تلخیص
Salinity and drought are two important environmental problems responsible for the reduction of growth and yield of many
plant species. The present study was conducted to evaluate the tolerance potential of A. nilotica and A. ampliceps against
salinity and water shortage in the pots. Different salinity levels (control, 10, 20 and 30 dS m-1
) were developed in the pots by
adding calculated amount of NaCl. Three months old nursery plants of both species were transplanted in these pots. After
two weeks of transplantation, water stress was continuously applied till the end of the experiment. After four months, data
regarding shoot and root growth, nodulation, chlorophyll and relative water contents were determined following standard
methods. Ionic composition (Na+
, K+
and Cl-
) of shoot and root was determined by wet digestion. The results demonstrated
that A. ampliceps was more tolerant to salinity due to better ionic composition and physiological attributes but when salinity
was combined with water stress; its tolerance potential was decreased. On the other hand, A. nilotica performed better under
water stress and when salinity was combined with water stress