Vol. 44, June, 2013.

produit similaire au viagra 1/44 INFLUENCE OF BIO-ORGANIC FERTILIZATION ON THE GROWTH AND PRODUCTIVITY OF PEA PLANTS UNDER SANDY SOIL CONDITIONS

Mona M. Abou El-Nour; F.A. Helemish; A.F.M. Abdel-Wahab*and Soad Y. Serry*

Fac. Women's for Art, Sci. and Edu., Ain Shams Univ.,Cairo, Egypt.

*Soils, Water and Environ. Res. Inst.; Agric. Res. Center, Giza, Egypt.

Three rhizobial strains were tested in the Lab. to investigate and select the most tolerant strains to different stress conditions (pH, salinity, temperature and nitrogen concentration), which are environmental limiting factors to the growth and activity of rhizobial strains. Moreover, a field experiment was conducted at El-Ismailia Agric. Res. Station, El-Ismailia Governorate located at 30º 35´ 41.901˝ N for Latitude and 32º 16´ 45.834˝ E for Longitude, Egypt, to investigate the effect of compost and biofertilizer ( qual o melhor viagra ou cialis ou levitra Rhizobium and Plant growth Promoting Rhizobacteria, PGPR) on growth and productivity of pea ( cialis 20 posologie Pesium-sativum) comparing to those of pea grown under traditional system in which N-fertilizer (100Kg N/fed. full dose) and farmyard manure were applied as a control treatment. Results exerted that, co-inoculation and enriched compost had a positive effect on nodules number and dry weight (D. wt.) compared to control. In contrast, differences between treated pea plants and control were not significant in terms of all the investigated growth and yield parameters,

comment acheter cialis en ligne 2/44 USING MARINE ALGAE EXTRACTS AS BIO-FERTILIZER TO ALLEVIATE SALINE INJURY IN CROP PLANTS

Shaddad, M. A., Abla A. Farghl*, Galal, H. R.* andHassan, E. A.*

Department of Botany, Faculty of Science, Assiut University, Assiut,

                 *Department of Botany, Faculty of Science at Qena, South Valley University.

In the present investigation, an attempt has been made to investigate the effect of marine algae extracts of the brown seaweeds, viagra pastèque Sargassum dontifolium and le viagra fait quoi Padina gymnospora (1.0% conc.) as bio-fertilizer on the growth, concentration of organic solutes and some mineral elements of two genotypes of plant species, monocotyledon wheat (cv. Sakha-94) and dicotyledon broad bean (cv.Masr-1) under salinity stress grown for 40 days, to what extent can improved the salt tolerance of the two selected plants. 150, 200 mM NaCl resulted in injurious effects led to the death of the tested plants (broad bean and wheat cultivars, respectively). Accordingly, the broad bean (cv.Masr-1) is the most sensitive species compared to wheat (cv. Sakha-94). This was companied with differences in accumulation of saccharides, nitrogen compounds, and some mineral elements contents (Na+, K+, Ca++ and Mg++). The reaction to salt stress was expressed as proline and Na+ accumulation in both root and shoot of the two plants. These results indicated that the application of seaweed liquid fertilizer (1.0%) could completely alleviate the saline injury in broad bean and wheat cultivars.

prix du generique du viagra en france 3/44 THE USE OF BACILLUS MYCOIDES AND BACILLUS SUBTLIS AS BIOCONTROL AGENTS FOR THE FUNGI CAUSING ROOT ROT DISEASE IN COMMON BEAN

Mona F. Ghazal, Lobna A. Moussa, *Sayed A. Fayedand *Amr A. Mostfa

Agric. Microbiol. Dept., Soils, Water & Environ. Res. Inst., Agric. Res. Center (ARC), Giza, Egypt

* Biochem. Dept., Fac. Agric., Cairo Univ., Giza, Egypt.

In the present study, a laboratory Petri diseches trial is carried out to evaluate using different rhizospheric bacterial isolates to resist the pathogenic fungi cialis de bonne qualite Rhizoctonia solani, Fuzarium solani and cialis et alfuzosine Scloritium rolfsii that causing common bean root rot diseases by adopting the dual culture technique. Results revealed that bacterial isolate No.8 can resist forum viagra et hypertension R. solani, F. solani and Scl. Rolfsii by 74, 43and 77%, respectively, and isolate No.13 can resist R. solani, F. solani and S. rolfsii by 75, 35 and 77%, respectively. These bacterial isolates were identified as Bacillus mycoides (isolate No. 8) and Bacillus subtlis (isolate No. 13), respectively. So, it can be of worth to mention that these bacterial isolates can be used as bio-agent to overcome the root rot diseases that infect common bean plants instead.

4/44 EFFECT OF POST-EMERGENCE HERBICIDES (DICLOFOP-METHYL AND PENDIMETHALIN) ON ITALIAN RYEGRASS (LOLUIM MULTIFLORUM) GROWTH AND DEVELOPMENT ASSOCIATED WITH BARLEY (HORDEUM VULGARE)

Khalid S. Alshallash

College of Science and Humanities Studies, Shagra University, Saudi Arabia

The application of the herbicide Diclofop-methyl post emergence showed an effective control of ryegrass (Lolium multiform) grown with barley even at low rates of treatments. 0.25 kg /ha treatment decreased the rye grass plants number and fresh weight by about 50%. Barley was undamaged by any of the Diclofop-methyl treatments. The herbicide Pendimethalin applied as a post emergence at dose of 0.125 and 0.25kg /ha decreased ryegrass numbers and fresh weight significantly. At 1kg/ha there was about 50% reduction in plant numbers and fresh weight. There was no evidence of damage to barley by Pendimethalin at any rates tested.

5/44 EFFECT OF KINETIN, 2, 4- D AND MEDIUM STRENGTHS ON THE CALLUS PRODUCTION OF SALVADORA PERSICA L.PLANTS THROUGH TISSUE CULTURE.

Sherif F. El-Sharabasy, Mohamed E. El-Sharnouby* and Ahmed A. Zahran*

The Central Lab., of Date Palm Res. and Development, Giza, Egypt.

*Natural Products Dept., National Cent. Rad. Res. and Tech., Nasr City, Cairo, Egypt.

This investigation was carried out on Salvadora persica L. plants where shoot tips were cultured on solid woody plants medium (WPM) containing 25 g/ l sucrose and supplemented with 0.1 or 1 mg/l Kinetin, and 2, 4-D at concentrations of 1 and 2.5 mg/l. The, explants were cultured on , , , and full strength WPM supplemented with the best growth regulator combination obtained from the first experiment in this investigation. Results were recorded after 2, 4, 6, 8 and 10 weeks in both experiments aiming at selecting the best medium for callus production of Salvadora persica L. in vitro. The results indicated that maximum number of callus produced from Salvadora persica L. explants resulted from cultures on WPM medium enriched with supplements of 0.1 mg/ l kinetin and 1 mg/ l 2, 4- D after 10 weeks under a photoperiod of 16 hr. light. Moreover, strength WPM recorded the best results after 8 and 10 weeks compared to other medium strengths and culture durations.

6/44 THE BIOCHEMICAL REACTION AND MICROBIAL ENZYME IN THE CELLULOLYTIC ORGANISMS.

Mohamed H.M. Abd El- Megid and *Hussein M. El-Kabbany.

Natural Product Radiation Research Dept; *Health Radiation Research Dept.,

National Center for Radiation Research and Technology, Atomic Energy Authority.

Cellulases are relatively costly enzymes, and a significant reduction in cost will be important for their commercialuse in the preparation of cellulosic feedstock. For economic pointof view, there is a need to increase cellulase enzyme volumetricproductivity by using cheaper substrates, with higher stability and specificity substrates for specific processes. The effect of γ-irradiation on microorganisms (logcfu/g) during storage at 4°C and storage period gives result some not detected and other negative effect.The microbial utilization is considered relative to quantification of cells and enzymes in the presence of solid substrates as well as apparatus and analysis for cellulose-grown continuous cultures, quantitative description of cellulose hydrolysis is respect to adsorption of enzymes, rates of enzymatic hydrolysis, bioenergetics of microbial utilization, kinetics of microbial cellulose utilization, and contrasting features compared to soluble substrate kinetics. The abilityof microbial utilization were at higher levels of aggregation: the structure and composition of cellulosic biomass, enzyme systems, molecular biology of enzymes, physiology of cellulolytic microorganismsand ratelimiting factors in nature.A biological on processing cellulosic biomass is presented, including features of substrates and alternative process configurations. Organism development was considered for bioprocessing (BP), in which the production of cellulolytic enzymes, hydrolysis of biomass, and fermentation of resulting sugars to desired products occur in one step. Two organisms development for CBP were examined: (A) improve product yield and tolerance in microorganisms able to utilize cellulose. (B) express a heterologous system for cellulose hydrolysis and utilization in microorganisms that exhibit high product yield and tolerance.
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