Effects of water deficit stress on physiological reaction in Fortuynia bungei Boiss

Tajamoliyan, Mahdiye; Irannezhad Parizi, Mohammad Hosein; Malekinezhad, Hosein; Rad, Mohammadhadi; Sodaiizadeh, Hamid

doi:10.22092/ijrfpbgr.2013.5709

Effects of water deficit stress on physiological reaction in Fortuynia bungei Boiss

Document Type : Research Paper

Authors

10.22092/ijrfpbgr.2013.5709

Abstract

Effective use of water resources should always be considered for optimum growth of plants. To determine different levels of water deficit stress effects on several physiologic characteristics of Fortuynia bungei a completely randomized design was conducted with three treatments and three replications, during 2011. Water stress treatments consisted of 100, 50 and 25% of field capacity. Results showed that increasing water deficit stress led to decreasing in water potential, specific leaf area and increasing in prolin (P<0.01). Maximum prolin (39.3 mg g^-1 fresh weight), minimum water potential (-33 bar) and minimum specific leaf area (17.224 cm g^-1) was observed on 25% of field capacity. The overall results of this study showed that the species is adaptable to dry conditions by using water stress tolerance mechanisms such as reduced water potential of leaves and increased levels of prolin accumulation. Fortuynia bungei can be considered as a suitable plant for increasing the capacity of desert areas, pastures and urban green space for better utilization of water resources.

Keywords