Paper Information

Journal:   IRANIAN JOURNAL OF RANGELANDS AND FORESTS PLANT BREEDING AND GENETIC RESEARCH   SPRING 2006 , Volume 14 , Number 1 (23); Page(s) 8 To 14.
 
Paper: 

EFFECTS OF NEGATIVE OSMOTIC POTENTIAL ON GERMINATION AND SOME CHARACTERS OF SPECIES OF CLOVER GENUS (TRIFOLIUM)

 
 
Author(s):  MEMAR SAEID*, NASIRZADEH A.A.R.
 
* 
 
Abstract: 

In order to determine the response of 3 annual clover species (6 variety) against drought stress, an experimentwith3 replications was conducted in randomized completely design as factorial in 2004.The treatments included, two species and four sub species of clover and four levels of osmotic potential (0, - 0.3, -0.7 and-1.1 Mpa) that were made by poly ethylene glycol (PEG 6000) solution. The measured characteristics were germination percentage, length and dry weight seedling, radicle and hypocotyl dry weight and radicle to hypocotyls length ratio. Species showed significant differences (P<0.01) for all the characteristics at germination under drought stress. In this research, Varamin species (T. alexandrinum var. carl1lel and T. resupinatum (Arak haft chin) in the most measured factors were more tolerant than the others. T. resupinatum (Kordestan do chin) and (Abadeh Sorrian) were introduced as semi-tolerant species. T. subterraneum var. clark) and T. resupinatum (Kazeroon baladeh) were the most sensitive to drought stress, because they had the lowest value in measured factors.

 
Keyword(s): CLOVER SPECIES, OSMOTIC POTENTIAL, PEG - DROUGHT STRESS AND GERMINATION
 
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