2024-03-28T21:30:56Z
https://asejaiqjsae.journals.ekb.eg/?_action=export&rf=summon&issue=466
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Isozymes Variability in Sugar Beet Genotypes Resistant to Root-Knot Nematode, (Meloidogyne javanica)
Saleh
M.S
A.K.
EL-Sayed
M. A.
Ghonema
Nancy
A. Abo Ollo
In Egypt, sugar beet is cultivated in 257667 faddans with an average production of about 18.593 tons per faddan 2007- 2008. Recently, reclaimed desert irrigated lands at West Nubaryia and El-Bostan regions has shown that sugar beet can be successfully grown under sandy soil area condition and is considered as an extended area for sugar beet production in Egypt. The most serious problem against sugar beet extension in new lands is root-knot nematode, Meloidogyne javanica which were reported as major nematode pests of sugar beet in Egypt. Importance of employed resistance nematode sugar beet genotypes (cultivars/hybrids) in infested areas has a great concern. The present study was carried out during the growing season 2007 - 2008 in Sabahia Agricultural Research Station, Alexandria, Egypt to study the activity of three different isozymes (esterase, amylase and peroxidase) in twenty seven sugar beet genotypes had different background in immune behavior (susceptible or resistance) to nematode Meloidogyne javanica to recognized biochemical marker for this trait. To facilitate the choice of resistance ones for planting in nematode contaminated areas and can be used in evaluative purposes breeding programs to identify resistant breeding materials. From the three studied isozymes only peroxidase may differentiate between susceptible or resistant sugar beet genotypes to root-knot nematode.
2009
06
30
146
161
https://asejaiqjsae.journals.ekb.eg/article_3172_bdf1b321a48d3848dd88dc30a1686f39.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Isoperoxidase Activity in Root- Knot Nematode Sugar Beet Resistance Plants
EL-Sayed
A.K
M.S.
Saleh
I. M.A.
Gohar
Nancy
A. Abo Ollo
The present study was carried out in a pot experiment at Sabahia Agricultural Research Station, Alexandria, Egypt, during successive season 2007-2008 for evaluating activity of peroxidase isozymes (isoperoxidase), in sugar beet plants (susceptible and/or resistant), to root-knot nematode Meloidogyne javanica. Sixteen sugar beet (Beta vulgaris L.), genotypes that displayed differential resistance background to root-knot nematode were employed in this work. Computed damage index classified the sixteen genotypes into three categories four genotypes were found to be susceptible (S), eight moderate resistant (MR), and four genotypes resistant (R). Peroxidase isozyme pattern was studied in control and infected plants.Cluster analysis of (susceptible and resistant), genotypes differentiate control and infected plants in two clusters; which mean nematode infection effect on isoperoxidase activity. The cluster analysis differentiated the eight moderate resistant genotypes in three clusters, cluster number one contained five control and one infected plant, cluster number two contained three control and four infected plants, while cluster number three contained three infected plants. It can be concluded that isoperoxidase in moderate resistant genotypes cannot differentiate between infected and control plants.
2009
06
01
162
173
https://asejaiqjsae.journals.ekb.eg/article_3227_ac33af1ecf65f2475b46eb1e732e83ea.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Evaluation of New Yellow Inbred Lines of Maize Via Line X Tester Analysis over Two Different Locations
Abd El-Hadi
A.H.
K.S.
Kash
A.A.
El-Shenawy
I.A.
El-Gazzar
Twenty six new inbred lines of yellow maize were top crossed with three testers i.e. homozygous inbred line Sk 8008 and heterozygous i.e. SC Sk 74 and Comp-Sk 21 during 2005 growing season at Sakha Agricultural Research Station. The resultant 78 top crosses and the two check SC 155 and SC 3084 were evaluated during 2006 growing season at the two locations, Sakha and Sids Agricultural Research Stations. The mean squares of locations were found to be highly significant for all studied traits except for No. of kernels/row. Significance for mean squares due to lines, testers and line x tester interaction was detected for all studied traits except of L x T for plant height and number of kernels/ row. The interactions between L x Loc. and T x Loc., proven to be were significant for all studied traits except for number of kernels/ row for the two sources and No. of rows/ear for T x Loc. The interaction between L x T x Loc. was insignificant for all studied traits except of ear diameter. Additive genetic variance was more important component than the non-additive genetic variance in the inheritance of silking date, plant height, ear height, ear length, ear diameter, number of rows/ear and weight of 100 kernels, while, the non-additive genetic variance played the major contribution in the inheritance of grain yield and number of kernels/row. Positive and significant phenotypic and genotypic correlations among most pairs of studied traits were recorded , except for silking date with No. of rows/ear, ear height with No. of rows/ear, ear length with ear diameter and No. of rows/ear and No. of rows/ear with weight of 100 kernels. The best three way crosses were Sk 5001/6 x SC Sk 74 (34.5 Ard./Fed.) and SC Sk 5001/50 x Sk 8008 (33.63 Ard./ Fed.) were higher for grain yield that of the commercial hybrids SC 155 (31.32 Ard./Fed.) and SC 3084 (32.29 Ard./Fed.), suggesting that these crosses are fruitful for using in future in maize breeding programs. Significant and desirable GCA effects were exhibited in Sk 5001/6, Sk 5002/9, Sk 5005/12, Sk 5005/16, Sk 5001/50 and Sk 7070/62 for grain yield and other studied traits.
2009
06
01
174
186
https://asejaiqjsae.journals.ekb.eg/article_3228_0e5c16350a81e6cfbfe6adb0c57664f9.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Antimicrobial Activity of Sheep Yoghurt Prepared by Different Commercial Starter Strains
Khaled
El-Zahar
The antimicrobial activities of sheep milk yoghurt prepared by different starter strains were evaluated against different pathogenic microbial strains using different techniques. Sheep yoghurt prepared with LAB starters YC-183 and probiotic starter ABT-3, manifested anti-Staphylococcus aureus activities. Most antimicrobial activities were associated with yoghurt soluble proteins fraction and originating from high molecular weight peptide fragments (more than 3000 Dalton) if the milk yoghurt was pretreated at 85ºC / 10 min, but from low molecular weight peptides (lower than 3000 Dalton) if the milk used was pretreated at 96ºC/ 5 min. Yoghurt prepared by all starter cultures exhibited antimicrobial activity against E.coli HB101. This activity was more pronounced in the casein fraction of the yoghurt prepared after heating at 96ºC/5 min especially those prepared with ABT-3 culture. Comparable or slightly lower activities were associated with soluble protein fractions separated from different starter-yoghurt prepared from sheep milk preheated at 85ºC/10 min which loosed their activities after ultrafiltration through 3000 Da membrane. This inhibitory action was particularly evident against Staphylococcus aureus and E. coli HB101. An antibacterial peptide against E. coli which generated from β-casein by the proteolytic system of starter culture of yoghurt was isolated and this peptide has a molecular weight 4.6KDa.
sheep milk
yoghurt proteins
bioactive activity
Antibacterial peptides
Pathogenic bacteria
2009
06
01
187
197
https://asejaiqjsae.journals.ekb.eg/article_3231_58a898a2f4e42cdc5c01880bbf385562.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Accelerated Ripening of UF Feta-Cheese by Using Freeze-Shocked Culture of Lactobacillus helveticus or Barley Extract
Khaled
Meghawry El-Zahar
The effect of using freeze-dried shocked culture or barley extract in the manufacture of UF Feta-cheese made from ultrafiltreted retentate containing different levels of either barley extract at ratio of 0.05% and 0.1% respectively, or freeze-shocked culture of L. delhrueckii subsp. helveticus at ratio of 1% and 2% respectively, on ripening process and quality was studied. Addition of barley-extract did not significantly affect the moisture, fat, total nitrogen or salt content of the resultant cheeses, but significantly increased its acidity, while the incorporation of the freeze-shocked starter cultures had no significant effects on the gross chemical composition of cheeses. These additives significantly increased the formation of soluble nitrogenous compound, free volatile fatty acids, flavour intensity and improved the body and texture characteristics of UF Feta cheese. Especially the cheese made with 0.1% barley extract and 0.2% of freeze-shocked starter cultureof L. delhrueckii subsp. helveticus which resulted in higher quality after 15 - 30 days of ripening than the other treatments. Microbial counts during preservation of both types of cheese increased steadily and reached similar levels, with the exception of Coliform-bacteria. All types of cheese produced with barley extract or freeze-shocked culture as a starter were approved and accepted by the panel during the preliminary sensory evaluation compared to commercial feta- cheese.
UF Feta-cheese
ripening acceleration
barley extract
Lactobacillus helveticus and cheese quality
2009
06
01
198
204
https://asejaiqjsae.journals.ekb.eg/article_3232_b63b8b616b042b12e61040999fdd39fa.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Evaluation of Some Crop Yield Response Functions
Saleh
M.
A.M.
Abdulaziz
R.
Wardlaw
This study provides an evaluation of a number of crop yield response functions. The relative sensitivity of each function in application with the same water stress has been assessed. The coefficients for each function were derived from the linear relationships between relative yield and relative evapotranspiration as described by Doorenbos and Kassam (1979), The data showed that the stage-by-stage results are approximately the same using all functions. When using published crop yield coefficients, all functions gave approximately the same results.
Crop yield
Water deficit
Soil water stress
2009
06
01
205
213
https://asejaiqjsae.journals.ekb.eg/article_3233_90a00ed8c88c32ae5380313d1295bdbd.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Land Evaluation of Old Irrigated Soils in North Delta Region (Rewena Canal Area) at Kafr El Sheikh Governorate
Zamil
B.A
M.A.
Abd Allah
G.M.
Abd El-Salam
Quantified land evaluation of soils at Kafr El–sheikh governorate in north delta was carried out. These soils represent the area of Rewena canal and located between Kafr El–Sheikh and Sidi Salem district. Land capability and suitability for different crops was made through defining and determining soil physical, chemical properties and environmental properties as well as nutrients status. The quality of irrigation water was also determined as well as climatic data. ASLE program (Applied System of Land Evaluation) was used for calculating land capability and there suitability for different vegetable, crops and fruits with a total of 28 plants. Results indicate that the studied area was classified into two land capability classes: class 2 (good) and class 3 (faire). Limitation factors for land capability were the relatively low soil permeability, shallow ground water table in some parts, the relative increment of soil salinity in others, as well as ground water salinity and low levels of soil organic matter and nutrients especially NPK. Concerning land suitability, different crops can be grown in these soils except pepper, Olive, Fig and Peanut, while the suitable crops could be arranged by preference as: Barely < Wheat < Sugar beet < Sunflower < Cotton <Rice.
2009
06
01
214
228
https://asejaiqjsae.journals.ekb.eg/article_3234_f7dbb4224a66661fa89234cb6127e441.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Correlation Study between Some Agronomic Characteristics of Plant Crop of Some American Wild Cane under Egyptian Conditions
Gaber
A.A.
M.F.
Abo El-Fatth
A complete randomized block experiment with three replications was carried out in El-Sabahia Agricultural Research Station at Alexandria to evaluate some American wild cane varieties during 2005/2006 season. The wild cane varieties were Hinds Special, S.E.S.90, Saccharum spontaneum and U.S.57-118-4. Ten stalks were chopped at random from each plot after topping at the end of flowering to study the relationship between stalk length and width; tillers number; internodes length, number; leaf length, width, number and total soluble solids. The studied traits differed with the variation of varieties. The correlations between the studied criteria were positive, significant and highly significant in some traits i.e. and were not significant in other traits i.e. However, the correlations between any two of the four varieties were positive, significant and highly significant in the most studied characters.
2009
06
01
229
234
https://asejaiqjsae.journals.ekb.eg/article_3235_18cad63e941f240ecc6b6ef68a59e5ec.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Scheduling Trickle Irrigation Using Soil Matric Potential for”Le Conte” Pear Trees Planted in Calcareous Soils
Abd El-Messeih
W.M
R.W.
El- Gendy
The present research was carried out in 2007 and 2008 years on 6 years old of "Le Conte" pear trees grafted on communis rootstock and grown in calcareous soil at Burg El-Arab region, Alexandria Governorate. The objective of this work was to investigate the effect of three irrigation rates based on soil matric potential measurements, which was as: (T1): high irrigation rate (-300 to -500 mbars), (T2): medium irrigation rate (-500 to -820 mbars) and (T3): low irrigation rate (-820 to -1762 mbars), on: vegetative growth, leaf chemical content, yield, fruit quality and water use efficiency (WUE). The main results of this work can be summarized in the following points: - Trees grown under (T1) ( from 100 to 80% of A.W), were significantly produced high shoot length, shoot diameter, leaf area fruit yield, high fruit quality ( F. length, diameter & weight) and gave higher water use efficiency (WUE). Also, these trees gave the highest leaf mineral composition (N, P, K, Ca, Mg, Fe, Mn & Zn) and leaf total chlorophyll followed by (T2) ( from 80 to 60% of A. W) & (T3) ( from 60 to 40% of A.W) for the two seasons. - On the other hand, trees grown under (T3) produced significantly high leaf free proline with fruits of highest firmness, acidity%, TSS% and total sugars% followed by those grown under (T2) and (T1) respectively, in the two studied seasons. - Based on the above general results, the irrigation treatment (T1) is recommended for the irrigation of "Le Conte" pear trees planted in calcareous soil at Burg El- Arabe region (Egypt) using the trickle irrigation system scheduled via the soil matric potential measurement using tensiometers.
scheduling irrigation
Trickle irrigation system
Soil matric potential
pear trees
leaf mineral composition
water use efficiency
2009
06
01
235
247
https://asejaiqjsae.journals.ekb.eg/article_3236_3abae67af65c9fd72da46db555e52cc1.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Effect of Irrigation and Fertilizers on Diseases Incidence and Agronomic Characters of Sunflower in El- Behera Governorate
Morsy
S.M
Elham
A.D.
Abd-Elbaky
A.A
Field experiments were conducted to determine the effect of irrigation intervals combined with different types of fertilizers on the incidence of damping-off and charcoal-rot, percentage of fungi in rhizosphere and rhizoplane, yield and oil content of sunflower. Application of irrigation intervals combined with different types of fertilizers significantly affected incidence of diseases and density of fungi in the soil. The irrigation at 20 days intervals combined with gypsum as a fertilizer, significantly decreased incedence of damping-off and charcoal–rot diseases 4.66%, and 31.66%, respectively, followed by the same irrigation treatment combined with phosphoren 5.66% and 38.31%, respectively in the two successive growing seasons 2007 and 2008. The irrigation interval treatments combined with farmyard manure stimulated the growth of some fungi in the rhizosphere and rhizoplane of sunflower plants compared to other fertilizers. Meantime, gypsum as fertilizer application under the irrigation intervales conducted decreased the percentage of micro-organisms in rhizosphere and rhizoplane, 42.8% and 40.8%, respectively, compared with other fertilizers. Penicillium sp < /em>. and Fusarium sp < /em>. were the dominant fungi in all tested rhizosphere and rihzoplane samples of sunflower. Also, irrigation at 20 days intervales combined with each fertilizers improved sunflower growth, yield and increased oil as well.
2009
06
01
248
256
https://asejaiqjsae.journals.ekb.eg/article_3237_8ab2868c626eae05959a9d27465d2611.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Evaluation of Chemical Control in A Rotational Program Against Whitefly on Tomato Crop
Farida
A.Ayad
H.S.
Taha
A. F.E.
Afsah
S.A.G.
Metwally
Sherif
Ayoub
A chemical control program against Bemisia Tabaciwas applied after treatment of tomato seedlings variety Rover F1 hybrid in the nursery using thiamethoxam and imidacloprid. In addition, six treatments with different rational and conventional insecticides in a rotational program have been applied at Syngenta Kaha Station, Kalubia Governorate, Egypt. Two treatments were sprayed according to the proposed economic threshold (less than one adult per compound leaf) rotationally. Another two treatments were sprayed periodically every 6 days without taking into consideration the degree of infestation. The last two treatments were used as block application and sprayed every 6 days twice using the same chemical.The results showed that the best treatment was the block application, in the sequence of thiamethoxam, lambda-cyhalothrin, pymetrozine, pyriproxyfen and imidacloprid, fenpropathrin, pyriproxyfen, pymetrozine. They gave the highest efficacy on the adults of whitefly and obtained high yield of tomato crop. Regarding the virus infestation, both treatments showed the least number of infested plants with minimal surfaces of viral symptoms. The present study suggests that block application was a good rotational program in reducing the number of chemicals and reducing the hazard of pesticides to the environment.
2009
06
01
257
264
https://asejaiqjsae.journals.ekb.eg/article_3238_b157deb8bacdff14b31703a6c8366697.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Insecticides Rotation Strategy for Controlling Bemisia Tabaci (Genn.) on Tomato Crop
Farida
A.Ayad
H.S.
Taha
A. F.E.
Afsah
A.R.I.
Hanafy
S.A.G.
Metwally
Sherif
Ayoub
Insecticides rotation strategy was applied after treatment of the seedlings of tomato variety Rover (E-446) F1 hybrid in the nursery using thiamethoxam and imidacloprid (foliar and drench application) for the control of Bemisia Tabaci. Twelve treatments with biorational and conventional insecticides in a rotation programs was applied at Syngenta Kaha Station, Kalubia Governorate, Egypt. The best treatment was seedlings treated with thiamethoxam at 30g/20000 seedlings as drench application in the nursery and a sequence of thiamethoxam, twice fenpropathrin, and twice pymetrozine in open field. It gave good results for controlling the adults stage of B. tabaci and minimized the number of infected plants and percent surface area showing virus symptoms. Also, the highest yield of tomato was obtained after five sprays during the season. The present study suggests that drench application in the nursery was a good treatment in reducing and delaying attacks by B. tabaci.
2009
06
01
265
273
https://asejaiqjsae.journals.ekb.eg/article_3239_b6a30834a8d54cb0b716dcbeceb4793c.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Diallel Analysis of Five Tomato Cultivars and Estimation of Some Genetic Parameters for Growth and Yield Characters
Solieman
T.H.I.
Five commercial tomato (Lycopersicon esculentum, Mill) cultivars and their ten F1 hybrids, in a diallel cross system without reciprocals, were used in this study to detect the general performance, and to estimate heterosis percentages relative to mid parents, potence ratios, general -and specific- combining ability, and heritability percentages in broad and narrow senses for some important characters. The obtained results reflected generally that the used parental cultivars appeared to have wide ranges of variabilities in the various studied characters and their detected differences were found significant in the most cases . The general performances of the F1 hybrids of some characters reflected the presence of partial-to over-dominance, but with different magnitudes. On the other hand, some other studied characters suggested the presence of partial-to under-recessiveness with different degrees. Positive and desirable heterotic effects were reflected on the performances of most of F1 hybrids for certain characters. On the contrary, negative heterotic effects (undesirable) were also detected on some F1 hybrids for some other characters. The obtained results reflected also that both additive and non-additive gene effects contributed ,with different degrees, to the basic genetic mechanisms involved in the inheritance of all studied characters. However, the non-additive gene effects seemed to be relatively more important than those of the additive effects. These results were also confirmed by the high estimates of ơ2sca relative to those of ơ2gca, the estimated values of potence ratios, and the estimates of both broad-and narrow-sense heritability. The results indicated also that a particular cultivar or hybrid can not be used to evaluate all studied characters with equal efficiency. However, the best general combiner parent that appeared to have the significant highest positive value of G.C.A. was found to be cultivar ''Super Marmand'' (for the characters plant height ,number of branches per plant and total soluble solids), cultivar ''Peto-86'' (for the characters plant height to the first flower , number of flowers per cluster ,number of fruits per plant and fruit shape index), cultivar ''Edkawy'' (for the characters fruit weight ,fruit diameter ,fruit length and fruit locules number), and cultivar ''Super Strain-B'' (for the character total fruits weight per plant). The results indicated also that the best hybrid combinations were C x M (for the plant heigh), S x E (for the four characters number of branches per plant, plant height to the first flower , number of fruits per plant ,and total fruits weight per plant), C x P (for the characters number of flowers per cluster and fruit shape index), M x E (for fruit weight), S x M ( for the fruit length character) , P x S( for fruit diameter and number of locules per fruit characters), and the cross P x M (for total soluble solids).
2009
06
01
274
288
https://asejaiqjsae.journals.ekb.eg/article_3240_20a8ed9aaa5010edf0f1f675f11fd68b.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Evaluation of Twenty Seven Sugar Beet Genotypes for Resistant to Root- Knot Nematode, (Meloidogyne Javanica)
Saleh
M.S.
A.K.
EL-Sayed
I. M.A.
Gohar
Nancy
A. Abo Ollo
Sugar beet has been commercially introduced in Egypt since 1982 with cultivated area about 20,000 feddans and increased gradually to be 25,7667 fed. in 2008. The plan is to increase the sugar beet area and beet sugar factories to fill the gap between sugar consumption and production which reaches about one million tons a broadly imported every year. Recently, reclaimed desert irrigated lands at West Nubariya and El-Bostan regions has shown that sugar beet can be successfully grown under sandy soil area condition and it's considered as the extended area for sugar beet production in Egypt. The root-knot nematode, (Meloidogyne incognita and M.-javanica), is the most serious problem against sugar beet expansion in the new arable lands which was reported as major nematode pests of sugar beet in Egypt. The present study was carried out during the growing season 2007 - 2008 at pots experiment in Sabahia Agricultural Research Station, Alexandria, Egypt, for evaluating the reaction of twenty seven sugar beet genotypes against the most serious nematode, (Meloidogyne javanica). The twenty seven sugar beet genotypes used in this test were 21 commercial varieties and 6 breeding materials. Computed damage index classified the twenty seven sugar beet genotypes into four categories one commercial variety was highly susceptible (HS), nine genotypes were susceptible (S), thirteen genotypes moderate resistant (MR), and four genotypes resistant (R), three of them are commercial varieties while the best one in computed damage index was proven to be the breeding material (Eg.27).
2009
06
01
289
298
https://asejaiqjsae.journals.ekb.eg/article_3241_469160663e9bd9536b5790f168905338.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Assessment of Soil Limiting Factors Effect on Land Productivity at Wadi El-Faregh Area, West of Delta, Egypt
Mohamed
E. A. Khalifa
Agricultural expansion in Egypt is the central tool to maximize agrarian production. Generally, agricultural development has multiple mechanisms and sequent procedures in which land evaluation has the superiority. The major concept of land evaluation is to assess limiting qualities of land capability for maximum land utilization through land use planning. This study aimed at evaluating the influence of soil limiting characteristics on its productivity in a newly reclaimed area at Wadi El-Faregh area. Studied area which extends over 3000 feddans was surveyed by digging forty five soil profiles representing current farms and dominant problems. The soil could be classified as Typic Torripsamments, Lithic Torripsamments and Typic Quartzipsamment with differentiating seven soil mapping units differ in profile depth, soil salinity, lime content and soil texture. Field investigations showed that 66.3% of the studied area has deep profile, while shallow depth covers only 5.7% of the area. Sandy loam soil texture is dominant over 61.1% of the area, and the rest of area has either sand or sandy clay loam texture. Most of the area considered non to moderately saline, while only 10.7% is salt affected. The studied area is non calcareous to moderately calcareous over 83.6%, while 16.4% of the area has high lime content. Gravel content is negligible except for some limited sites over 3.5% of the area having moderate surfacial gravels. Well water samples have relevant quality for agricultural purposes except for well no. 6 and 7 which were affected slightly with salts. Limiting properties of land capability may be concluded as dominant sand content, shallow profile depth at some sites, salt and/or lime some affected sites and poor fertility status. The studied area is evaluated as order "Suitable" and classified into two capability classes; "Fair" representing 83.6% as productivity index ranged between 41.0 – 57.3%, and "Poor" extending over 16.4% of the area with productivity index varied from 29.5 – 35.9%. Best recommended winter crops are wheat, barely, alfalfa and faba bean, while in summer they are sorghum, sunflower and peanut. Seven different fruit trees are suitable in the studied area with the following sequence: date palm, olive, grape, apple, citrus, pummel and guava.
Land evaluation
Land productivity
Limiting factor
Wadi El-Faregh
2009
06
01
299
308
https://asejaiqjsae.journals.ekb.eg/article_3242_d4590a9e96aace705c49be817f31959e.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Impact of Lead Toxicity on Germination, Plant Growth, Yield and Metal Uptake in Radish Plants
Elkhatib
H.A.
The effects of lead on radish plants (Raphanus sativus L.) were investigated to understand the impact of leadaccumulation on seed germination, plant growth and yield. Two germination and pot experiments were carried out during the 2006 and 2007 seasons,at the Faculty of Agriculture, Damanhour Branch, Alexandria University. Seeds and plants were treated with different concentrations of Pb: 0, 100, 200 and 300 ppm. Pb contents in both root and shoot tissues gradually increased with increasing the applied Pb concentration. More lead was accumulated in root tissues than in shoot tissues. The higher concentration of lead (300 ppm) caused a significant decrease in seed germination, plant height, leaves fresh and dry weights, leaves area and yield of (Raphanus sativus L.) Two polynomial quadratic equations were established to express the response of radish yield to Pb contamination. The experimental yield values and the corresponding calculated values were not significantly different as tested by high values of correlation coefficient.
2009
06
01
309
318
https://asejaiqjsae.journals.ekb.eg/article_3243_812c26f0d78cfa15fea3d9467a054108.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Growth and Yield of Common Bean (Phaseolus Vulgaris L.) in Response to Rhizobium Inoculation, Nitrogen and Molybdenum Fertilization
Elkhatib
H.A.
Two field trials were carried out in two successive growing seasons of 2006 and 2007 at Elbehara Governerate - Faculty of Agriculture to study the combination effects of seed inoculation (with Rhizobium and without), nitrogen fertilization with (0, 48, 96 kg N/ha) and foliar molybdenum application(0 and 30 μg Mo/l as sodium molybdate) on plant height, branch number, plant fresh weight, plant dry weight, average number of green pods per plant and green pods yield ha-1 as well as nitrogen and molybdenum contents in leaves of bean plants Giza3. The highest values of all investigated parameters were obtained with a combination of seed inoculation, molybdenum application and nitrogen fertilization of 96 kg N/ha. Polynomial quadratic models were developed and used to describe green pods yield responses. Four polynomial equations were established to express the relationship among green pods yield and application rate of N fertilizer, molybdenum fertilization and Rhizobium inoculation for each season. The calculated yields in the two seasons closely approximate experimental yields as evidenced by the highly significant value of coefficient of determination (R2).
2009
06
01
319
332
https://asejaiqjsae.journals.ekb.eg/article_3244_fe9e38fe146d2dd8d103311f2136a853.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Use of Internet by Female Students Special Householding and Home Management in Faculty of Home Economics Riyadh City and Their Benefit Regarding Some Requirements of Their Curriculaum
Laila
Amer Al Qhtani
This research aims primarily to the study and the use of female students, special house holding and home management in faculty of home economics in Riyadh city, for the internet and the degree of benefit in fulfilling some requirements of curricula.
The research comprises all female students from research sample which is 200 interviewees, and evaluating the questionnaires that were already collected through interviewing. The research leads to the following results:
1. The age of the majority of interviewees fall in the category of 19 to 20 years, and 96% of them own a computer, 90% of them use internet at their homes, and 73% of them have experience between 3 and 8 years in using internet. On the other hand, recreation sites were on the top of those sites the interviewees use.
2. The majority of interviewees (92.5%) use the internet as means of recreation. They also use seven procedures for the security, among of them are anti-virus procedure.
3. The interviewees use internet in fulfilling some requirements of curriculum according to their specialization. Most of the curricula are house burnishing and decoration (52%) and the house interior design (51.5%).
2009
06
01
86
96
https://asejaiqjsae.journals.ekb.eg/article_158806_f66beac995a98b13fb8f831b50678539.pdf
Alexandria Science Exchange Journal
1110-0176
1110-0176
2009
30
APRIL- JUNE
Prospectives of Agricultural Extension Among Rural Debtors and Non Debtors Women’s from Agricultural Credit and Development Bank for Execute Heifer Development Project in Some Villages in El-Beheira Governorate
Amel
Fayed
This research aims mainly at studying prospective of agricultural extension among rural debtors and non debtors women’s from Agricultural Credit and Development Bank to execute heifer development project in some villages in EL-Beheira governorate . This research was conducted in Abies village in Kafr Eldwar distract and Dybono village in Edco distract in El- Behira governorat.
A random sample consisted of 150 respondants representing debtors women and anothers 150 non debtors women was slected and the research data were collected through personal interview questionnaire prepared for this purpose. Several statistical methods were used in analyzing and presenting data such as: percentages, repeating tables, simple correlation, regression analysis.
The most important findings are as follows:
1- 70٪ ‚58٪ of debtors and non debtors respondents have positive and neutral attitudes levels to small project generally.
2- 82٪ of debtors respondents have low and moderate congnitive and executive levels to heifer development.
3- There is a significant correlation between the congnitive and executive levels to heifer development and and 5 independent variables i.e. age‚ educational level‚ exposure to multimedia‚ the degree of leadership and farm size.
4- There is a significant correlation between attitudes levels to small project of debtors and non debtors respondents and 4 independent variables i.e. age‚ educational level‚ exposure to multimedia‚ and cosmopolietness.
5- The previous five independent variables explained about 23.465٪ of variance in the cognitive and executive levels to heifer development .
6- Major problems facing debtors respondents in executed heifer development project were : there is no extension training programs and rations are not available.
2009
06
01
97
110
https://asejaiqjsae.journals.ekb.eg/article_158807_e69cf327ed8d61ee67276ec26897c1fc.pdf