Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
45
4
2014
11
01
Effect of Intermittent Warming Treatments on the Storability of Balady Mandarin (Citrus reticulata L.) Fruits
45
58
EN
10.21608/ajas.2014.3499
This study was conducted during three successive seasons 2012, 2013 and 2014 to study the effect of intermittent warming (IW) on the storability and quality of Balady mandarin fruits during the storage period. The storage treatments are (constant, 8°C and 2°C and 2°C with intermittent warming 8°C for 8 or 16 hours every week or biweekly). Samples of each treatments were randomly taken monthly.
Results indicated that all IW treatments decreased fruit weight loss and fruit decay percentage. The most clear reduction was associated with storage at 8°C or 2°C, where the less value was related with IW treatment (2°C for 2 week followed regularly by 8°C for 8 hours). Also, such treatment improved fruit quality during the storage period compared to control (8°C).
The fruit weight loss %, fruit decay %, total soluble solids %, sugar contents % and TSS/acid ratio were significantly increased with advanced cold storage period. On the other hand, prolonging storage induced a gradually decrease of fruit juice percentage, acidity % and V.C. content.
It could be concluded that intermittent warming (2°C for 2 weeks plus 8°C for 8 h) seemed to be the proper and ideal treatment to prolong cold storage of Balady mandarin fruits without great reduction in fruit quality.
Balady mandarin,storability,intermittent warming,Storage
https://ajas.journals.ekb.eg/article_3499.html
https://ajas.journals.ekb.eg/article_3499_b7ff9547dcdf9abbb39019e80a0a3054.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
45
4
2014
11
01
Problems that Face Poultry Producers in Assiut Governorate
59
75
EN
10.21608/ajas.2014.3500
Poultry industry is considered one of the most important industries in Egypt and an important supply of animal protein. This industry is distinguished with various characteristics, one of these characteristics is the rapid of duration of capital and the no need of a large agricultural land. The research problem is represented in the existence of the problems and the dangers that may result in hindering the farm from the production partially or totally. The research objective is to identify the most important problems and dangers that may result in hindering the farm from producing poultry.
<strong>Results of the study are as follows:</strong>
1- The most important financial problem is that every loan of production requirements are not sufficient (quest.3), and the complexity of the executive producers of obtaining the loan (quest. 5).
2- The most important licenses problem is the requirements of the farm to be at a distant from the habitants areas or in the desert lands (quest. 3).
3- The most important feeding problem is its high price (quest. 1).
4- The problem of the medications, vaccines imported from outside Egypt are expired, in addition to the high price of the medications (quest. 1).
5- The most important marketing problem is in the instability of the sale prices (quest. 3), and the un organization of the production in the governorate which leads to the instability of price and products.
6- The most serious dangers that lead to not operating the farm with its full product energy is due to the spread of diseases and the decrease of the veterinary care (quest. 2), while the important dangers that lead to not operating the farm in some duration is the high price of feeding and chicks.
Meat of chickens,Assiut Governorate,the problems
https://ajas.journals.ekb.eg/article_3500.html
https://ajas.journals.ekb.eg/article_3500_9052eaaf60d93064d950ec156472e673.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
45
4
2014
11
01
Correlation, Path Analysis and RAPD Markers in Sorghum (Sorghum bicolor L. Moench) Genotypes
15
28
EN
10.21608/ajas.2014.3501
Genetic diversity is one of the key factors for the improvement of many crop plants including sorghum. Fifteen sorghum genotypes were planted in 2012 and 2013 seasons to compare among them for agronomic traits and molecular level. The combined analysis for agronomic traits and yield components showed significant differences among genotypes for all studied traits. The highest mean values of 1000-kernel weight (36.08g) and number of seeds/panicle traits (1315.9) were obtained from Giza-15 genotype. The lowest mean values of 1000-kernel weight (17.07g) and number of seeds/panicle traits (646.9) were obtained from local-162 and El-Kharga genotypes, respectively. Values of correlation analysis indicated that 1000-kernel weight was positive and highly significant correlation with grain weight (0.749). The path analysis showed that 1000-kernel weight had high and positive direct effect on grain weight (0.7102), also number of seeds/panicle had positive direct effect on grain weight (0.1443) but it had negative direct effect through plant height (-0.1876). Genetic diversity of sorghum genotypes detected using of Random Amplified Polymorphism DNA (RAPD) markers. 76 DNA bands were obtained from 12 primers which could detected a percentage of polymorphism ranged from 40 to 100% with an average of 73.36%. The average of polymorphic bands was 4.67 per primer. The dendrogram based on RAPD marker gave three main groups; the first group contains three genotypes, but the second group sub-divided into two sub-clusters, which contain three genotypes each. The third group contains six genotypes. The similarity percent based on agronomical traits was not significantly correlated (r = 0.07961) with the genetic distance based on RAPD markers.
correlation,sorghum genotypes,path analysis,RAPD markers,variance analysis
https://ajas.journals.ekb.eg/article_3501.html
https://ajas.journals.ekb.eg/article_3501_54c7d83fc8d8c8191f95ad52e5e8542c.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
45
4
2014
11
01
Effect of NPK Fertilization Rates and Splitting on the Grain Yield and its Components of Two Sorghum Cultivars
1
14
EN
10.21608/ajas.2014.3502
A field experiment was conducted at the Agronomy Department Farm, Faculty of Agriculture, Assiut University during the 2012 and 2013 summer growing seasons to study the effect of NPK fertilization rates and splitting on the grain yield and its components of two sorghum cultivars. The experiment was carried out in a randomized complete block design (RCBD) using split-split plot arrangement with three replicates. Cultivars were occupied at main plot while NPK rates were allotted on sub plot and splitting doses of NPK were allocated on sub sub plot. The obtained results showed that:
Plant height, Panicle weight, Seed index and Grain yield /fed were affected significantly by studied cultivars in both seasons. Giza 15 cultivar surpassed the Dorado one and gained the highest mean values of mentioned traits in both seasons. The application of NPK fertilizers exerted a significant influence on plant height, panicle weight, seed index and grain yield /fed in the two growing seasons. The highest mean values of panicle weight, seed index and grain yield fed<sup>-1</sup> were obtained when sorghum plants fertilized by 125% NPK/fed of the recommended fertilizers in both seasons. Splitting NPK into four equal doses resulted in the highest mean value of plant height in both seasons while, panicle weight, seed index and grain yield /fed traits were responded to three equal doses in the two growing seasons. Also, the all first order interactions (varieties × NPK rates, varieties × splitting number and NPK rates × splitting) exerted a significant influence on plant height, panicle weight, seed index and Grain yield /fed in both seasons. The second order interaction (varieties × NPK rates × splitting) exerted a significant influence on plant height; panicle weight, seed index and grain yield /fed in the two growing seasons. The highest value of grain yield/ fed was obtained from Giza 15 cultivar when received the highest NPK rate (125% NPK/fed of the recommended fertilizers) applied at three equal doses in both seasons.
Sorghum,NPK. Fertilization rates and splitting
https://ajas.journals.ekb.eg/article_3502.html
https://ajas.journals.ekb.eg/article_3502_437340ba94bf86ebf27f3949c3c5f3f2.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
45
4
2014
11
01
Development of the Exports of some Vegetable and Fruit Crops and its Competitive Position in Global Markets
76
103
EN
10.21608/ajas.2014.3503
The study aimed to shed light on exports development of potatoes, onion, orange and grapes, to stand on their competitiveness in global markets. The study depended on many of local and global sources to provide its data, and on many of descriptive and quantitative analysis methods arrive at their results.
The study found the following results:
1- Increase rates in production and exports of most crops under study at local level exceed that at global level.
2- The production of the crops under study characterized by higher degree of stability compared to their exports at the local and global level, except potatoes the production of which was characterized by higher degree of stability compared by its exports at global level.
3- At the side of production, onion has the higher instability coefficient at both local and global levels, while at the side of exports, grapes has the higher degree of this coefficient at the local level and orange at global level.
4- Production and exports of various commodities under study characterized by higher degree of instability at local level compared by global level.
5- It is possible to increase Egyptian revenues of exports by reallocating its exports through exporting season, and among different importing markets.
6- Egypt enjoyed a competitive advantage price in the export of potatoes compared to Italy and Netherlands, and in the export of onion for both United States and France, and in the export of orange for both Morocco and Spain, South Africa and Israel, and in the export of grapes for each Morocco and Spain.
7- Egypt has the highest market share in the Russian market for potatoes, and in Saudi market for onion and organ, and in UK market for grapes.
8- Market penetration rate reached its lowest level in the export of potatoes in various markets, while this ratio increased relatively in the export of onion, orange and grapes in most markets.
9- According to revealed comparative advantage, all of the commodities under study, has this advantage especially orange crop, followed by onion, potatoes and grapes respectively.
Global markets,vegetables,fruit crops
https://ajas.journals.ekb.eg/article_3503.html
https://ajas.journals.ekb.eg/article_3503_16a3af24bf65c87f759461dd3e3cb597.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
45
4
2014
11
01
Econometric Analysis of Agricultural Investment in Egypt
104
113
EN
10.21608/ajas.2014.3504
The agricultural sector cannot play a role in development without having an appropriate amount of investments. So, the current study aims to identify the role of agricultural investments in developing the Egyptian agricultural sector. To achieve the aim, the descriptive and quantitative methods were used to analyze relevant data using a number of mathematical and statistical methods. The period covered is from 1995 to 2013.
Several results were reached:
An efficiency of agricultural investment in Egypt exists.
Agricultural investments play a very small role in obtaining agricultural products.
Replacement of agricultural work by investments is low due to low investments in agriculture.
The major variables explaining the agricultural investment targeted level are previous year agricultural investment and interest rates.
There is a gap between actual agricultural investments and targeted investments.
In light of the results, the recommendations are:
Eliminating obstacles that hinder agricultural investment in Egypt.
Replacing work by agricultural investments within the agricultural sector.
Increasing investments in agriculture.
Agricultural investment,Egypt,Standard analysis
https://ajas.journals.ekb.eg/article_3504.html
https://ajas.journals.ekb.eg/article_3504_c3c8fa531ba3f10e456c3b48789cd252.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
45
4
2014
11
01
An Economic Study for Fish Farming in Sohag Governorate (The case of floating cages)
114
125
EN
10.21608/ajas.2014.3505
Sohag Governorate dependent on production of fish by the civil farms and farm floating cages system, as well as the natural breeding of fish in the Nile River and where are fishing by fishing boats and travel about 2142 boats of the third degree, or fishing methods unfair which may cause a decrease fish production consequently high price. It is worth mentioning that the islands to began to spread to the edges and the middle of the Nile River are affecting negatively on natural produced quantities of fish to governorate, so the expansion of fish farming creates fish farms in a way cages floating in the region has become necessary to make up the shortfall caused by low quantities of natural production fish, and is aimed at shedding light on the current status of the fish production in Sohag province, and to identify the most important factors affecting the fish farms in the governorate the production and evaluation of the productive efficiency of fish farms in order to reach production optimization and make financial assessment of fish farms in a way floating cages in the governorate, and to identify the most important production and marketing problems faced farms It is the results of the feasibility study, the production of Bolty fish in cages at a price discount of 10% and 14%, where the ratio of benefits to costs amounted to about 1.07 to 1.03 at a price discount, respectively. While the total net present value of the benefits in each about 14773 and 9528 pounds, respectively, and total internal rate of return about 37.49% each, respectively, while the payback period amounted to about 2.66 years.
Sohag Governorate,fish farming,Economic study
https://ajas.journals.ekb.eg/article_3505.html
https://ajas.journals.ekb.eg/article_3505_19ec42a2f6d2a6577de540358e635b4a.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
45
4
2014
11
01
Some Rural Properties Socially Excluded and Their Relationship to the Level of Community Participation (A Field Study in One of the Rural Social Units in Assiut Governorate)
126
139
EN
10.21608/ajas.2014.3506
This research aims to identify some of the personal and social characteristics among rural respondents socially excluded, determine the level of social participation, and identify the nature of the relationship between the level of community involvement and personal and social characteristics of the studied.
The Poorest village were chosen from Assiut Governorate to conducted research, Date was collected from Abu-Elhedr Village from Diyrout administrative center by Questionnaire were designed for this propose, The respondents were selected randomly from population, The sample Size were attain 120 respondent represent 25% form Population, Data were collected during the month of July 2014, Percentages and Frequencies were used to show data, and Chi<sup>2</sup> test were used to analyze data by using SPSS.
The most important results the research found were:
Less than half of the respondents 47,5%are illiterate, 20% of them has chronic diseases, 73,5% of them have allow level of ambition About half of the respondents 55% high level of participation socials , about half of the respondents 75,5% allow level of participation in development project, and 11,6% of the respondents high level of participation political.
This research recommends that: Health care must be interested to the respondents, the need to raise the level of awareness among the poor people of the importance of the process of community participation
Characteristics of the Rural,socially excluded,their community participation,Assiut Governorate
https://ajas.journals.ekb.eg/article_3506.html
https://ajas.journals.ekb.eg/article_3506_50d7f9e9eedff448f5cde99eb11ee6a7.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
45
4
2014
11
01
Genetic differentiation of Erwinia carotovora subsp. carotovora and subsp. atroseptica
29
44
EN
10.21608/ajas.2014.3507
<em>Erwinia carotovora</em> subsp. <em>atroseptica</em> (<em>Eca</em>), the causes of blackleg of potato, is closely resembles to <em>E. carotovora</em> subsp. <em>carotovora</em> (<em>Ecc</em>), the causes of bacterial soft rot of potato, in many physiological and biochemical characteristics. Nine isolates were obtained from potato tubers collected from different localities of El-Minia, Assiut and Sohag Governorates and subjected to this investigation. Three different molecular techniques were employed to differentiate the two subsp. of <em>Erwinia carotovora</em>. The primers used in RAPD-PCR technique generated an unique distinct bands which could be used as genetic markers to distinguish the isolates in respect of their sub species (<em>carotovora </em>or <em>atroseptica</em>) or their virulence (high or low virulence). Also, the 16s rRNA gene sequences was obtained from the bacterial isolates of <em>Ecc</em> and <em>Eca</em>. The phylogenetic tree couldn`t distinguish between the two subsp. of <em>E. carotovora</em>, where some isolates of <em>Ecc</em> connected in the same cluster with <em>Eca</em>. Moreover, SDS-PAGE analysis technique was used. The application of protein (SDS-PAGE) analysis may aid to detect the differences between the isolates of <em>E. c. </em>subsp. <em>carotovora</em> or <em>atroseptica</em> in the base of the region of collection. Where, protein analysis showed polypeptide fractions could be used as genetic markers to distinguish isolates collected from same region.
Genetic differences,bacteria Irwinia carotovora
https://ajas.journals.ekb.eg/article_3507.html
https://ajas.journals.ekb.eg/article_3507_b6f7f2c4a7de95114ff168e9e0c5dc93.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
45
4
2014
11
01
Problems of Agricultural Extension Agents in ELbehera Governorate
140
158
EN
10.21608/ajas.2014.3510
The main objectives of this research are: studying problems of agricultural extension agents in ELbehera Governorate, determining the importance of each of these problems, identifying respondents suggestions to resolve these problems and determineg the relationship between the extent of importance of each problem and some studied personal characteristics.
The study was conducted on a group of 207 out 220 agricultural extension agents in ELbehera Governorate. A questionnaire was prepared to collect data through personal interview during January _ February 2014 Frequencies, percentages and simple correlation coefficient were used to analysis data by using SPSS.
The results showed that the important problems revealed by agricultural extension agents are as follows: low wage and income of agricultural agent; weakness of extension of necessary facilities and administrative work and finally social and psychological problems.
The vast majority of the respondents (85%) agreed that studied problems are considered as a great and medium degree of importance.
The agents suggested many ways to improve agricultural extension work, these are: increase wages and incentives of agents; design a special cadre for extension agents and publish more extension bulletins and publications.
The analyze of data showed significant a relationship at 0.01 between the important problems and some personal characteristics of the respondents.
Problems,agricultural extension agents
https://ajas.journals.ekb.eg/article_3510.html
https://ajas.journals.ekb.eg/article_3510_b12a12e9d3904a16c2624b482a8b8e82.pdf
Assiut University, Faculty of Agriculture
Assiut Journal of Agricultural Sciences
1110-0486
2356-9840
45
4
2014
11
01
The Role of the National Agricultural Developement Plan in Local Developement in the Case of Algeria, the State of Willaya Bordj
159
172
EN
10.21608/ajas.2014.3511
The agricultural sector Constitute a priority in the economic policies of Algeria since independence and highlights it through legislation and legal texts and changing real estate ownership experienced by this sector, professionals starting from the stage of self-governance in 1962 until the stage of the nineties the emergence of the National Plan for Agricultural Development, we will try in this study to identify the role of national Plan for Agricultural Development in local development at the level of the state of the bordj wilaya<strong>.</strong>
Local development,National Plan for Agricultural Development,Local resource-enploi- production
https://ajas.journals.ekb.eg/article_3511.html
https://ajas.journals.ekb.eg/article_3511_4073ce6d4e7f44ef1007ce604a13bd41.pdf