The major objective of this investigation was to evaluate the potential of scented geraniums, Pelargonium roseum, to uptake and accumulate heavy metals nickel (Ni), cadmium (Cd), or lead (Pb). For this, plants were grown in an artificial soil system and exposed to a range of metal concentrations over a 14-day treatment period. Then, metals from the entire biomass were extracted. The results sho...

We developed an equation for estimating Arundo donax shoot dry weight from shoot length. The equation, shoot dry weight (g) = 14.254 (standard error = 0.275) shoot height (m), was as effective at explaining a high proportion of total variation in shoot dry weight (R = 0.90) as more complicated equations containing additional morphometric parameters. Tested against two independent datasets, the ...

A sand culture experiment was conducted to answer the question whether or not exogenous KNO(3) can alleviate adverse effects of salt stress in winter wheat by monitoring plant growth, K(+)/Na(+) accumulation and the activity of some antioxidant enzymes. Seeds of two wheat cultivars (CVs), DK961 (salt-tolerant) and JN17 (salt-sensitive), were planted in sandboxes and controls germinated and rais...

The effect of irrigation with lake water containing a variety of microcystins on accumulation of toxins, or toxin metabolites, and plant growth in ryegrass, clover, rape, and lettuce, was investigated in a glasshouse experiment. The plants were grown in sand culture and received either three or six applications of lake water, which was applied either directly to the sand surface or to the plant...

The interactive effects of nickel (Ni) and ascorbic acid (AsA) and gibberellin (GA3) on soybean seedlings (Glycine max L. cv. Union × Elf) were examined. Seven-day old hydroponically-grown seedlings were exposed to NiCl2, 6H2O (0.5 mM), either with or without AsA (1 mM) or GA3 (0.05 mM) or AsA (1 mM) plus GA3 (0.05 mM), for five days. Nickel toxicity symptoms, such as formation of reddish-brown...

heavy metal hyperaccumulators have recently attracted considerable attention in remediation of an area's pollutants. lead (pb) is one of the main pollutant heavy metals that its relatively high concentration have been reported in some environments. in present study, the potential of turfgrass tolerance, regarding seed germination and plant establishment were evaluated, in different concent...

Cotton is a potential and excellent candidate to balance both agricultural production remediation of mercury-contained soil, as its main fiber hardly involves into food chains. However, in cotton, there known rarely about the tolerance response mercury (Hg) environments. In this study, biochemical physiological damages, Hg concentrations (0, 1, 10, 50 100 µM), were investigated upland cotton se...

The results of present investigation revealed that among the different potting media treatments, M1: Vermiculite + Garden soil Sand was found to be most beneficial for improving took days germination, germination percentage, height seedling, number leaves seedling-1, stem diameter, primary roots length (cm), secondary roots, fresh and dry shoots weight, seed vigor index – I II leaf area (cm). I...