Fatemeh Ahmadi; Ali Momenpour; Maryam Dehestani-Ardakani; Jalal Gholamnezhad
Abstract
To evaluate the effect of salinity stress on some of growth characteristics of selected pomegranate (Punica granatum) genotypes of regains with salinity water and soil, a factorial experiment was carried out based on completely randomized design (CRD), with two factors; genotypes in 4 levels (‘Vahshi ...
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To evaluate the effect of salinity stress on some of growth characteristics of selected pomegranate (Punica granatum) genotypes of regains with salinity water and soil, a factorial experiment was carried out based on completely randomized design (CRD), with two factors; genotypes in 4 levels (‘Vahshi Babolsar’, ‘Narak Lasjerd Semnan’, ‘Chah Afzal’ and ‘Voshik Torsh Saravan’ genotypes and irrigation water salinity in 5 levels (1, 3, 5, 7 and 9 dS/m respectively). The results showed that type of genotype and level of salinity affected morphological and physiological characteristics and concentration of leaves element nutrient. In all of the studied genotypes, with increasing of salinity concentration, growth characteristics including branch height, branch diameter, number of total leaves, green leaves percentage, aerial organs fresh and dry weight, relative humidity percentage, SPAD, contents of a, b and total chlorophylls reduced. But, necrotic leaves percentage, downfall leaves percentage, root fresh weight to aerial organs fresh weight ratio, relative ionic percentage, Na+ and cl- percentage and Na+ to K+ ratio increased. Overall, ‘Chah Afzal’ and ‘Voshik Torsh Saravan’ genotypes were recognized as the most tolerant and sensitive genotypes to salinity stress, in respectively. ‘Chah Afzal’ genotype could be tolerated salinity and 7 dS/m by maintaining its growth characteristics and increasing potassium uptake against sodium.
Moslem Heydari; Nooshin Mir; S. Mohsen Moussavinik
Abstract
To investigate the effect of nanofertilizers functionalized with two organic compounds in phosphorusreleasing and its influence on the growth parameters of bean plant, a factorial experiment was conducted based on a completely randomized design in 3 replicationsat the Agriculture Research Center of Hamadan ...
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To investigate the effect of nanofertilizers functionalized with two organic compounds in phosphorusreleasing and its influence on the growth parameters of bean plant, a factorial experiment was conducted based on a completely randomized design in 3 replicationsat the Agriculture Research Center of Hamadan in 2014. Fertilizer treatments including P0 (zeolite without functional group (control sample)), P1 (zeolite + AcAcEN ligand), P2 (zeolite + HED ligand) and P3 (triple super phosphate) and also twotypes of bean including the red beans (PhaseolusvulgarisL) and cowpea (Vigna unguiculataL.) were used. Results showed that in comparison with two other zeolite fertilizers,usingnanozeolite functionalized with HED ligandresulted in improving the quantitative and qualitativeparameters of bean. Compared with triple super phosphate, P2 fertilizer showed better results in the case of grain yield and plant phosphorus uptake and moreover, phosphorus leaching was lower in this fertilizer. The general results of this report is representative of the useful and effective role of nanozeolite functionalized with HED ligand in improving the growth parameters as well as qualitative and quantitative characteristics of bean plant.
Bahare Kashefi; Mohadese Ghods; Mohamad Mogadam
Abstract
To study the interaction effect of the salinity and salicylic acid on some morphological and physiological traits in clary sage (Salvia sclarea), a pot experiment was conducted as factorial based on a completely randomized design with three levels of NaCl and control (zero, 50, 100 and 150 mM), as the ...
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To study the interaction effect of the salinity and salicylic acid on some morphological and physiological traits in clary sage (Salvia sclarea), a pot experiment was conducted as factorial based on a completely randomized design with three levels of NaCl and control (zero, 50, 100 and 150 mM), as the first factor and three levels of spraying the solution of salicylic acid and control (zero, 100, 200 and 300 mg/L), as the second factor with three replications in the greenhouse of Semnan Jihad-e-Agriculture Education center in 2013.The results of data variance analysis showed that the interaction of the salinity stress and salicylic acid levels were significant in other traits except the leaf length fresh weight and the rate of carotenoids. The maximum effect was seen at the salinity level of 50 and 100 mM and salicylic acid application at 200 mg/l. The results of this study indicated that leaf area and number, petiole length, leaf length and width, leaf fresh and dry weight, root length, chlorophylls concentration were influenced by the salinity levels in this plant. Somehow, their rates were decreased by increasing the salinity level, whereas the rates of soluble sugar, proline and carotenoid were increased. The application of salicylic acid showed a reducing effect in all traits.