EFFECT OF NaCl AND CaCl2 SALTS ON SEED GERMINATION AND SEEDLING GROWTH OF Capsicum annuum L. | ||||
| Journal of Plant Production | ||||
| Article 8, Volume 1, Issue 7, July 2010, Page 913-930 PDF (733.55 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2010.86553 | ||||
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| Authors | ||||
| A. A. Arafa; M. A. Khafagy; A. M. Abo El-Kheer; R. A. Fouda; M. F. El-Banna | ||||
| Dept. of Agric. Botany, Fac. of Agric., Mansoura University, Egypt. | ||||
| Abstract | ||||
| To compare the effect of NaCl, CaCl2 and their combinations on germination and early seedling growth stages of Capsicum annuum L., two-separated experiments were laid out at Laboratory of the Agric. Botany Dept., Fac. of Agric., Mansoura Univ., Egypt, during the growing season 2008. Results indicated that significant increases were recorded in percentage of germination( GP), germination performance index (GPI), as well as seedling fresh and dry weights, seedling length, water content, catalase (CAT) activity and photosynthetic pigments concentrations (chlorophyll a, b and total chlorophylls as well as carotenoids) under the low level (2000 ppm) of NaCl or CaCl2 and their combination(1:1). Increasing salt concentration in nutrient cooper solution caused significant decrease in all of these parameters. The great reduction occurred under high salinity level of NaCl (4000 ppm). However, seedling water content (WC) was not-significantly decreased. In addition, CaCl2 at 4000 ppm increased significantly the total carotenoids as compared with NaCl. Meanwhile, peroxidase (POD) activity increased significantly with increasing salinity levels from 2000 to 4000 ppm of both applied salinity types. Moreover, POD activity under NaCl levels showed a marked increase followed by NaCl+ CaCl2 (1:1) and CaCl2 at 4000 ppm.. | ||||
| Keywords | ||||
| Capsicum annuum L; salinity; germination; seedling growth; catalase; peroxidase; photosynthetic pigments | ||||
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