in this research, we studied polyamines including putrescine (put), spermidine (spd) and spermine (spm) changes in three common bean (phaseolus vulgaris) genotypes, k-s-31167, ge-288 and naz under drought stress. our result showed steadily increase in putrescine (put) and spermine (spm) in all three genotypes.  ge-288 genotype showed decrease and then increasing in spermidine (spd) content but ...

There are many astringent date cultivars at maturity (Full coloration) around the world. These fruits could not be consumed at this stage due to the presence of soluble tannins. Growers have to wait until about 50% of these bunches reach to the rutab stage (ripening) which represents a major source of fruit loss due to abscission, birds attack and pathogens. Furthermore, late-maturing cultivars...

A structural model of LiPON solid electrolyte, containing elements that simulate drift conductivity, diffusion and leakage current was proposed. The dependence the impedance on frequency calculated, parameters at which theoretical curve best approximates experimental Nyquist diagrams were determined. Based these data, ion coefficient conductivity are D1 = 1.5 × 10−11 cm2/s σ 1.9 10−6 S/cm, resp...

the anti-senescence biogenic polyamines (pas) putrescine (put), spermidine (spd) and spermine (spm) are involved in plant growth processes and responses to stress. the physiological mechanism of exogenous put to affect the senescence of cut lisianthus flowers during vase life was investigated. fresh cut lisianthus flowers were treated with distilled water (control), 0.5, 1 and 2 mm put and then...

Melatonin is a new plant hormone that plays an important role in stress tolerance. For investigation the effect of exogenous application of melatonin on salt tolerance in rosemary (Rosmarinus officinalis L.), a factorial experiment was conducted in a completely randomized design with three replications. The first factor was melatonin (50, 100 µM) and the second factor was salinity stress (6, 9,...