Paper Information

Journal:   IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH   2004 , Volume 11 , Number 4; Page(s) 425 To 447.
 
Paper: 

EFFECT OF SOIL SALT TYPES ON THREE HALOPHYTES SPECIES

 
 
Author(s):  MIRDAVOUDI H.R., ZAHEDIPOUR H.A.
 
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Abstract: 

In this research the effect of salt type and salinity stress on primary establishment and growth of resistant plant such as Atriplex canescens, Halimion vrrucifera and camphorosma monspeliacum were investigated in seedling condition. The split- split plot experimental design with four replication were applied for this investigation. Salt type stress was selected based on tow salt types, including Na2So4and NaCl. Salinity stress was selected in the form of six salinity treatments, including 5 (authentic), 15, 30.45, 60 and 75 ds/m. After a period of growth, dry arial and underground parts of plant were measured. The results show that salinity and salt type stress will severely decrease dry arial and underground parts of plants. The effect of NaCl salt treatment and 75 ds/m salinity was observed in decreasing dry matter production more than the other treatments. All three species had higher yield on Na2So4 type than NaCl. In fact the negative effects of NaCl salt type are more than the sulphat salt type. The interaction of species types and salt types were significantly different at the %1 level. The best model that was recognized for plant growth response to salt and salinity stress, with regards to r2 and its significance at %5 level is polynomial function.

 
Keyword(s): SOIL SALINITY, SALT TYPE, ATRIPLEX CANESCENS, CAMPHOROSMA MONSPELIACUM, HALIMION VERRUCIFERA, ARAK
 
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