Behruz Rasuoli; Bahram Amiri; Mohammad Jafari; Mohammad hasan Assareh
Volume 18, Issue 4 , September 2012, , Pages 505-514
Abstract
This study was carried out to determine the effect of different NaCl and Na2SO4 concentrations, including (0, 100, 200, 300, 400 and 500 mM), on germination and initial growth of Seidlitzia rosmarinus. Germination percentage, germination rate, germination index, seed vigor index, radicle length, and ...
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This study was carried out to determine the effect of different NaCl and Na2SO4 concentrations, including (0, 100, 200, 300, 400 and 500 mM), on germination and initial growth of Seidlitzia rosmarinus. Germination percentage, germination rate, germination index, seed vigor index, radicle length, and plumule length were measured. Our results showed that the most of studied characters were severely inhibited at high concentration of NaCl and Na2SO4. The results revealed that the effects of the same concentrations of NaCl and Na2SO4 on radicle, plumule and plant length were significantly different, but germination percentage, germination rate, germination index and seed vigor index did not show significant differences. In general, the results indicated that Seidlitzia rosmarinus was more sensitive to Na2SO4 than NaCl and it could be considered asa chlorophyte halophyte.
Bahram Amiri; Mohammad hasan Assareh; Mohammad Jafari; Behruz Rasuli; Ali ashraf Jafari
Volume 19, Issue 2 , September 2012, , Pages 233-243
Abstract
Salinity is one of the main expanding constraints in lands under cultivation. Therefore, the ability of plants to survive under such a condition is important for ecological distribution of the species and agricultural development. Despite extensive research in this area, there are still many issues associated ...
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Salinity is one of the main expanding constraints in lands under cultivation. Therefore, the ability of plants to survive under such a condition is important for ecological distribution of the species and agricultural development. Despite extensive research in this area, there are still many issues associated with salt tolerance of plants. In this research, germination and seedling growth of two native species of Salicornia herbacea and Alhagi persarum were evaluated under different salinity levels. Seeds of these species were treated by different concentrations of NaCl and Na2SO4 in a growth chamber for 45 days. According to the results, germination and seedling growth of both species showed significant differences at in different salinity levels. Up to 200 mM and 150 mM NaCl, no significant differences were recorded for Salicornia herbacea and Alhagi persarum, respectively. In contrast, increment of sodium sulphate up to 100-150 m M, increased seedling growth and germination of Salicornia herbacea. While, a drastic decrease of germination was recorded for Alhagi persarum at 50 mM sodium sulphate. In general, it could be stated that Salicornia herbacea was more resistant to salinity.
Behruz Rasouli; Bahram Amiri; Mohammad Hasaan Assareh; Mohammad Jafari
Volume 18, Issue 1 , May 2011, , Pages 32-41
Abstract
This research was performed to determine the nutritional value of a halophyte species, Halostachys caspica in three different phonological stages including primary growth, flowering and seed ripening in three different sites i.e, Qom, Yazd and Urmia provinces Plant sampling was completely randomized ...
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This research was performed to determine the nutritional value of a halophyte species, Halostachys caspica in three different phonological stages including primary growth, flowering and seed ripening in three different sites i.e, Qom, Yazd and Urmia provinces Plant sampling was completely randomized and crude protein, ether extract, water percentage, acid detergent fiber, ash, dry matter digestibility and metabolism energy were measured by standard methods. Data analysis was done using SPSS software in a factorial design. According to the results, interaction effects of growth stages and different ecological sites showed a significant difference for most of the measured factors and they did not follow a regular trend. The results indicated that H. caspica had the highest forage quality in flowering (second stage) while with increase of plant age, crude fiber and ash increased in all the three studied sites. Growing in sever ecological conditions and having high forage quality, H. caspica may be considered for sustainable development plan in saline regions.