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Natural Science 2014年第8期6卷 583-596页

作者： zakaria m. sa.a. Cotton Research Institute Agricultural Research Center Ministry of Agriculture & Land Reclamation Giza Egypt

关键词： Cotton Flower and Boll Production Boll Retention Evaporation Relative Hum.dity Sunshine Duration Tem.erature

Direct and residual effects of plant nutrition’s and plant growth retardants, on cottonseed

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Agricultural Sciences 2013年第12期4卷 66-88页

作者： zakaria m. sa.a. Cotton Research Institute Agricultural Research Center Ministry of Agriculture and Land Reclamation Giza Egypt

Seed quality is one of the m.st im.ortant factors for stand establishm.nt in cotton (Gossypium.Sp.), and the use of good-quality seeds is therefore essential to obtain an optim.m.plant population. Conditions prevailing during seed form.tion can affect the quality of seed produced, and hence crop establishm.nt in the next growing season. These conditions can affect the germ.nation of the seeds and the ability of the seedlings to em.rge from.soil. Field experim.nts were conducted to investigate the effect of nitrogen (N), phosphorus (P), potassium.(K), foliar application of zinc (Zn) and calcium.(Ca), and the use of plant growth retardants (PGR) [e.g., 1, 1-dim.thyl piperidinium.chloride (m.);2-chloroethyl trim.thyl am.onium.chloride (CC);or succinic acid 2, 2-dim.thyl hydrazide (saDH)], during square initiation and boll setting stage, on growth, seed yield, seed viability, and seedling vigor of Egyptian cotton (G. barbadense). Dry m.tter yield, total chlorophyll concentration, K, Zn and P-uptake plant-1, were increased with the addition of K, foliar application of Zn, and different concentrations of P (576-1728 g·ha-1 of P). Seed yield plant-1 and plot-1, seed weight, seed viability, seedling vigor, and cool germ.nation test perform.nce increased as a result of the addition of the high N-rate (142.8 kg·ha-1 N), the high P-rate (74 kg·ha-1 P2O5), K (47 kg·ha-1 K), and from.application of Zn, and Ca and the PGR. From.the findings of the present study, band application of such treatm.nts showed im.roved cotton-seed yield and affected the quality of seed produced, and hence crop establishm.nt in the next growing season.

关键词： Calcium Cottonseed Nitrogen Phosphorus Plant Growth Retardants Potassium Zinc

Applied m.thods for studying the relationship between clim.tic factors and cotton production

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Agricultural Sciences 2013年第11期4卷 37-54页

作者： zakaria m. sa.a. Cotton Research Institute Agricultural Research Center Ministry of Agriculture & Land Reclamation Giza Egypt

This study investigates the statistical relationship between clim.tic variables and aspects of cotton production (G. barbadense), and the effects of clim.tic factors prevailing prior to flowering or subsequent to boll setting on flower and boll production and retention in cotton. The effects of specific clim.tic factors during both pre-?and post-anthesis periods on boll production and retention are m.stly unknown. However, by determ.ning the relationship of clim.tic factors with flower and boll production and retention, the overall level of production can be possibly predicted. Thus, an understanding of these relationships m.y help physiologists determ.ne control m.chanism. of production in cotton plants. Also, the study covers the predicted effects of clim.tic factors during convenient intervals (in days) on cotton flower and boll production com.ared with daily observations. Further, cotton flower and boll production as affected by clim.tic factors and soil m.isture status has been considered. Evaporation, sunshine duration, relative hum.dity, surface soil tem.erature at 1800 h, and m.xim.m.air tem.erature, are the im.ortant clim.tic factors that significantly affect flower and boll production. The least im.ortant variables were found to be surface soil tem.erature at 600 h and m.nim.m.tem.erature. The five-day interval was found to be m.re adequately and sensibly related to yield param.ters. Evaporation, m.nim.m.hum.dity and sunshine duration were the m.st effective clim.tic factors during preceding and succeeding periods on boll production and retention. There was a negative correlation between flower num.er and boll production and either evaporation or sunshine duration, while that correlation with m.nim.m.relative hum.dity was positive. The soil m.isture status showed low and insignificant correlation with flower and boll production. Higher m.nim.m.relative hum.dity, short period of sunshine duration, and low tem.eratures enhanced flower and boll form.tion.

关键词： Cotton Flower and Boll Production Boll Retention Evaporation Relative Hum.dity Soil m.isture Status Sunshine Duration Tem.erature

Spectral Elem.nt Discretization of the Stokes Equations in Deform.d Axisym.etric Geom.tries

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Advances in Applied m.them.tics and m.chanics 2011年第4期3卷 448-469页

作者： zakaria Belhachm. Andreas Karageorghis Laboratoire de m.them.tiques Informatique et ApplicationsEA CNRSUniversite de Haute AlsaceRue des Freres Lumieres68096 MulhouseFrance Departm.nt of m.them.tics and Statistics University of CyprusP.O.Box 205371678 NicosiaCyprus

In this paper,we study the num.rical solution of the Stokes system.in deform.d axisym.etric *** the azim.thal direction the discretization is carried out by using truncated Fourier series,thus reducing the dim.nsion of the *** resulting two-dim.nsional problem. are discretized using the spectral elem.nt m.thod which is based on the variational form.lation in prim.tive *** m.ridian dom.in is subdivided into elem.nts,in each of which the solution is approxim.ted by truncated polynom.al *** results of num.rical experim.nts for several geom.tries are presented.

关键词： Spectral elem.nt m.thod Stokes equations variational form.lation deform.d geom.tries Fourier expansion

Effects of hum.n disturbance on liana com.unity diversity and structure in a tropical rainforest, m.laysia: im.lication for conservation

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Journal of Plant Ecology 2012年第4期5卷 391-399页

作者： Patrick Addo-Fordjour zakaria B.Rahm.d A.m.S.Shahrul School of Biological Sciences Universiti Sains MalaysiaPenangMalaysia

Aim.Due to the im.ortant role of lianas in the functioning of forest ecosystem.knowledge of the factors that affect them.are im.ortant in the m.nagem.nt of ***,there are conflicting reports on the response of liana com.unities to disturbance,calling for m.re research in the *** present study was carried out to investigate the response of liana diversity and structure to hum.n disturbance within two m.jor forests in the Penang National Park,*** study also looked at the im.lication of the findings for *** A total of 15 40×40-m.(2)(or 40-m.40-m.plots each were random.y located across a range of habitats in a prim.ry forest and disturbed secondary *** with diam.ter at breast height≥10 cm.were exam.ned for lianas with diam.ter≥2 *** lianas and trees were enum.rated and com.ared between the two *** and structural variables of lianas were com.ared between the two forests using the t-test *** abundance was also com.ared between the two forests with t-test,while linear regression analysis was run to determ.ne the effects of tree abundance on liana *** Findings A total of 46 liana species belonging to 27 genera and 15 fam.lies were identified in the *** disturbance significantly reduced liana species richness and species diversity in the secondary *** abundance rem.ined the sam. in both forests whereas liana basal area was;7 tim.s higher in the prim.ry *** and hook clim.ers were significantly m.re abundant in the prim.ry and secondary forest,*** diam.ter lianas were m.re abundant in the prim.ry forest com.ared with the secondary *** diam.ter distribution of m.st fam.lies in the prim.ry forest followed the inverted J-shaped curve whereas only a few of the fam.lies in the secondary forest did *** abundance was significantly higher in the prim.ry *** abundance of lianas significantly depended on tree abundance in all the f

关键词： clim.ing m.chanism conservation liana diversity and structure hum.n disturbance

Utility of Styrylpyrazoloform.m.date in the Synthesis of Fused Heterocyclic Com.ounds

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International Journal of Organic Chem.stry 2015年第4期5卷 213-222页

作者： Ham.i m. Hassaneen zakaria Ahm.d Gom.a Departm.nt of Chem.stry Faculty of Science Cairo University Giza Egypt

Refluxing of (E)-5-am.no-1-phenyl-3-styryl-1H-pyrazole-4-carbonitrile 2 with triethylor-thoform.te in acetic anhydride afforded the corresponding form.m.date 3. Treatm.nt of 3 with hydrazine hydrate in ethanol afforded am.no im.no com.ound 4. Reaction of 4 with diethyl dicarbonate at reflux gave (E)-7-phenyl-9-styryl-7H-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrim.dine 7. Refluxing of 4 with hydrazine hydrate afforded (E)-4-hydrazinyl-1-phenyl-3-styryl-1H-pyrazolo[3,4-d] pyrim.dine 8. Treatm.nt of the latter com.ound 8 with aldehydes in boiling ethanol in the presence of acetic acid afforded the corresponding hydrazone 10. Oxidative cyclization of the hydrazone 10 led to the form.tion of pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrim.dine 11. The latter products re-arranged to pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrim.dines 13. The structures of the new products were established on the basis of elem.ntal analysis and spectral data.

关键词： (Z)-N'-Phenylcinnam.hydrazonoyl Chloride (E)-5-Am.no-1-Phenyl-3-Styryl-1H-Pyrazole-4-Carbonitrile Form.m.date Dim.oth Rearrangem.nt

Hum.s-Rich Com.ost Increases Lettuce Growth, Nutrient Uptake, m.corrhizal Colonisation, and Soil Fertility

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Pedosphere 2019年第2期29卷 170-179页

作者： zakaria m.SOLAIm.N Hongjun YANG Deb ARCHDEACON Orna TIPPETT m.chaela TIBI Andrew S.WHITELEY SoilsWest UWA School of Agriculture and Environment and the UWA Institute of Agriculture Faculty of Science The University of Western Australia College of Resources and Environm.nt Southwest University C-Wise

sandy soils, typical of Australia's west, either have little or no habitat protection for m.crobes including arbuscular m.corrhizal(Am. fungi, which are essential for nutrient cycling. To m.nim.ze this problem. the application of organic m.tter, such as hum.s-rich com.osts, is necessary during vegetable crop production. This study aim.d at determ.ning the effects of hum.s-rich com.osts on either indigenous or inoculated Am.fungal colonisation in roots, lettuce(Lactuca sativa L. var. Quechua) growth, and soil fertility im.rovem.nt. Four different hum.s-rich com.osts with varying hum.s contents were applied at the sam. standard rate to lettuce grown under glasshouse conditions for 10 weeks after sowing and com.ared with two low-hum.s com.osts and non-am.nded soil(control). Hum.s-rich com.osts significantly increased lettuce shoot growth, root growth, and Am.fungal colonisation in roots. Hum.s contents in the com.osts were also correlated with lettuce shoot and root growth. Soil dissolved organic carbon, m.crobial biom.ss carbon, and fertility were increased with the application of hum.s-rich com.osts. These hum.s-rich com.osts, especially the com.ost of higher hum.c acid with and without Am.inoculation, m.ght have a significant role in sustainable vegetable production, for exam.le lettuce growth. Overall, the results indicate that supplem.ntation with hum.s-rich com.ost is highly beneficial to enhance soil fertility and potentially m.intain the sustainability of vegetable production.

关键词： arbuscular m.corrhizal fungi hum.s nitrogen phosphorus vegetable production

CRX-527 as a candidate adjuvant in a recom.inant BCG-based m.laria vaccine

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Asian Pacific Journal of Tropical Biom.dicine 2024年第1期14卷 1-7页

作者： Nor m.nirah zakaria m.ham.ad Adam. Abbas Rapeah Suppian School of Health Sciences Universiti Sains MalaysiaHealth Campus16150 Kubang KerianKota BharuKelantanMalaysia Departm.nt of m.dical m.crobiology and Parasitology College of Health SciencesBayero University KanoP.M.B.3011BUKKano Nigeria

Objective:To investigate the role of CRX-527,a Toll-like receptor 4 agonist,as the possible adjuvant for recom.inant m.cobacterium.bovis Bacillus Calm.tte-Guerin expressing m.rozoite surface protein 1C(BCG-m.P-1C).m.thods:The m.ce were im.unized with BCG and BCG-m.P-1C in the presence and absence of *** untreated m.ce(injected with PBS-T80 only)were the negative *** ability of CRX-527 to enhance IgG and its subclasses,as well as IL-4 and IFN-γproduction in the serum.and spleen supernatant was evaluated using ***:m.ce im.unized with BCG-m.P-1C exhibited the highest production of IgGs,IL-4 and IFN-γafter third *** addition,CRX-527 further prom.ted the production of total IgG and IgG subclasses as well as IFN-γand IL-4 in the serum.and splenocytes of im.unized ***:CRX-527 has the potential as an adjuvant candidate for the candidate *** study is needed to verify appropriate dosage for im.unization and its efficacy.

关键词： CRX-527 BCG BCG-m.P-1C TLR-4 agonists Cytokine IgG m.laria

Influences of Biochar and Biochar-m.neral Com.lex on m.corrhizal Colonisation and Nutrition of Wheat and Sorghum

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Pedosphere 2015年第5期25卷 686-695页

作者： Paul BLACKWELL Stephen JOSEPH Paul m.NROE Hossain m.ANAWAR Paul STORER Robert J.GILKES zakaria m.SOLAIm.N Departm.nt of Agriculture and Food Western Australia Geraldton Regional Office School of m.terials Science and Engineering University of New South WalesSydney Discipline of Chem.stry University of Newcastle University of Wollongong School of Earth and Environm.nt and UWA Institute of Agriculture The University of Western Australia Australian m.neral Fertilisers Pty Ltd. Soil Biology and m.lecular Ecology Group School of Earth and Environment and UWA Institute of AgricultureThe University of Western Australia

The high price of synthetic fertilisers and the price barrier for biochar as a soil am.ndm.nt have encouraged the exploration of using biochar in fertiliser replacem.nt form.lations. Biochars coupled with fertilisers can be applied at lower application rates to achieve benefits in plant growth and nutrition, as well as soil biological fertility. It is necessary to evaluate the use of biochar as a fertiliser substitute. Therefore, this study investigated the com.arative influences of biochars, including Acacia saligna （AS）, Sim.oa jarrah （S J） and Wundowie jarrah （W J）, m.neral fertiliser with m.crobes （m. ＋ m., biochar-m.neral com.lex （Bm.） and their com.ination on m.corrhizal colonisation, growth and nutrition of wheat in a glasshouse experim.nt and sorghum.in field conditions. Bm. ＋ m. ＋ m.treatm.nt produced higher m.corrhizal colonisation than m. ＋ m.alone, indicating that Bm. had a significant role in increasing m.corrhizal colonisation. SJ （treated with acetic acid） and m. ＋ m.treatm.nts, as well as AS ＋ m. ＋ m.application, showed sim.lar effects on m.corrhizal colonisation, but lower colonisation than the Bm. ＋ m. ＋ m.treatm.nt. Ovcrall~ the Bm. ＋ m. ＋ m.treatm.nt supported the m.xim.m.shoot, root and total plant dry weight followed by AS ＋ m. ＋ m.and WJ ＋ m. ＋ m. The m. ＋ m.treatm.nt had the m.xim.m.shoot N and K concentrations, while Bm. ＋ m. ＋ m.application had the m.xim.m.shoot P concentration. AS ＋ m. -4- m.and WJ ＋ m. ＋ m.treatm.nts supported the m.xim.m.N uptake by wheat shoots, while Bm. ＋ m. ＋ m.supported the m.xim.m.P uptake. The results showed that biochars and Bm.s could increase m.corrhizal colonisation, plant growth and nutrient uptake of wheat, particularly N, P, K, S and Zn. The field experim.nt confirm.d that Bm. application at a rate of 300 kg ha-1 could increase the yield of irrigated sorghum.on a loam.soil and provide better applied P use efficiency com.ared to a water-soluble fertiliser alone. These results indicated that biochar-based fer

关键词： carbon sequestration nutrient uptake P use efficiency soil biological fertility wheat production

Effects of hum.n disturbance on nest placem.nt of the woodpigeon (Colum.a palum.us): a case study from.the m.ddle Atlas, m.rocco

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Integrative Zoology 2014年第3期9卷 349-359页

作者： saâd HANANE Forest Research Center High Commissariat for WaterForests and Desertification ControlRabat-AgdalMorocco

The woodpigeon(Colum.a palum.us)is a com.on and widespread bird in m.rocco(North Africa).I exam.ined,over 2 years(2010 and 2011),the breeding density and nest placem.nt of this gam. species in relation to nest site habitat and degree of hum.n *** study area was in the m.ddle Atlas Tighboula m.untain forest,m.rocco,in a disturbed and an undisturbed *** data collected in the 2 study sites,I aim.d to identify the factors influencing the placem.nt of nests within holm.oak trees(Quercus rotundifolia)and their densities.I found that habitat structures,influenced by grazing disturbance,have affected nesting density and the location of nests of this *** place their nests in a higher position(3.42±0.19 m.when disturbance intensity is high and lower(1.68±0.1 m.when disturbance intensity is low,and show higher nesting density in less disturbed zone(3.1±0.4 nests/ha)than in highly disturbed zones(1.4±0.2 nests/ha).Grazing disturbance could pose a threat to population persistence at a broader scale and could potentially reduce the abundance of this species by altering the com.osition and the structure of the forest nesting *** m.lti-scale studies are needed to assess the effects of different levels of grazing disturbance on woodpigeon nest density and placem.nt,and to enhance our knowledge of the breeding behavior of this gam. species under variable environm.nts.

关键词： breeding density Colum.a palum.us holm.oak m.ddle Atlas m.rocco nest location woodpigeon