Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
03
01
Response of Some Peanut Genotypes to Phosphorus Fertilization Levels Under New Valley Conditions
1
9
EN
A.
Abd El-Monem
Agronomy Department, Faculty of Agriculture, New Valley Branch, Assiut University. Assiut, Egypt.
M.
T.
Said
Department of Agronomy , Faculty of Agriculture, ِِAssiut University, Asyut, Egypt
mtharwat@aun.edu.eg
10.21608/ajas.2018.7763
A field experiment was conducted at Faculty of Agriculture Farm, Assiut University, New Valley branch during 2015 and 2016 summer season to study the response of five peanut genotypes to phosphorus fertilization levels. This experiment was laid outin arandomized complete block design (RCBD) in a split plot arrangement with three replications. Phosphorus levels (P) were distributed randomly on the main plot and peanut genotypes at sub plot. The obtained result show that peanut plants fertilized with 45 kg fed.<sup>-1 </sup>P<sub>2</sub>O<sub>5 </sub>significantly gained the highest mean values of most studied traits in the two growing seasons. Furthermore, peanut genotypes had a significant effect on most studied traits in both seasons. Thus, L35 peanut genotype surpassed the others tested genotypes in most studied traits in both seasons. Moreover, the highest mean values of seed yield and oil yields were obtained from45 kg fed.<sup>-1 </sup>P<sub>2</sub>O<sub>5</sub> and L35 peanut genotype surpassed all other genotypes in seed and oil yields in both seasons.
Peanut Genotypes,phosphorus fertilization,New Valley Conditions
https://ajas.journals.ekb.eg/article_7763.html
https://ajas.journals.ekb.eg/article_7763_7de31ef866dc59852d6cd7a53506574f.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
03
01
Effect of Yeast Rates and Potassium Fertilization on Yield and Quality of Some Sugar Beet Varieties
10
26
EN
E.
A.
Teama
Agronomy Dept., Fac. Agric., Assiut Univ., Egypt
G.
R.
El-Nagar
Agronomy Dept., Fac. Agric., Assiut Univ., Egypt
E.
A.
Ali
Agronomy Dept., Fac. Agric., Assiut Univ., Egypt
T.
A.A.
Ahmed
Agronomy Dept., Fac. Agric., Assiut Univ., Egypt
10.21608/ajas.2018.8046
A field experiment was conducted at the Agronomy Department Experimental Farm, Agriculture Faculty, Assiut University, Egypt. During 2015/2016 and 2016/2017 seasons to study the effect of yeast rates and potassium fertilization on yield and quality of some sugar beet varieties. The experiment was laid out in randomized complete block design (RCBD) using strip split plot arrangement with three replications. Yeast foliar application rates (0,1,2 and 3 kg fed.<sup> -1</sup>) was arranged horizontally, while potassium fertilization levels (12.5, 25 and 37.5 kg K<sub>2</sub>O fed.<sup>-1</sup>) were distributed in vertically, as well as sugar beet varieties (kawemira, Romulus and Glorius) were arranged in sub plots. The obtained results revealed that yeast foliar application at the rate of 3.0 kg wet yeast fed.<sup>-1</sup> recorded the highest significant mean values of root length, root diameter, single root weight, root yield fed.<sup>-1</sup>, pol percentage, sugar recovery percentage and recoverable sugar yield (ton fed.<sup>-1</sup>) traits in the two growing seasons. Furthermore, the obtained results detected that the studied potassium fertilization levels had a significant effect in the all studied traits in the two growing seasons in favor of 37.5 kg K<sub>2</sub>O fed.<sup>-1</sup>. Here too, kawemira sugar beet variety gave the highest mean values of previous traits in both seasons. In addition, the obtained results revealed that the all first and second order interactions involved in this respect had a significant influence on all studied traits. Moreover, kawemira sugar beet variety which sprayed with 3 kg yeast fed.<sup>-1</sup> and fertilized with 37.5 kg K<sub>2</sub>O fed.<sup>-1</sup> produced the maximum mean values of all studied traits in both seasons.
Sugar beet,potassium fertilization,yeast levels
https://ajas.journals.ekb.eg/article_8046.html
https://ajas.journals.ekb.eg/article_8046_82b5ce729b8dcda0fa44869718f48a23.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
04
12
Impact of Plant Spacing and Weed Control Treatments on Yield, Quality of Soybean (Glycine Max L.) and Associated Weeds Characters under Middle Egypt Conditions
27
46
EN
A.
S.M.
Morsy
1Department of Agronomy, Faculty of Agriculture and Natural Resources, Aswan, Uni-versity, Aswan 81528, Egypt.
drahmed1122@yahoo.com
M.
M.
Tantawy
2Plant Protection Department, Faculty of Agriculture, Minia University, Minia, Egypt.
10.21608/ajas.2018.8086
The present study was carried out on soybean<em> var</em>. Giza 111 atthe Experimental Farm of Faculty of Agriculture, El-Minia University during the summer seasons of 2015 and 2016, to study the impact of plant spacing and weed control treatments on weed control, yield and quality of soybean. The treatments include rows and plant spacing (density) as P<sub>1</sub>: 60×4cm (175000 plant fed<sup>-1</sup>), P<sub>2</sub>: 60×5cm (140000 plant fed<sup>-1</sup>), P<sub>3</sub>: 70×4cm (150000 plant fed<sup>-1</sup>) and P<sub>4</sub>: 70 × 5cm (120000 plant fed<sup>-1</sup>) and 10 weed control treatments (W<sub>1</sub>: Gesagard 50% FW at 1 L fed<sup>-1</sup>,W<sub>2</sub>: Fusilade super 12.5%EC at 1 L fed<sup>-1</sup>, W<sub>3</sub>: Gesagard 50%FW+ Fusilade super 12.5% EC,W<sub>4</sub>:Stomp 50%EC at 1.7 L fed<sup>-1</sup>,W<sub>5</sub>: Stomp 50%EC + Select-super 12.5% EC at 1 L fed<sup>-1</sup>, W<sub>6</sub>: Select-super 12.5%EC, W<sub>7</sub>: Stomp 12.5%EC+ one hand hoeing, W<sub>8</sub>: hand hoeing twice, W<sub>9</sub>: unweeded check and W<sub>10</sub>: weed free for whole seasons. This study was carried out in a strip-plot design with three replications. Results showed that increasing of soybean plant density by sowing in the narrow ridge (60 cm) and plant space (4 cm between hills) caused a significant reduction in fresh and dry weight of weeds at 60 days after planting (DAP), compared to wider plant spacing in both seasons. The narrow spacing 60×4 cm led to a reduction in dry weight of total weeds by 26.62 % and 22.90 % and increased soybean seed yield by 5.31% and 4.92% in 2015 and 2016 seasons, respectively. All weed control practices reduced the fresh and dry weight of total weeds, compared to the unweeded check in both seasons. Yield of seeds in unweeded check plots was decreased were about 43.18 and 42.69% due to about 3.5 and 3.3 ton fed<sup>-1 </sup>fresh weight of total weeds in 2015 and 2016 seasons, respectively, compared to weed free for whole season. Protein and oil% of soybean seeds were decreased by (10.56 and 10.60%) and (18.23 and 18.05%) in 1<sup>st</sup> and 2<sup>nd</sup> seasons, respectively due to the weed interference. The interaction effect between plant spacing, 60×4 cm (P<sub>1</sub>) and weed free followed plant spacing P<sub>1</sub> and weed control by Stomp 50%EC + one hand hoeing (W<sub>7</sub>) gave the best weed control efficiency (WCE) 78.9 and 81.0% in 2015 and 2016 seasons, respectively as well as superior in seed yield of soybean and net return.
Soybean,plant spacing,herbicides,weed control treatments,seed quality,WCE,WI
https://ajas.journals.ekb.eg/article_8086.html
https://ajas.journals.ekb.eg/article_8086_feba285c5c197a95e918fe6852d5c1f1.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
04
25
Assessment of Reproductive Performance and Flock Composition of Small-houlders Sheep and Goat Production Systems Under Assiut Governorate
47
55
EN
H.
A.
Daghash
Department of Animal Production, Faculty of Agriculture, Assiut University
daghashhassan@yahoo.com
M.
N.M.
Abd EL-Ati
Department of Animal Production, Faculty of Agriculture, Assiut University
M.
A.M.
Ebrahim
Department of Animal Production, Faculty of Agriculture, El-Azhar University
M.
Abd El-Maneim
Department of Animal Production, Faculty of Agriculture, Assiut University
10.21608/ajas.2018.8156
This study was aimed to recognize the reproductive performance and herd composition of sheep and goat in six studied area located in east and west river Nile at Assiut governorate. A set of semi-structured questionnaire was used to collect information from 300 sheep owners based on single-visit-interviews. The study revealed that farmers keep mixed livestock species. Sheep and goat production are the major livestock activity in located study area. The average farm size of households surveyed in Assiut Governoratewas 8.2 feddan. The farmers cultivated 50.74% and 50.86 % of their lands for green fodder and field crops in winter and summer, respectively. About 50.89 % of the total farm size area cultivated with animal fodder around the year. In summer 25.37%. Of the area was cultivated with field crops. The reproductive and productive performance of sheep and goats were discussed and data showed that, no significant differences were observed in lambing interval and age at first lambing between sheep and goats, while goats were significantly higher in litter size (P<0.01), lambing mortality (p<0.05) weaning weight (p<0.01) and age at marketing (p<0.05) than sheep. Generally, Sheep and goat production in the studied areas was constrained by different problems; where the major ones are availability and cost of feeds, limitation of land for the expansion of production and poor extension services. Sheep and goats are very important smallholder producers due to their biological factors such as short generation interval, twinning, short growth periods, do not require much space and low food requirements. In this domain, reasons of high lamb mortality rates should be identified and reduced in order to make sheep and goat production profitable and sustainable.
Herd composition,reproductively,sheep,Goat,Smallholders
https://ajas.journals.ekb.eg/article_8156.html
https://ajas.journals.ekb.eg/article_8156_17d06ed8739000ff6777ffb3c88addbc.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
03
01
Effect of Enzymatic Treatments on Physico-chemical Properties and Quality of Juice and Syrup of Some Date Fruits
56
68
EN
B.
R.
Ramadan
Food Sci. and Tech. Dept., Faculty of Agric., Assiut Univ.
bramadan1958@yahoo.com
Magda
A.A.
Seleim
Food Sci. and Tech. Dept., Faculty of Agric., Assiut Univ.
E.
A.
Abdel-Rahman
Food Sci. and Tech. Dept., Faculty of Agric., Assiut Univ.
Samar
Abd Allah
Food Sci. and Tech. Dept., Faculty of Agric. New Valley branch, Assiut Univ.
10.21608/ajas.2018.7904
This work aims to benefit from low quality fruits (of Saidy, Tamr and Manthor dates) by the production of enzymatically treated syrup with high quality value. From the chemical analysis, the total and reducing sugars were the predominate components in all studied date fruits varied from 50.5 to 81.8% and from 40.5 to 57.7% dry weight basis (dwb), respectively. The total acidity (as malic acid) of the studied date fruits ranged from 0.14 to 0.22%.<br /> <br /> The effect of different concentrations of pectinase enzyme, 0.5-2.0 % on the efficiency of date juice extraction process and physico-chemical proprieties of the obtained date syrup were studied. The enzyme treated date juices recorded the lowest values of viscosity, turbidity and color ( as absorbance at 520 nm), with the highest values of clarity compared with that of the untreated (control) samples. The results indicated that using 1% concentration of pectinase for 60 min at 50 °C gave a good result in terms of clarity, color and turbidity, but the recovery of total soluble solids was the highest after 90 min incubation time. The color values (as optical density at 420nm) of the enzyme-treated date syrups, Saidy, Tamr and Manthorranged from 0.499 to 0.574 compared with that of untreated date syrups which varied from 1.069 to 1.495. The treated Saidy date syrup had the highest clarity value followed by Tamr and Manthorsyrups. From the obtained results it can be concluded that the enzymatic treatments could be used to produce date syrup (Dibs) with good properties and high quality from second grade date fruits.
Low quality Date fruits,pectinase enzyme,physico-chemical proprieties,juice,Dibs
https://ajas.journals.ekb.eg/article_7904.html
https://ajas.journals.ekb.eg/article_7904_2bf5264ff6688eb56bcd5a111db78d85.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
01
17
Evaluation of Sewy Date Palm Productivity under Different Climatic Conditions
69
78
EN
Kamelia
I.
Ahmed-Amen
Pomology Department, Faculty of Agriculture, Assiut University, Assiut, Egypt
R.
A.A.
Mostafa
Pomology Department, Faculty of Agriculture, Assiut University, Assiut, Egypt
Doaa
Sh.
El- Azab
Pomology Department, Faculty of Agriculture, Assiut University, Assiut, Egypt
A.
M.
Ali
Pomology Department, Faculty of Agriculture, Assiut University, Assiut, Egypt
ahmedali171090@yahoo.com
10.21608/ajas.2018.8160
This study was carried out during three successive seasons of 2015, 2016 and 2017 to evaluate yield and fruit quality of Sewy date palm cultivar grown under Aswan, El-Kharga, Assiut and Al-Dakhla climatic conditions. The data revealed that, Sewy cultivar grown in El-Kharga and Al-Dakhla which had higher temperature and lower relative humidity (R.H.) gave the higher bunch weight and total yield compared with those grown in Assiut which had lower temperature and higher R.H.<br /> High temperature and low R.H. from March to October caused earlier fruit maturity in Aswan and El-Kharga with about three to four weeks than in Assiut, whereas the earlier harvest date under Al-Dakhla about two weeks than in Assiut.<br /> Fruit dimensions, weight and flesh percentage recorded the greatest values in Assiut and Al-Dakhla as compared with other studied locations. At high temperature and low R.H. under Aswan and El-Kharga conditions, the pulp of Sewy dates had higher TSS and total sugar content whereas it had less moisture content than pulp of those produced in the other localities.<br /> <br /> No significant differences were observed in chemical fruits quality that produced under El-Kharga and Al-Dakhla locations. It is evident from the foregoing results that the climatic conditions of Al-Dakhla and El-Kharga are ideal climatic conditions for the cultivation and production of Sewy date palm.
date palm,Evaluation,Climatic conditions,yield,fruit quality
https://ajas.journals.ekb.eg/article_8160.html
https://ajas.journals.ekb.eg/article_8160_da25e5f3fb98730019c2dd15380c7c2c.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
03
05
Effect of Application of Some Growth Regulators and CaCl2 on Fruit Drop, Yield and Fruit Quality of Keitt Mango Trees
79
95
EN
H.
R.
Gattass
Horticulture Research Institute, Egypt
A.
A.
Essa
Department of Horticulture (Pomology), Faculty of Agriculture, Alexandria University.
Hend
A.
Marzouk
Department of Horticulture (Pomology), Faculty of Agriculture, Alexandria University.
Safaa
M.
El- Nawam
Horticulture Research Institute, Egypt
safaaelnwam@gmail.com
10.21608/ajas.2018.8168
The present study was carried out during the two successive seasons of 2014 and 2015 on eight years old Keitt mango trees, in order to investigate the effect of spraying each of NAA(40ppm), GA<sub>3</sub>(40ppm), CPPU(10 ppm), BA (40ppm), SA (250 ppm) and CaCl<sub>2</sub> (0.75%) after fruit set on fruit drop, yield and fruit quality of Keitt mangoes trees. Trees were spaced at 2 X 3 meters apart and grown in a sandy soil at a private orchard in Edko region, El-Behera governorate, Egypt. Trees were sprayed twice; after fruit set and 30 days later in a randomized complete block design (RCBD). The results showed that the fruit drop percentage after one, two and three months from the application date was significantly decreased and the fruit retention percent and yield per tree were increased by all sprayed substances in comparison with the control in both seasons. Generally, trees spraying with NAA, GA<sub>3</sub>, CPPU or BA was considered the best and effective in decreasing fruit drop and increasing fruit retention and tree yield. Spraying GA<sub>3</sub>, SA and CPPU improved some fruit physical characteristics in comparison with the control. In the meantime, spraying SA, NAA and CaCl<sub>2</sub> had positive influence on fruit chemical characters in comparison with the control.
mango trees,growth regulators,fruit quality
https://ajas.journals.ekb.eg/article_8168.html
https://ajas.journals.ekb.eg/article_8168_7b36f572f77f29440bb2165afa85e764.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
02
14
Metaxinic Effect of Some Male Date Palms on "Zaghloul" and "Samany" Fruits
96
109
EN
Safaa
M.
El- Nawam
Horticulture Research Institute, Egypt
safaaelnwam@gmail.com
10.21608/ajas.2018.8171
This study carried out during 2015 and 2016 to detect the influence of pollen obtained from different male date palms on some fruit quality for "Samany" and "Zaghloul" date cultivars grown in Edko, El-Behera Governorate, Egypt. This study aimed to evaluate the influence of various pollinizers when pollinated the female "Samany" and "Zaghloul" date cvs. to examine metaxinic effect on fruit quality. The pollen from each pollinizer given code numbers: (I, II, III and IV) were used for pollinating female "Samany" and "Zaghloul" date cultivars by placing sex male strands within each female spathe. At harvest time (Khalal Stage) a collective sample of 30 fruits was taken from each replicate to determine fruit dimensions, fruit weight, flesh and seed weight. Also, chemical properties was determined such as total soluble solids (TSS), acidity percentage, TSS/acidity, vitamin C, total sugar percentage and soluble tannins content.The obtained results recorded that fruit quality of "Samany" and "Zaghloul" dates was influenced to different pollinizers. In addition, there were variation in fruit quality as a resulted by different pollinizer in both cultivars. Some males produced higher fruit quality when pollinated the female with these males as compared to others.The results showed that the highest values in most testing parameters of "Zaghloul" and "Samany" for fruit quality were obtained when pollinated with pollinizer No.II. Thus, we are recommended to propagate the studied male No. II with any suitable mean.
Metaxenia,date palm,Male palm,pollination,Pollinizers,Samany cultivar,Zaghlol cultivar,fruit quality
https://ajas.journals.ekb.eg/article_8171.html
https://ajas.journals.ekb.eg/article_8171_d5b5f9622a60cef5cdf3db7e4da18700.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
04
25
Effect of Chitosan and Clove Oil on Physical and Chemical Properties of Red Roomy Grapes During Cold Storage A- Effect of Chitosan and Clove Oil on Weight Loss and Decay Percentages
110
117
EN
T.
K.
Elmahdy
Department of Pomology, Faculty of Agriculture, Assiut University, Assiut, Egypt.
M.
M.
El-Akad
Department of Pomology, Faculty of Agriculture, Assiut University, Assiut, Egypt.
E.
M.A.
Radwan
Department of Horticultural, Faculty of Agriculture, New valley, Egypt.
Al-Zahraa
Abd-Ellah
Mahmoud
Department of Pomology, Faculty of Agriculture, New valley, Egypt.
10.21608/ajas.2018.8177
This work was carried out during two successive seasons 2015 and 2016 to study the effect of Red Roomy grapes coating with chitosan (2%) and clove oil (3%) on weight loss and decay percentages during cold storage. The obtained result showed that fruit weight loss(%) and decay(%) significantly increased by all treatments with advancing the storage duration and reached its maximum values at the end of storage period. Moreover at the end of storage period the highest values of weight loss (%) and decay (%) were recorded in uncoated grapes (control) as compared with both chitosan and clove oil coating during both experimental seasons. In addition the lowest values of weight loss and decay % were found in the grapes coated with chitosan during the first season (2015), while the coated grapes with clove oil had the lowest percentages of weight loss and decay during the second season (2016).
Storage,Postharvest,Chitosan,Clove oil,weight loss,decay,Grapes
https://ajas.journals.ekb.eg/article_8177.html
https://ajas.journals.ekb.eg/article_8177_a974eafabe5179a6b651cc1d89677b35.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
04
24
Biochemical, Immunological and Histopathological Alterations in Quail Fed on Xanthophyllomyces dendrohous
118
132
EN
A.
Abd El-Hafez
Department of Animal and Poultry Production, Fac. of Agriculture, Minia University, Egypt
M.
A.H.
Soliman
Department of Animal and Poultry Production, Fac. of Agriculture, Minia University, Egypt
H.
A.M.
Elwan
Department of Animal and Poultry Production, Fac. of Agriculture, Minia University, Egypt
S.
A.
Haddad
Department of Agricultural Microbiology, Fac. of Agriculture, Minia University, Egypt
A.
A.
Abd El-Rahman
Dept. of Agricultural Chemistry, Fac. of Agriculture, Minia University, El-Minia, Egypt
atefnagi2000@yahoo.com
10.21608/ajas.2018.8197
In the recent years, red yeast (RY) <em>Xanthophyllomyces dendrohous </em>have been used for color enhancing, pharmaceutical, and food industries. In search for a new substance which can be used as feed additives to reduced morbidity and mortality due to clinical diseases, the present study was carried out examine the biochemical, immunological and histopathological changes in quail exposed to <em>Xanthophyllomyces dendrohous</em>. A total of 360 quail chicks were allocated into 6 groups (60 chicks each) each group were divided into 3 replicates (20 chicks each). The first one served as control (without additives). The second, third, fourth and fifth groups were provided with 4, 8, 12 and 16g RY/kg diet respectively. Whereas, the sixth group exposed to 16g active dry yeast (ADY)/kg diet. Experimental period lasted for 28 days. Liver, renal function tests, lipid profile, total immunoglobulin and total antioxidant capacity were assessed in the serum. Furthermore, histopathological alterations of liver and kidney were investigated. Results revealed that, administration of RY affect all parameters measured in the current study in a concentration dependent manner. This could be attributed to the difference in concentration and profile of carotenoids in the tested product. High inclusion levels of RY in quail diet were seen to elevate within the normal range serum AST, urea, total cholesterol, and triglycerides. No significant differences were found between ADY<em>administrative groups</em> and control in most tested parameters. Furthermore, RY and ADY administration did not show any pathological alteration in the liver and renal tissues. In conclusion, RY in low doses can be safely used in quail diets, but the high doses are not recommended.
Quail,biochemical,immunological,Histopathological,Xanthophyllomyces dendrohous
https://ajas.journals.ekb.eg/article_8197.html
https://ajas.journals.ekb.eg/article_8197_34cda9a79508a1a321051d5b6f744eb6.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
03
28
Roles of Auxins and Propagation Time in Rooting of Kigelia pinnata Jacq. Cuttings
133
147
EN
I.
H.
El-Sallami
Ornamental Plants Dept., Fac. Agric., Assiut University, Egypt.
ismail.ahmed1@agr.au.edu.eg
M.
M.
Gad
Ornamental Plants Dept., Fac. Agric., Assiut University, Egypt.
mohamed.mohamed1@agr.au.edu.eg
Mona
F.
Hussein
Horticulture Res. Institute, Ministry of Agric., Egypt.
A.
F.
Ebeid
Horticulture Res. Institute, Ministry of Agric., Egypt.
10.21608/ajas.2018.8200
Cuttings of <em>Kigelia pinnata</em> Jacq. were soaked for 24 hours in solutions of certain growth regulators; IAA, IBA and NAA, each at 250, 500 and 1000 ppm, in addition to untreated cuttings (control), and two propagation times (March and September) taken to define the most suitable combination for the best rooting performance.<br /> Naphthalene acetic acid (NAA) at 250 ppm showed the highest rooting percentage (56%) followed by IAA at 250 ppm or IBA at 500 ppm; each recorded 36%, whereas untreated cuttings produced the poorest rooting (11%). Cuttings propagated in March were more successfully and superior to those taken in September to promote rooting percentage and root growth.<br /> The best treatment which gave the maximum rooting percentage was more closely associated with stimulated root characteristics. A positive relationship between high rooting ability and high C/N ratio in cutting bases was found. Furthermore, the high rooting capacity was accompanied by a great reduction in phenolic compounds content in cutting tissues. The reduction was apparently associated with NAA at 250 ppm and the propagation in March.
Plant growth regulators,Root-promoting chemicals,Auxin application,Stem cutting propagation,Propagation time,Kigelia pinnata
https://ajas.journals.ekb.eg/article_8200.html
https://ajas.journals.ekb.eg/article_8200_eeff3278a8042d0f5f0f8946c6d26e94.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
01
20
Heavy Metals Accumulation in the Edible Parts of some Sewage Wastewater Irrigated Vegetable Crops
148
158
EN
Nadia
M. K.
Roshdy
Department of Soils and Water, Faculty of Agriculture, Assiut University, Assiut
10.21608/ajas.2018.8210
Nowadays, using sewage wastewater in the irrigated agriculture causes hazardous environment impacts. Assessment of these negative effects is vital issue to prevent heavy metals to be introduced in the food chain. Field and laboratory studies were conducted at Ellwan, Mangabad and El-Madabegh villages, Assiut Governorate, in order to evaluate heavy metals concentrations in the edible parts of carrot, turnip and onion plantswhich were irrigated with sewage water (SW). The obtained results indicated that, the soils of the studied villages were contaminated by heavy metals. The concentrations of Zn, Cu, Pb, Cd and Ni concentrations in the edible portion of thesevegetables plants ranged between 45-70, 13-19, 3.8-6.2, 2.85-3.85 and 2-6 mgkg<sup>–1</sup>, respectively. The obtained results showed that the concentrations of Pb, Cd and Ni in the edible plants were higher than the permissible limit levels but those of Zn and Cu were within the safe limit levels. It is worthy to mention that the irrigated edible vegetable crops especially onion, turnip and carrot with SW should be avoided. This study highlights the potential hazard for human health due to uptake of high concentrations of heavy metals especially Ni, Cd and Pb by the studied vegetable crops.
Contaminated soils,Safe limits,Human consumption,Heavy metals,Carrot,turnip,Onion
https://ajas.journals.ekb.eg/article_8210.html
https://ajas.journals.ekb.eg/article_8210_5ef3d00515eaed3579f9fa157e98c7f5.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
02
15
Impact of Seaweed Extract and Phosphorus Application on Productivity of Dahlia Plants
159
188
EN
Sohier
G.
El-Alsayed
Agriculture Research Center, Horticulture Research Institute, Antoniadis Research Branch, Alexandria, Egypt.
Sahar
Ismail
Desert Research Center, Department of Water Resources and Desert Soils, Soil Physics and Chemistry Division, Cairo, Egypt
Doaa
Eissa
Desert Research Center, Department of Water Resources and Desert Soils, Soil Physics and Chemistry Division, Cairo, Egypt
10.21608/ajas.2018.8230
A pot experiment was conducted for two successive seasons on a sandy soil and<em> Dahlia pinnata</em> plants grown on it. The randomized block design was used with two factors, the first was seaweed extracts (SWE) 0.0, 0.5, 1 and 1.5 % and the second was phosphorus (P) element treatment through soil application technique at four levels 0.0, 100, 200 and 300 ppm. The objective of this study was to determine the effect of different treatments of seaweed extract on chemical behavior and uptake of phosphorus at different levels in the sandy soil and on plant growth, flowering and chemical composition of growing plants and how the net negative surface charge and phosphate adsorption processes in a sandy soil were affected by seaweed and inorganic fertilizer applications. Soil samples ware collected from a field experiment where seaweed (SWE) and triple superphosphate (TSP) were applied annually on an equivalent plant-available P basis. The results showed that adding seaweed extract (Oligo- x) at 1% and P at 200 ppm revealed significant increase in the studied parameters in both seasons. Significant increases were in the stem length, stem dry weight, number of leaves and their dry weight, leaf area as well as the flower diameter, duration and dry weight while a significant increase in number of days needed to reach flowering was recorded with all fertilizer treatments in both seasons. Tuberous root fresh weights and their number/Plant were obviously stimulated by the used treatments. Meanwhile the content of the leaves of N, P and K (%) as well as the total content of chlorophyll and carbohydrates were significantly stimulated in both seasons compared to the control. After 2 years, SWE-soils had 37% more negative surface charge in soil suspensions from pH 4 to 7 than TSP-fertilized soils. Phosphate adsorption was 23% lower in soils received SEW than TSP. The phosphate adsorption data (adsorption of added phosphate + native adsorbed phosphate) was modeled with the Langmuir 2-surface equation, which revealed that the binding strength for phosphate, including native adsorbed phosphate, was about 50% less in the SWE-fertilized soils than the TSP-fertilized soils. These results suggest that SWE applications increased the net negative surface charge also reduces the soil phosphate adsorption capacity. Phosphate adsorption isotherms showed that phosphate was weakly bound in SWE-fertilized soils, compared with TSP-fertilized soils. Data showed that seaweed not only decreased phosphate retention by the soil but also increased phosphate release into the soil solution. It could be recommended to grow dahlia bulbs in sandy soil by adding of seaweed extract (SWE) at rate (1%) with supplying phosphorus at a level of 200 ppm.
seaweed,Algae extract (Oligo-x),Triple super phosphorous,dahlia plant
https://ajas.journals.ekb.eg/article_8230.html
https://ajas.journals.ekb.eg/article_8230_706944153cb5716b43cd2cdea6506d11.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
49
1
2018
04
20
The Efficiency of using Irrigation Water Supply in Wheat Crop Cultivation in The New Valley Governorate
189
198
EN
Salah
Ali
Saleh
Department of Agricultural Economics, Fac. Agric., Assiut University
Yehia
Aly
Hussin
Department of Agricultural Economics, Fac. Agric., Assiut University
Dalia
Hamed
ELShoweikh
Department of Agricultural Economics, Fac. Agric., Assiut University
Omar
Mahmod
Department of Agricultural Economics, Fac. Agric., Assiut University
10.21608/ajas.2018.8233
The New Valley Governorate is one of the largest governorates in Egypt with an area of about 4400 km<sup>2</sup>, equivalent to 44% of the total area of the Arab Republic of Egypt and 66% of the Western Sahara. The groundwater is the only available water resource for all purposes (drinking, industry, agriculture). The agricultural sector is considered to be the most important productive sector in the economic structure of the governorate. Due to the importance of the wheat crop as a strategic crop used in human food, it is considered a source of animal nutrition. It is one of the most important field crops cultivated in the governorate. The area is about 158.8 thousand feddans in the 2015/2016 season. Of the total area cultivated with winter field crops. The problem of research was that although the New Valley Governorate is characterized by the availability of arable land of about 3.3 million feddans, of which about 158.8 thousand feddans are actually cultivated, In addition to the use of traditional irrigation methods and the consequent depletion of this resource. In addition, the main factor in agricultural exploitation was the water and not the land, which led to a decrease in the quantity of irrigated crops for arable crops. The research aimed at shedding light on the economics of wheat production in the New Valley governorate as one of the most important for field crops and maintain that using deep groundwater and surface using modern and traditional irrigation methods, and by studying the effect of different groundwater source and method of irrigation on the efficiency of the use of indicators alone water for the cultivation of this crop. The results of the research showed that the quantity of the main output of the wheat crop reached a maximum of 16.77 ardab. Irrigation in surface wells (spraying) while the irrigation system in the two wells together(irrigation by flooding) reached 12.15 ardab. The secondary yield of the wheat crop was the lowest in the Irrigation in surface wells (spraying irrigation) 9.88 load, while the surface irrigation system (Irrigation by flooding) was about 5.65 load. As a result, there were statistically significant differences in irrigation water unit productivity, net revenue from water unit, irrigation unit cost, To produce the output unit, the ratio of irrigation costs to total costs, where a Wheat cultivation using surface wells (spraying irrigation) came first in terms of productivity of the water unit, while wheat cultivation using deep wells (irrigation by flooding) came in first place in terms of net revenue from the water unit, and wheat cultivation using the two wells together (Irrigation by flooding) was ranked first in terms of the cost of irrigating the production unit. In terms of quantity of water needed to produce the output unit, wheat cultivation using both wells (irrigation by flooding) came first, while wheat cultivation using both wells the first place in terms of proportion of the cost in irrigation for total costs.
Wheat-New Valley-efficient irrigation water
https://ajas.journals.ekb.eg/article_8233.html
https://ajas.journals.ekb.eg/article_8233_92b30f3fe97c8438d4997f4666996a56.pdf