Advances in Agricultural Science <p style="text-align: justify;"><span style="font-size: 14pt;"><span class="st">Welcome to AAS journal (ISSN: 2588-3801) submission system</span>.&nbsp; Journal Homepage address:</span></p> <p style="text-align: justify;"><span style="font-size: 14pt;"><span class="st">&gt;&gt;&gt; To make a submission to AAS&nbsp;journal, you will first need to&nbsp;<a href="">register</a>&nbsp;as an Author.&nbsp;After that, when you<a href="">&nbsp;login</a>, you will be taken to your Dashboard,&nbsp;<strong>or send your manuscript via Email-&nbsp; (E-mail addresses for all authors are required) </strong>&lt;&lt;&lt;</span></span></p> <p>&nbsp;</p> Avicenna Applied Research Center en-US Advances in Agricultural Science 2588-3801 Influences of Seaweed Extract and Potassium Nitrate Foliar Application on Yield and Fruit Quality of Date Palms (Phoenix dactylifera L. cv. Sukary) This study was carried out during 2012 and 2013 seasons on date palms cv. Sukary, to study the effect of seaweed extracts and KNO3 spray (1 and 2%) on fruit yield and quality characters. Five spraying treatments were applied as follow: KNO3 at 1% and 2%, seaweed extracts at 1% and 2%, and the control (water). Results showed that both seaweed extracts and KNO3 at 2% level improved fruit yield and quality of Sukary dates. Spraying of 2% seaweed extracts resulted in the highest bunch weight, fruit yield, fruit and flesh weight, soluble solids content and reducing and total sugars content. On the other hand, spraying of 2% KNO3 showed the highest fruit volume, fruit diameter and fruit moisture. This study indicated that seaweed extracts improved fruit yield and quality as compared to KNO3. In addition, seaweed extracts are more favorable to the consumer rather than chemical spray with KNO3 Alaa El-Din K. Omar Mahmoud A. Ahmed Adel M. Al-Saif ##submission.copyrightStatement## 2017-10-29 2017-10-29 5 3 16 22 Comparison of Spatial Interpolation Methods for Mapping the Qualitative Properties of Soil <p>The high proliferation rate of population and their over growing demands for foods that rely on environment and natural resources resulted in evaluation and recognition of more inputs, in particular soil and water resources. In this regard, mapping the soil properties is considered as well-adopted approach to provide fundamental information related to land resources. As a branch of applied statistics, geostatistics uses the collected information sampled location to provide a broad range of estimates concerning the land properties in unsampled locations. In the present study, we evaluated the performance of estimates kriging, inverse distance weighting, and Cokriging to map some of the soil quality properties in chat fields of Golestan province located in northern part of Iran. We measured percentage of clay, silt, sand, calcium carbonate, organic carbon, and concentrations of micronutrients such as iron, copper, zinc, manganese, and concentrations of macronutrients including nitrogen, potassium, and phosphorus as main parameters affecting the soil quality. Sampling was performed on grids 250 × 250 meters in 35 points of the depth of 20 cm. After data normalization, experimental semivariograms was drawn. For Kriging and Cokriging estimation we utilized spherical, exponential, circular, and Gaussian models, and to estimate variables using Inverse Distance Weighting, the parameters of 1-5 power was used. Kriging method was found to the two other methods for estimation of soil properties under study. For the estimation of electrical conductivity and soil’ iron content, the Kriging and Cokriging showed the best estimation of results. However, to estimate the other parameters of soil (sand, organic carbon, pH and lime) inverse distance weighting method with power one was found to have the least error leading to the best interpolation. Finally, considering the best method of interpolation, zoning maps of soil quality properties was created in the GIS.</p> Mohammad Ali Nikpey Mahdi Sedighkia Mohammad Bagher Nateghi ##submission.copyrightStatement## 2017-10-29 2017-10-29 5 3 01 15 Impact of Azolla caroliniana and A. pinnata as soil amendments on Rotylenchulus reniformis and plant growth of cowpea in Egypt <p>Two Azolla species, <em>Azolla caroliniana</em> and <em>A. pinnata </em>were evaluated throughout two successive seasons (2015 &amp; 2016) as green manures on <em>Rotylenchulus reniformis </em>and plant growth of cowpea cv. Baladi under greenhouse conditions (25±5°C). The substrates were applied at the rates of 25 and 50 gm of dry material of each species / pot. The use of <em>A. caroliniana</em> and <em>A. pinnata </em>significantly (P = 0.05, 0.01 levels) succeeded in reducing the number of swollen females and number of egg-laying females and also significantly (P = 0.05, 0.01 levels) improved cowpea growth when compared with those of the check. The use of <em>A. pinnata </em>significantly (P = 0.05, 0.01 levels) reduced the number of swollen females and number of egg-laying females per plant, at both rates, when compared to <em>A. caroliniana</em>. Also, the growth of cowpea plants was affected due to the application of <em>Azolla</em>. Addition of <em>&nbsp;Azolla</em> to the plant caused a remarkable increase in the cowpea growth. The higher dose of each <em>Azolla</em> species was significantly (P = 0.05, 0.01 levels) more effective than the lower one. In general, the use of dry materials of <em>A. pinnata</em> resulted in increase in the plant growth, more than <em>A. caroliniana</em>.</p> Ahmed El-Sayed Ismail ##submission.copyrightStatement## 2017-10-28 2017-10-28 5 3 10 14 Impacts of pyriproxyfen, flufenoxuron and acetone extract of Melia azedarach fruits on the hemolymph picture of the black cutworm, Agrotis ipsilon (Hufnagel) (Lepidoptera: Noctuidae) The black cutworm, Agrotis ipsilon, is a serious agricultural insect pest worldwide. In Egypt it has acquired resistance against most of the applied conventional pesticides. Therefore, the present study aimed to investigate the effect of pyriproxyfen, flufenoxuron, and acetone extract of Melia azedarach fruits on the total haemocyte count (THC), percentage of haemocyte viability and percentage of each type of haemocyte (differential haemocyte count; DHC) in A. ipsilon last instars. For this purpose newly molted 4th instars were treated with the LC50 of these compounds based on the leaf-dip method. THC was conducted with Neubauer haemocytometer. Flufenoxuron significantly increased both the THC and their viability compared to the untreated control. There are five types of haemocytes in A. ipsilon larvae: prohaemocytes, plasmatocytes, granulocytes, spherulocytes and oenocytoids. Both pyriproxyfen and flufenoxuron significantly increased the number of granulocytes and oenocytoids compared to the control. Also, granulocytes were significantly increased in larvae treated with acetone extract of M. azedarach fruits. On the contrary, this extract significantly decreased the number of spherulocytes and oenocytoids compared to the control. Plasmatocytes were significantly decreased in pyriproxyfen–treated larvae. In conclusion, flufenoxuron and acetone extract of M. azedarach fruits may stimulate the cellular immune system of A. ipsilon larvae via increasing the number of phagocytic granulocytes, in addition to increasing the haemocyte viability with flufenoxuron. On the other hand, pyriproxyfen may act as immunosuppressant to A. ipsilon where it suppresses the number of phagocytic plasmatocytes although this compound had no significant effect on haemocyte viability. El-Sayed H. Shaurub M. M. Sabbour ##submission.copyrightStatement## 2017-10-27 2017-10-27 5 3 01 09 Studies on the Growth and Forage Production of Some Atriplex Species Under Different Levels of Salinity This investigation was carried out during the two seasons of 1999/2000 and 2000/2001 to study the growth and forage production of some Atriplex species under different levels of salinity. The most important results could be summarized as follows: Both numbers of leaves as well as branches /plant, Leaf Area Index (LAI), average of both fresh and dry weights per plant (g) was significantly differed due to Atriplex species under study. Salinity concentration evidently affected all vegetative characters of Atriplex plant. It was found that increasing salinity levels caused some losses in the growth and forage production in the two seasons. Relevant results clearly indicated that Atriplex species differed among themselves as crude protein of leaves and stems was concerned since A. nummularia surpassed the other species due to this trait. Salinity levels affected the crude protein content (%) especially that of leaves since higher salinity levels caused lower protein (%) in both leaves and stems. Atriplex nummularia proved to be the most suitable specie among all the species involved in the present study. The growth status of this plant was improved as salinity level was increased up to 0.8% and then began to decrease due to higher salinity levels since the least growth and forage production were recorded due to the higher salinity level of 2.9% NaCl. Ahmed Kandil Ahmed Attia Ali Fahmy ##submission.copyrightStatement## 2016-12-28 2016-12-28 5 3 53 63