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Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCE (UNIVERSITY OF TABRIZ)   2004 , Volume 14 , Number 3; Page(s) 11 To 26.
 
Paper: 

THE EFFECTS OF NACI SALINITY ON SOME PHYSIOLOGIC TRAITS OF TWO IRANIAN ONION CULTIVARS

 
 
Author(s):  KBODADADI M., OMID BEYGI R.
 
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Abstract: 
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A pot experiment was conducted for the study of the effects of NaCl salinity on the accumulation of some mineral and organic matters in two onion (Allium cepa L.) cultivars. A split plot design was arranged with three replications. Two onion cultivars (Ghermez Rey and Tarom Zanjan) were asseigned to main plots and five salinity levels (0, 25, 50, 75 and 100 mw. NaCl) to sub-plots. Plants were raised in the Hoagland nutrition solution. Total leaf chlorophyll, proline, total soluble sugars and Na, K, Ca, Cl, P and S were measured at the final leaf growth stage, These minerals were also measured at the final bulb growth stage. Results showed that total chlorophyll significantly decreased with increasing salinity levels, while proline increased specially in Ghermez Rey cv. Ghermez Rey seems to be more tolerant to salinity than Tarom Zanjan. In addition, the significant increase of Na and Cl accumulation in the leaf and bulb particularly at high salinity levels led to nutrient deficiency and ionic toxicity.

 
Keyword(s): CHLOROPHYLL, GHERMEZ REY, NUTRIENTS, ONION, PROLINE, SALINITY, TAROM ZANJAN,TOLERANCE
 
References: 
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