As photosynthesis is the basic process during which light energy absorbed and converted into organic matter, importance of plant pigment chlorophyll (a b forms) as an intermediary in transformation solar its activity synthesis substances plants are crucial. Therefore, this paper provides overview methods for monitoring optical molecules (non-destructive destructive) quantification plants. These used to estimate effects different stress factors (abiotic, biotic xenobiotic) on efficiency...

Studying plant species rich in bioactive compounds, including allelochemicals, could lead to the development of biodegradable and environmentally safe herbicides. In this study, a water extract hemlock (Conium maculatum L.), known be alkaloids, was used investigate its effects on germination Amaranthus retroflexus L., Ambrosia artemisiifolia Stellaria media (L.) Vill., Lactuca sativa providing valuable insights into phytotoxic properties. Among C. extracts (CmWEs) tested, that dry leaves...

The correlation analysis and the path coefficient were applied to wheat data set with objective determine effect of five physiological traits (early vigor, early maturity, leaf senescence, flag area total biomass per plant) on grain yield under irrigation drought stress conditions. consisted 100 divergent genotypes tested in four-year field trials. Highly significant correlations found between yield, vigor plant both treatments. A highly negative was detected days flowering, as well as,...

The 2,4-D (2,4-dichlorophenoxyacetic acid) is using as a growth regulator in tissue culture media. Maize seeds have poor ability to maintain germination rate the long term.To examine possible restorative effect of homeopathic potencies on maize seedlings originating from damaged by accelerated aging.Seeds four lines were subjected aging stress treatment. Seed samples treated with distilled water (control) and range 2,4-D: 3C, 3.75C, 4.5C, 5.25C 6C. capacity, fresh substance (FS) length root...

The effect of arsenic (32 - 96 µM) on the phosphorus content and Chl fluorescence was studied in soybean (Glycine max Merril) grown nutrient solution with without phosphorus. increased concentration As led to decrease P plant organs. Parameters leaves presence these concentrations did not show significant changes.

In this study, influence of wide range 24-epibrassinolide (24-EBL) on early growth potential two maize hybrids (ZP 434 and ZP 704) was examined. Paper concerns germination, seedling biomass, important chlorophylls content, redistribution elements (heavy metals microelements), in a seedlings the hybrids, as influenced by different 24-EBL concentrations. It found that react differently to exogenously applied hormone. The biggest differences between examined considering germination level were...

High-performance thin-layer chromatography (HPTLC) combined with image analysis and pattern recognition methods were used for fingerprinting of phenolic compounds present in seedlings two maize genotypes ZP 434 (new generation hybrid, drought tolerant) 704 (older sensitive) treated different concentrations 24-epibrassinolide. This is the first report TLC chromatographic profile phenolics’ mixtures seed extracts influenced by brassinosteroid phytohormones. Nine samples shoot whole...

Barley grain is rich in mineral nutrients, but their bioavailability to humans depends on antinutrients that restrain and promoters promote bioavailability. The aim of this study was examine composition barley grain, including phytate phenolics as antinutrients, carotenoids glutathione elements, such Ca, Mg, Fe, Si, Zn Mn influenced by various non-standard foliar fertilizers (Zircon, Chitosan, Siliplant, Propikonazole), some hormonal growth-stimulators (Epin Extra, Benzyladenine), potential...

Plant protection with natural products is a new trend in environmentally friendly agriculture. Nepeta rtanjensis Diklic et Milojevic an endemic and critically endangered plant species Serbia. We explored the phytotoxic potential of water emulsion essential oil (NrEO) high amounts trans,cis-nepetalactone on five weeds. The most sensitive was Stellaria media (L.) Vill., as NrEO (from 0.013% to 0.1%) completely inhibited germination. Germination Amaranthus retroflexus L. Artemisia vulgaris at...

Quarantine species such as potato cyst nematodes Globodera rostochiensis and G. pallida are present in Serbia since 1999 2005, respectively. These sibling their morphological identification is complex due to morphometric overlap. The cysts from the localities of Kladnica, Sanac, Gojna Gora Milatovici were grown on susceptible varieties differences have been discussed. To avoid ambiguities designation a duplex PCR method was chosen for rapid accurate identification. whole procedure, DNA...

Deficiencies of mineral elements in human nutrition could be surpassed by crop fortification. One the prevalent measures fortification is foliar fertilization. The aim this study was to determine content and availability nutrients Mg, Fe Zn, together with phytate, as an anti-nutritive factor, β-carotene a promoter nutrient grain two soybean cultivars (Nena Laura) treated different non-standard fertilizers (mainly based on plant extracts). Generally, negative correlation between phytate...

Chemical composition of soybean grain may be modified by application foliar fertilizers. The aim this study was to test the effect different organo-mineral fertilizers: Zlatno inje, Bioplant Flora, Algaren BZn, Zircon, as well plant growth regulator Epin Extra, on potential availability mineral elements (Mg, Fe, Mn and Zn) from three commercial varieties: ZP-015, Nena Laura (variety lacking in Kunitz trypsin inhibitor). In addition, phytate (Phy) β-carotene contents were determined. ZP-015...

24-epibrassinolide (24-EBL) is plant steroid hormone that can regulate several physiological effects in plants, including promotion of cell growth and induction heat stress tolerance. The purpose this work to investigate the influence various concentrations 24-EBL on dehydration mechanism seedlings two maize hybrids (ZP434 ZP704). Control treated samples were subjected isothermal conditions for processes. carbohydrates mineral contents possible changes (from kinetics standpoint)...

Polyphenols present in different plant cell organelles increase the resistance of plants to various types environmental stresses. We investigated possibility increasing content bioactive compounds seed yellow soybean variety Laura. The was treated during vegetation with five products based on extracts, assumption enrichment nutrients. Soybean flour extracts were screened spectrophotometrically for total phenolic and antioxidant activity. activity evaluated using three methods. acids...

The general opinion about the introduction of potato in Europe is one regarding direction from South America to Spain and subsequent distribution other continents. Some historical data point out an alternative road. spread its place origin continents light parasite-host relationship, relying on nematode molecular data, discussed present work. Biogeographic history cyst populations different congruence with records.

Brassinosteroids (BRs) are a class of plant hormones that play important roles in regulating various physiological and developmental processes plants. One the most effective BRs involved modulating crop growth is 24-epibrassinolide (24-EBL). The effects different concentrations 24-EBL on biochemical biophysical parameters critical to early stages seedling development were investigated using two maize hybrids, ‘ZP 434’ (a new-generation hybrid) 704’ (an older-generation hybrid). evaluation...

Proposed distributed reactivity model of dehydration for seedling parts two various maize hybrids (ZP434, ZP704) was established. Dehydration stresses were induced thermally, which is also accompanied by response to heat stress. It found that an increased value activation energy counterparts within radicle ZP434, with a high concentration 24-epibrassinolide (24-EBL) at elevated operating temperatures, probably causes diffusion mechanisms in cutin network and may increases likelihood...

Due to the frequent use of fossil fuels, which has negative effects on environment, there is a need find new, environmentally acceptable replacements for fuels. One possible replacement inclusion green technologies, in order obtain type fuel that would be from an environmental and economic point view. Biodiesel represents renewable less toxic substituent consists esters higher fatty acids depending conditions, can manufactured various types oils, both plant animal origin. Since corn one most...

Malnutrition, as a global problem, is mainly caused by low level of mineral elements in staple food (deficient soil). Biofortification based on selection genotypes with enhanced concentration grain, well decreased substances which interfere bioavailability gut (like phytic acid), and increased content that increase availability (such β-carotene). The experiment 51 maize (Zea mays L.) inbred lines different heterotic background was set up order to evaluate chemical composition grain determine...

Application of three combinations lactic acid bacteria (Lactobacillus plantarum, Lactobacillus rhamnosus), phototrophic (Rhodopseudomonas palustris) and yeast (Saccharomyces cerevisiae) with sugar cane molasses, marked as: EM1, EM5 EM AGRO, against the phytopathogenic fungi tomato pepper: Fusarium oxysporum, Alternaria alternata, Botrytis cinerea, Colletotrichum sp., Verticilium dahliae Pythium aphanidermatum was evaluated in vitro vivo. A combination named showed highest mycelium growth...

The paper provides an overview of various aspects desiccants and bleaching herbicides, from different chemical groups, which have in common the drying leaf mass. In weed plants, they can act as total or selective be applied mature stages crop, where by mass promote maturation some important crops such sunflower, soybeans, potatoes. More less, all these herbicides are highly significantly toxic, greatly complicates their application. EU, there was initiative to ban them (e.g. paraquat)....