to study some physiological and morphological traits of sugar beet varieties in response to salinity stress, three multi-germ sugar beets (13030, 22393 and ic) were grown in the greenhouse, faculty of agriculture, shahid chamran university, in 2009. the experiment was carried out under three levels of salinity in from of sodium chloride source, that included control (zero), 100 and 200 mm uses ...

To evaluate the physiological responses of chrysanthemum to silicon spray in non-stress conditions, this study was performed in two separate experiments (at 4 to 5 and 8 to 12-leaf stages) as a factorial randomized completely design with two factors: silicon source (in two levels: sodium silicate and calcium silicate) and the concentration of silicate at five levels (0, 50, 100, 150 and 200 mg ...

in order to investigate the effect of zinc element application on growth and some morphophysiological of maize (single cross 704) an experiment was conducted during 2010 at greenhouse. experimented design was complete randomize factorial with four replications. treatments of experiment were soil salinity (4, 8 ds.m-1 and 0 as a control) and different zinc concentration including 0, 10 and 20 mg...

salinity is one of the major problems in the world's vast areas of land are also faced with this problem. endophytes are microorganisms that use of the soil microorganisms, the reduction of environmental stresses such as salinity, has become a global solution. therefore, to investigate the effects of inoculation of fungal endophytes piriformospora indica and bacteria symbiosis hay azospiri...

background and objectives: alkalinity stress caused by the alkaline salts such as na2co3 or nahco3 in the soil. alkaline stress affected germination, growth and crop productivity. moreover, the alkalinity stress can directly damage plant growth, alter the availability of nutrients, and disrupt the balance of ions and mineral nutrition. the application of different seed pretreatment methods is o...

Nitric oxide (NO), an endogenous signaling molecule, is involved in various physiological processes and stress responses in plants. In the present research, Pyrodwarf pear (Pyrus communis) rootstocks were grown by nutrient solution to investigate the effects of sodium nitroprusside (SNP) application as an NO donor at 0, 0.1, 0.5, and 1 mM levels on plant stress tolerance, content of ma...

introduction safflower (carthamus tinctorius l.) is an important oilseed crop grown throughout the semiarid regions in many parts of the world. it has been cultivated for its oil and flowers and as a meal. alkaline stress is caused by alkaline salts such as na2co3 or nahco3 in the soil. alkaline stress, is widespread environmental constraint affecting crop productivity ,which can inhibit absorp...