salinity level and, consequently, less fertile.  Exploitation on these resources requires cultivars more adaptive to saline condition.  The objective of this study was to evaluate variability response of 24 chili pepper genotype to salinity stress so that they can be selected for the most tolerance genotypes. The selected genotypes will be of valuable source of genetic materials for breeding programs. The study was conducted in two consecutive steps. The former was an experiment to determine the salinity level appropriate to calculate the variability of tolerance.  The later was an assessment for variability in tolerance response of 24 chili pepper genotype to salinity. The results revealed that the salinity level of 7500 ppm NaCl was appropriate for salinity tolerance screening.  There was high variability in tolerance response of 24 genotypes. Most genotypes were categorized susceptible, but some of them were considered very tolerance. The most tolerant genotypes will be used as sources of gene(s) controlling tolerance to salinity stress.

Keywords


chili pepper, salinity tolerance, variability