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Paper Information

Journal:   JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY   WINTER 2012 , Volume 6 , Number 4 (24); Page(s) 37 To 45.
 
Paper: 

EVALUATE THE PHYSIOLOGICAL RESPONSES OF DIFFERENT GENOTYPES OF COTTON (GOSSYPIUM HIRSUTUM L.) IN TWO SALINE AND NON-SALINE ENVIRONMENT

 
 
Author(s):  MIRGHASEMI S.J., REZAEE M.A., MOSAVIKHORSHIDI S.S.*
 
* DEPARTMENT OF BIOLOGY, ISLAMIC AZAD UNIVERSITY, GORGAN BRANCH, GORGAN, IRAN
 
Abstract: 

Cotton (Gossupiuym hirsutum L.) is one of the most important crops in the world. Different cultivars of this species show different responses to soil salinity. To investigate the effect of salinity on the physiological characteristics of different varieties of cotton an experiment was performed in a randomized block design with three replications in AqQala (Gorgan) and Karkande (Kordkoy) in crop year 2011. The treatments consisted of different varieties of cotton in 10 levels of Q28, 43200, Sherpan 539, Gukorva, Coker 439, Sepid, Seland, Superokra, Sahel and Opal and 2 levels of soil salinity with electrical conductivity of 2 (non-saline soil with EC=2) and 16 (saline soil with EC=16) ds/m and the composition traits such as anthocyanin, antioxidant activity and certain elements concentration, were measured under different salinities. Sampling was conducted in the vegetative growth of the last leaves of cotton plants at one stage. The results showed that in saline (16 ds/m) than non-saline environments (2 ds/m) concentration of sodium ions, calcium, magnesium and chlorine increased in all varieties. Also Ascorbate peroxidase activity increased in saline soils. The highest anthocyanin in the Seland variety and the proline content significantly increased with increase in salinity in Sahel, Sherpan 539, Coker 439 and opal varieties.

 
Keyword(s): ANTIOXIDANT ENZYMES, COTTON (GOSSYPIUM HIRSUTUM L.), SALINITY
 
References: 
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