ISHS Acta Horticulturae 511: XXV International Horticultural Congress, Part 1: Culture Techniques with Special Emphasis on Environmental Implications - Nutrient Management
EFFECTS OF NaCl SALINITY ON GROWTH AND YIELD OF TWO PEPPER CULTIVARS |
| Authors: | K.S. Chartzoulakis, G. Klapaki |
| Keywords: | Leaf area, dry weight, yield, ion content, salt tolerance, Capsicum annum L. |
| DOI: | 10.17660/ActaHortic.2000.511.16 |
| Abstract:
The salt tolerance of two greenhouse bell-pepper hybrids (Capsicum annum, L., ‘Sonar’ and ‘Lamuyo’) were studied. Plants were grown in 8.5 l pots filled with sand-perlite mixture (1:3 v/v) and irrigated with half strength Hoagland solution containing O, 10, 25, 50, 100 and 150 mM/l of NaCl. Plant growth parameters such as plant height, total leaf area, shoot and root dry weight were significantly (P=0.05) reduced at salinities higher than 25 mM NaCl in both cultivars. Roots had the highest Na+ concentration, which increased with increasing salinity, while Cl- in leaves was much higher than Na+. Potassium uptake was not affected by salinity increase. Total yield in both cultivars was significantly reduced at salinities higher than 10 mM NaCl, the reduction being 95 % at 150 mM NaCl. Both, fruit number per plant and fruit size were reduced by the salinity. | |
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