Ab initio molecular dynamics simulations and the approach of generalized collective modes are applied for calculations of spectra of longitudinal and transverse collective excitations in molten LiBr. Dispersion and damping of low- and high-frequency branches of collective excitations as well as wave-number dependent relaxing modes were calculated. The main mode contributions to partial, total, ...

The seasonal variation of water soluble extractive alcohol soluble extractive and ether soluble extractive have been investigated in leaves, wood and bark of Sesbania grandiflora, Sesbania bispinosa and Sesbania cannabina. Comparative account of water soluble extractive of leaves, wood and bark of Sesbania grandiflora was showed high level (range 4.2 to 5.8 %) than Sesbania bispinosa (range 3.3...

For years, the societies of various countries and international organizations have been taking action to eliminate iodine deficiency in iodine-deficient areas. Poland is one of those countries and – similarily to other European countries – it is located within areas with natural goitre endemicity. Since 1997, Poland has a new model of iodine prophylaxis, based on obligatory consumption of iodiz...

Five cycles of germination NaC1 tolerant alfalfa and the source population, 'Mesa Sirsa', were germinated in four salt solutions (NaC1, NaNO3, KC1, and KNO3) and Mannitol to try to determine the general mechanism involved in seed germination salt tolerance. Average germination over all germplasm sources in NaC1, NaNO3, KC1, KNO3, and Mannitol were 44.80, 38.88, 36.24, 29.07, and 60.93 percent, ...

understanding of physiological responses of salt tolerance might be lead to identify main salt tolerance mechanisms and essential approaches for improving grain yield stability, and also to select salt tolerant wheat cultivars. thus, the effects of salinity were investigated on grain yield and some of the characteristics related to salt tolerance. six wheat cultivars (roshan, kavir, karchia, ga...

S u m m a r y : The response of 11 grapevine rootstock varieties to increasing salt concentrations (0, 50, 85, 120, 155 mMNaCI) was studied under in vitro and growth chamber conditions . The effect of salinity on the mortality of explants was compared with that of plantlets grown under growth chamber conditions and with data in literature on rootstock resistance under field conditions . In addi...

in order to evaluation of morphological selection criteria for salt tolerance screening in wheat (t. aestivum l.) a factorial experiment based on completely randomized design in 3 replications were conducted under greenhouse condition. salinity treatments involved 4 levels: s=1.3dsm-1 (control), 5, 10, 15 dsm-1 from calcium chloride and sodium chloride with 10:1 (na: ca ratio) and another facto...

Salinity is one of the major problems limiting the yield of agricultural products. Radiation mutagenesis is used to improve salt-tolerant mutant plants. In this study, we aimed to improve salt-tolerant mutants of two oriental tobacco varieties. One thousand seeds of each variety (M₀) were irradiated with 100, 200, 300, and 400 Gy gamma rays by Cs-137 gamma. In the M₁ generation, 2999 single pla...