MINERAL CONTENT IN THE LEAVES OF SWEET PEPPER PLANT IN RESPONSE TO CERTAIN BIO-STIMULANTS UNDER SALT STRESS CONDITIONS | ||||
| Journal of Plant Production | ||||
| Article 10, Volume 5, Issue 4, April 2014, Page 663-684 PDF (924.82 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2014.53877 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| A. A. Arafa; M. A. Khafagy; A. M. Abo - El Kheer; R. A. Fouda; M. F. El-Banna | ||||
| Dept. Agric. Bot., Fac. of Agric., Mansoura Univ., Egypt | ||||
| Abstract | ||||
| N, P, K+ and Mg2+ concentration as well as K+/Na+ ratio in sweet pepper root, shoot, and fruits were significantly increased at the low salinity level NaCl+CaCl2 (2000 mg/L) followed by CaCl2. In addition, increasing salinity levels led to a decrease in this respect. Meanwhile, CaCl2 or NaCl+CaCl2 increased significantly the Ca2+ concentration with increasing salinity levels from 2000 to 4000 mg/L as compared to control. On the other hand, calcium concentration was decreased significantly with increasing NaCl salinity level to 4000 mg/L. With increasing salinity levels, both Na+ and Cl- concentration were increased as compared with control. The highest value of Na+ was obtained by NaCl followed by NaCl+CaCl2. In addition, pre-soaking seeds in SA, AsA, α-tocopherol and yeast extract at both levels significantly increased N, P, K+, Ca2+ and Mg2+ concentrations as well as K+/Na+ ratio whereas decreased Na+ and Cl- under non-saline and saline conditions. In addition, AsA at 50 mg/L and SA at 75 mg/L were more effective as compared with the other treatments. | ||||
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