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Paper Information

Journal:   IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE)   2007 , Volume 38-1 , Number 2 (AGRONOMY AND CROP BIOTECHNOLOGY); Page(s) 347 To 356.
 
Paper: 

A STUDY OF IN-VITRO GENETIC DIVERSITY AND PHENOTYPIC CORRELATIONS BETWEEN MICROTUBERIZATION CHARACTERS UNDER SALINE AND NON-SALINE CONDITIONS SOME OF POTATO CULTIVARS

 
 
Author(s):  SALJOUGHIANPOUR M., OMIDI MANSOUR*, MAJIDI HERAVAN E., DAVOUDI D., AHMADIAN TEHRANI P.
 
* UNIVERSITY COLLEGE OF AGRICULTURE AND NATURAL RESOURCES, UNIVERSITY OF TEHRAN
 
Abstract: 

The effects of salinity (NaCl) in-vitro on microtuberization and investigated genetic diversity under saline and no saline conditions in potato, twelve cultivars (clones) of potato named Rangerrusset, AGB-69-1, MEX-32, Maine-28, Loman, Araucana INTA, Surena INTA, American-INTA, Aracy, FLS-5, Agria and Marphona, were planted in the greenhouse. Young shoots were cut and transferred to Tissue Culture Laboratory of Agricultural Biotechnology Research Institute. Apical and axillary meristems were cultivated on MS medium and samples were subcultured every four weeks on the same medium for plantlet production. Plantlets were then propagated through single nodal culture. To study the effects of salinity on microtuberization, they were cultivated on MS media with different concentrations of NaCl including 0, 25, 50, 75 and 100 m mol l- 1. Microtuberization response on different saline media was also different and indicated that all the studied characters, except the number of microtubers and the mean minimum microtuber diameter, had significant difference at P<0.01 for cultivars, salinity levels as well as interaction effects. Genetic diversity on the basis microtuberization using analysis of cluster among potato cultivars, and phenotypic correlations among characters under saline and non-saline conditions were also studied. This clustering indicated that there were differences among all cultivars under saline and non-saline conditions. Under non-saline conditions, commercial cultivars (Ranger-russet, Agria and Marphona) performed better than wild-type cultivars and ranked higher, whereas under saline conditions the commercial cultivars performed worse and were ranked 10werPhenotypic correlations among characters indicate that some associated factors correlating with each other contribute in occurring these characters.

 
Keyword(s): PATATO, TISSUE CULTURE, MICROTUBERIZATION, SALINITY TOLERANCE, GENETIC DIVERSITY
 
References: 
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