iran is widely drought prone, considering its semi-arid climate. eleven wheat cultivars differing in yield potential and drought resistance were employed to determine the possible relationship among grain filling rate and duration, stem reserves remobilization and grain yield under either irrigated (ir) or non-irrigated (nir) conditions at gerizeh research station in sanandaj for a duration of ...

investigating the role of drought stress conditions on physiological characteristics of plant may provide means to understand basic drought resistance. differences in leaf emergence rate, leaf relative water content (rwc), membrane stability index (msi), leaf mass area (lma), net photosynthesis (anet), stomatal conductance (gs), transpiration rate (e), intercellular co2 concentration (ci), ...

Objectives: Choice theory is rooted in psychological concepts like self-concept, successful identity, and quality of the world. This theory could be useful for people seeking for hope and a better life. The purpose of this research was to investigate the effectiveness of group training of choice theory on life quality and hope in blind people.  Methods: The statistical population of this ...

This study was designed to assess the frequency of exclusive breastfeeding in two health centers of Shahid Beheshti University of Medical sciences in Khak Sefid, Tehran, Iran. A total of 175 mothers, referred for the third dose of their infants' DPT vaccination program participated in the study by completing a questionnaire regarding characteristics of their pregnancy, delivery and exclusive br...

in vitro pollen germination and also pollen tube growth dynamics in different pollination treatments under controlled temperature, humidity and photoperiodicity were studied regarding four cultivars (‘shastomi - e - do’, ‘ebrahim - e - kalajah’, ‘sefid - e - rezaeeieh’ and ‘razi’) under self and under cross-pollination along with three superior genotypes (‘269’, ‘416’ and ‘464’) of apricot. fol...

an orchard experiment was conducted at gonabad pistachio production station., khorasan, iran (1998-2003). in some pistachio trees, especially in cv. owhadi, leaf marginal chlorosis was already observed. then, gradual drying of leaves extended to the leaves' centers up to midsummer. with respect to salinity problems, some researches were done. two orchards of pistachio known as no.6 and no....

The 1990 Rudbar earthquake (Mw 7.3) broke along three right-stepping segments of the left-lateral fault, in western Alborz mountains (Iran), producing ?80 km surface rupture. Previously reported horizontal (?60 cm) field offsets were surprisingly low, and vertical (?95 unexpected, given relatively large moment release, shallow source depth, fault geometry, rake. We characterize displacement fro...

in this research, the effect of different concentrations of chitosan (with low molecular weight) on in vitro proliferation of grape cultivar, ’bidaneh ghermez‘, was evaluated. 30 days after establishment, elongated shoots were cultured on the half strength murashige and skoog medium supplemented with 0.5 mg/l bap, 0.1 mg/l iba and different chitosan concentrations (0, 10, 20, 40 and 80 mg/l). t...