Ali Momenpour; Davod Bakhshi; Ali Imani
Abstract
The types of scion-rootstock compound and level of salinity affect on almond biochemical reactions. In order to evaluate the effect of salinity stress on biochemical reactions of almond genotypes, a experiment was carried out with 2 factors; cultivar in 4 levels including Shahrood 12, Touno, 1- 16 budded ...
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The types of scion-rootstock compound and level of salinity affect on almond biochemical reactions. In order to evaluate the effect of salinity stress on biochemical reactions of almond genotypes, a experiment was carried out with 2 factors; cultivar in 4 levels including Shahrood 12, Touno, 1- 16 budded on GF677 rootstock and GF677 and water salinity in five levels including 0, 1.2, 2.4, 3.6 and 4.8 g/l of sodium chloride salt (that electrical conductivity equal to 0.5, 2.5, 4.9, 7.3 and 9.8 ds/m, respectively). The result showed that in the total genotypes studied, with increasing salinity concentration to treatment 4.8 gr/lit, were increased content of hydrogen peroxide, malondialdehyde, others aldehyde. Also, content of total phenolics, antioxidant capacity, soluble carbohydrate, prolin, total soluble proteins, enzymes activity of catalase, ghayacol peroxidase and ascorbat peroxidase in the total genotypes studied, in begging, with increasing salinity concentration, were increased but with more increasing salinity concentration, those contents were reduced. Overall, the highest content of total soluble proteins, enzymes activity of catalase, ghayacol peroxidase and ascorbat peroxidase in level of salinity 3.6 gr/lit and the highest content of total phenolics, antioxidant capacity, soluble carbohydrate and prolin in level of salinity 4.8 gr/lit and lowest content of hydrogen peroxide, malondialdehyde, others aldehyde and total non-soluble carbohydrate in levels of salinity 3.6 and 4.8 gr/lit were observed in ‘Shahrood 12’ cultivar. Overall, of between total genotypes studied, Shahrood 12’ was recognized as the most tolerant cultivar to salinity stress.
Ensieh Ghorbani; Davood Bakhshi; Esmaiel Fallahi; Babak Rabiei
Abstract
In this study, calcium chloride (CaCl2) and two organic calcium compounds namely Calcicat and Folical were applied at four different spray programs including All-, Early-, Mid- and Late-season spray at the Abhar region in Zanjan were compared in 2012. Some qualitative characteristics of ‘Fuji’ ...
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In this study, calcium chloride (CaCl2) and two organic calcium compounds namely Calcicat and Folical were applied at four different spray programs including All-, Early-, Mid- and Late-season spray at the Abhar region in Zanjan were compared in 2012. Some qualitative characteristics of ‘Fuji’ apple fruit such as peel color and anthocyanin, internal ethylene concentration, total phenolic content and percentage of internal browning incidence were studied at harvest and during storage. The color indices namely L*، C*and h °were influenced by the calcium solution spray. Folical increased the L* index compared to control. Fruits which received calcium solutions had higher h° index and lower C* index than control. The anthocyanin content of fruit peel was influenced only by spray timing, at harvest. Late season spray resulted in less anthocyanin accumulation compared to other programs. Total phenolic content of the peel and pulp was affected by calcium compounds and spray programs in differently ways. There was not a clear trend in phenolic compounds change during storage; meanwhile, total phenolics decreased in the fruits peel and pulp. Calcium application decreased internal ethylene concentration. All calcium treatments significantly decreased the internal browning; however, it was not observed insprayed fruits by early season Folical and midseason Calcicat.
asma bastami; majid majidian; Golam Reza Mohsenabadi; Davood Bakhshi
Abstract
To investigate the effects of mycorrhizal fungi, phosphatic biofertilizer and manure application on yield and quantitative and qualitative criteria of coriander an experiment was conducted at Khoramabad during growing season of 2013. The experiment design was applied as factorial layout based on a randomized ...
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To investigate the effects of mycorrhizal fungi, phosphatic biofertilizer and manure application on yield and quantitative and qualitative criteria of coriander an experiment was conducted at Khoramabad during growing season of 2013. The experiment design was applied as factorial layout based on a randomized complete block design with 18 treatments and three replications. The factors were mycorrhizal inoculation in two levels (non-inoculation and inoculation), phosphate biofertilizer in three levels (zero, 35 and 70 kg/ha)and manure in three levels (10, 20 and 30 ton/ha). Result indicated that mycorrhizal inoculation and phosphate biofertilizer had significant (one percent) effects on plant height, inflorescence number per plant, 1000 seed weight, seed yield, biomass yield, essential oil and essential oil yield of coriander. Mean comparison showed that the highest effects among factors were obtained by mycorrhizal inoculation on all parameters. The highest seed yield )1780.67 kg/ha), biomass yield (3831.7 kg/ha) and essential oils (0.4 percent) were obtained of inoculation with mycorrhiza, consumption of 70 kg/ha phosphate biofertilizer and 20 ton/ha manure and they were 80, 51 and 135 percent more efficient than chemical control, respectively. Positive and synergistic interactions were obtained between mycorrhizal inoculation × phosphate biofertilizer on seed yield.
Ali Momenpour; Davood Bakhshi; Ali Imani; Hamed Rezaie
Abstract
The types of scion-rootstock compound and level of salinity affect on growth characteristics and concentration of nutrition elements of almond leaves and roots. In order to evaluate the effect of salinity stress on vegetative traits and concentration of nutrition elements of leaves and roots almond genotypes, ...
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The types of scion-rootstock compound and level of salinity affect on growth characteristics and concentration of nutrition elements of almond leaves and roots. In order to evaluate the effect of salinity stress on vegetative traits and concentration of nutrition elements of leaves and roots almond genotypes, a experiment was carried out with two factors; cultivar in four levels including ‘Shahrood 12’, ‘Touno’, ‘1-16’ budded on GF677 rootstock and GF677 and water salinity in five levels including zero, 1.2, 2.4, 3.6 and 4.8 g/l of sodium chloride salt (with the electrical conductivity of 0.5, 2.5, 4.9, 7.3 and 9.8 ds/m, respectively). The result showed that with increasing salinity concentration, branch height, branch diameter, and number of produced leaves and percentage of green leaves have been reduced but percentage of necrotic leaves and percentage of downfall leave were increased. The result showed that in the total genotypes studied, the highest rate of Na+ (2.12%), Cl- (4.94%), ratio Na+/K+ (2.03%), ratio Na+/Ca++ (1.92%), ratio Na+/Mg++ (6.81%), ratio Na+/P (14.07%), and the lowest rate of Ca++ (1.06%), Mg++ (0.33%), P (0.146%), Zn++ (32.7 ppm), Cu++ (9.33 ppm), in leaves was observed in treatment 9.8 ds/m of NaCl. The result showed that type of scion was affected in obstruction of Na+ absorption by the roots and their transported to leaves. In the total level of salinity studied, ‘Shahrood 12’ was the lowest rate of Na+, Cl-, ratio Na+/K+, ratio Na+/Ca++, ratio Na+/Mg++, ratio Na+/P and the highest ratio Cl-/ Na+. Also, this cultivar can tolerate high level of salinity (7.3 ds/m), by increasing content of K+ (1.65%),Cu++ (9.62 ppm), Fe++ (22.30 ppm), Zn++ (50.45 ppm) more than other genotypes studied in this research, to deal with the devastating effects of Na+. Overall, ‘Shahrood 12’ was recognized as the most tolerant cultivar to salinity stress.