THE INFLUENCE OF FOLIAR FERTILIZATION WITH HUMIC ACIDS ON THE PRODUCTION OF WHITE CABBAGE

The main purpose of the study was to test the effect of some fertilizers based on humic acids on autumn cabbage,Bucharest F1 in the ecological conditions of the South-West of Romania. The foliar products applied were formulated and obtained by ICPA Bucharest. The biological material was represented by the Bucharest F1 hybrid. The experience included three variants: V1-untreated, V2-foliar fertilization with Deceneu and V3 foliar fertilization with Humifert Plus. In order to achieve the proposed objectives, biometric determinations have been carried out on the eatable organs: height and diameter of the head, the shape index and the degree of stuffi,but also the quantity and quality of the cabbage production. Application of fertilizers led to increased production at the fertilized variants, significant differences were at the variant with the Deceneu product, 132.5 kg/ha and a good accumulation of ascorbic acid, 35.78 mg/100g fresh matter, when applying Humifert Plu

ANTIOXIDANT ENZYMES ACTIVITIES AND PROLINE CONTENT IN LEAVES OF SALIX SPECIES GROWN ON FLY ASH DUMPS

For remediation and re-cultivation of polluted soils, including fly ash dumps, stress-tolerant plants are needed, one of the species used for this purpose being the willow tree. A first response of the plant to different types of stress is the activation of the enzymatic and non-enzymatic antioxidant system for the neutralization of excess reactive oxygen species. The purpose of this paper is to evaluate the activity of catalase and peroxidase and proline content in leaves of 14 clones of Salix (7 Romanian and 7 Swedish) grown on fly ash dumps from Isalnita. The obtained data were compared to those determined for control cultures from Radovan. The samples were collected in July and were determined the catalase and peroxidase activity by colorimetric method. The proline content was determined from sulfosalicylic acid extract by colorimetric method with ninhidric acid as reagent using L proline as standard. The results obtained show an increase in peroxidase activity and in proline content (with few exceptions) in plants grown on ash dumps in comparison with the control plantation. The increase in antioxidant enzymes activities suggests a state of oxidative stress, the plants activating a defensive system. Oxidoreductase activity and proline content might be used as biomarkers of tolerance/adaptation of Salix specieson degreded soils.Â

EVALUATION OF SUGAR CONTENT IN STEM JUICE FROM SWEET SORGHUM HYBRIDS GROWN IN SOUTH WEST OF ROMANIA

Sweet sorghum is one of the most important agricultural sources used for generation of biomass that can be further processed and converted relatively easily into a fuel type of bioethanol, synthesis gas, vegetable protein, feed for livestock or green manure.Sweet sorghum belongs to C4 species group whose photosynthetic efficiency is high. Due the fact that the economic importance of sweet sorghum is determined by the high content of fermentable sugar the purpose of this paper is to establish, in comparison, the juice content of a three sweet sorghum hybrids in order to select the most valuable genotype for production.For achieving this goal on the experimented hybrids was determinate the total content of soluble solids, reducing sugar content and total sugar content. The results obtained show that the all hybrids have a high soluble solid content. Total sugar varied between 14.02% and 15.87% and from these a higher percent of 67.74% to 79.43% is represented by non-reducing sugar.The study put into the light the agronomic qualities of sweet sorghum hybrid Porumbeni 4 which proved to be the most promising hybrid with the highest sugar and biomass production.

The necessity of implementation of ERP systems within the actual economical-financial crisis

Initially started in the USA as a subprime crisis, the actual financial crisis tends to be transformedin one of the most powerful economical crisis that was known in the last ten years, and some of the analystspredict that this crisis is even worse than the one that took place in the ’30 years. In these conditions, seems tobe very natural that all the companies to look up for surviving solutions during this period, and one of themost popular methods to fight against the negative effects of the crisis applied by all the companies is the costreduction. We may consider also that such a period could represent in the same time an opportunity for thecompanies to reconsider the business processes and repositioned in the actual context of the market, and forthis a considerable help could be implementation of an ERP system

Laccase immobilized on mesoporous silica supports as an efficient system for wastewater bioremediation

The feasibility of using laccase from Trametes versicolor for degradation of aromatic hydrocar-bons has been investigated. In the experiments, benzo[a]pyrene (BaP) was used. Laccase was immobilized onto mesoporous micelle-templated silica such as Santa Barbara Amorphous (SBA-15) and hexagonal mesoporous silica (HMS) as well as corresponding amino-functionalized supports. The best results were obtained for SBA-15 mesoporous silica however the HMS support could be as well considered for this type of application. The reusability of laccase immobilized into both silica supports was tested for five reaction cycles and the conversion reached about 70% of the initial value

Calcium channel blockade and cardiovascular prognosis in the European trial on isolated systolic hypertension

In the double-blind Systolic Hypertension in Europe (Syst-Eur) Trial, active treatment was initiated with nitrendipine (10 to 40 mg/d) with the possible addition of enalapril (5 to 20 mg/d) and/or hydrochlorothiazide (12.5 to 25 mg/d) titrated or combined to reduce sitting systolic blood pressure by at least 20 mm Hg to <150 mm Hg. In the control group, matching placebos were used similarly. In view of persistent concerns about the use of calcium channel blockers as first-line antihypertensive drugs, this report explored to what extent nitrendipine, administered alone, prevented cardiovascular complications. Age at randomization averaged 70.2 years and systolic/diastolic blood pressure 173.8/85.5 mm Hg. Of 2398 actively treated patients, 1327 took only nitrendipine (average dose, 23.4 mg/d), and 1042 progressed to other treatments including nitrendipine (n=757; 35.7 mg/d), enalapril (n=783; 13.4 mg/d), and/or hydrochlorothiazide (n=294; 21.0 mg/d). Compared with the whole placebo group (n=2297), patients receiving monotherapy with nitrendipine had 25% (P=0.05) fewer cardiovascular end points, and those progressing to other active treatments showed decreases (P</=0. 01) in total mortality (40%), stroke (59%), and all cardiovascular end points (39%). Among the control patients, 863 used only the first-line placebo. Compared with this subgroup, patients receiving monotherapy with nitrendipine showed a nearly 50% (P</=0.004) reduction of all types of end points, including total and cardiovascular mortality. The full relative benefit from nitrendipine was seen as early as 6 months after randomization. To ascertain that the benefit conferred by the dihydropyridine was not due to selection bias, the 1327 patients remaining on monotherapy with nitrendipine were matched by gender, age, previous cardiovascular complications, and systolic blood pressure at entry with an equal number of placebo patients. In this analysis, nitrendipine reduced (P</=0.05) cardiovascular mortality by 41%, all cardiovascular end points by 33%, and fatal and nonfatal cardiac end points by 33%. Despite the limitations inherent in post hoc analyses, the present findings suggest that the calcium channel blocker nitrendipine, given as a single antihypertensive medication, prevents cardiovascular complications in older patients with isolated systolic hypertensio