Advances in Agricultural Science http://aaasjournal.org/submission/index.php/aaas <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: <a href="http://aaasjournal.org">http://aaasjournal.org</a></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="http://aaasjournal.org/submission/index.php/aaas/user/register">register</a>&nbsp;as an Author.&nbsp;After that, when you<a href="http://aaasjournal.org/submission/index.php/aaas/login">&nbsp;login</a>, you will be taken to your Dashboard,&nbsp;<strong>or send your manuscript via Email-&nbsp;aaasjour@gmail.com (E-mail addresses for all authors are required) </strong>&lt;&lt;&lt;</span></span></p> <p>&nbsp;</p> en-US aaasjour@gmail.com (Advances in Agricultural Science Editorial Office) Sat, 15 Dec 2018 20:59:30 +0330 OJS 3.1.0.1 http://blogs.law.harvard.edu/tech/rss 60 Contextual Determinants of Learning Behaviour Differentials amongst Host-farmers of University-Student Outreach in Uganda http://aaasjournal.org/submission/index.php/aaas/article/view/132 <p>In Sub-Saharan Africa, a knowledge void still exists on two contextual questions of university-community outreach: 1) how social demographics differences are related to farmer learning behaviour towards student outreach, and 2) how student outreach models compare with public and non-public extension services. A cross-section survey was used to obtain data from a sample of 283 respondents purposively selected from previous hosts of student outreach of Gulu University in Uganda. Results from Kruskal-Wallis method revealed that there were significant differences among host-farmers with respect to farmstead distance to the university for knowledge sharing (?2 (2) = 8.5; P &lt; 0.05) and giving feedback (?2 (2) = 7.6; P &lt; 0.05). Regarding the experience of participating in outreach program, significant differences among host-farmers were found in seeking information (?<sup>2</sup> (2) = 12.3; P &lt; 0.01); knowledge sharing (?<sup>2</sup> (2) = 10.4; P &lt; 0.01); seeking feedback (?<sup>2</sup> (2) = 16.4; P &lt; 0.01) and giving feedback (?<sup>2</sup> (2) = 8.1; P &lt; 0.05). Further, Friedman test results showed that host-farmers perceived the university-student outreach to be superior and significantly different from public and non-public agricultural extension. We conclude that university outreach is a useful service to farmer. However, its success in facilitating farmer learning is dependent on farmstead distance to the university and farmers’ level of experience of participating in university activities. We recommend more logistical support from governments to university outreach programs so that outreach services can efficiently complement public and non-public interventions in delivering community-based training and learning approaches.</p> Stephen W. Kalule, Haroon Sseguya, Duncan Ongeng, Gabriel A. Karubanga ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc/4.0 http://aaasjournal.org/submission/index.php/aaas/article/view/132 Mon, 14 Jan 2019 17:19:08 +0330 Geometric morphometrics study of wing shapes in the Calliptamus barbarus (Orthoptera: Acrididae) http://aaasjournal.org/submission/index.php/aaas/article/view/136 <p><em>Calliptamus barbarus</em> (Orthoptera: Calliptaminae) is a most polymorphic species with one (1S) or three (3S) femoral spot. In the previous studies, comparisons of the two forms were made. In previous studies, different authors have attempted to compare the two forms of this species based on the morphology of the inner surface of the posterior femur (red or orange), classical morphometry, isolation reproductive, sound production, enzymatic and biochemical characters and recently a phyllogenic study based on the use of mitochondrial DNA. In order to distinguish these forms between them we conducted a landmark-based geometric morphometric analysis on right and left elytra via the Generalized Procustes Analysis (GPA). This method allowed us to quantify the asymmetry of the elytra and identify shape changes between the two forms. It is performed by three mathematical operations: rotation, translation and scaling using the TPS software. Eleven landmarks were chosen at vein intersections. The obtained results show that the landmarks 4, 5 and 6 had&nbsp; low&nbsp; amounts of variability, but in general the displacement of&nbsp; landmark 11 on 1 and 3S form of <em>C. barbarus</em> is not very important. Thus the modifications of the wing shape between forms are slight. The effect of sex (male, female) and chromatic polymorphism on the wing asymmetry were not significant. This means that there is only one kind of asymmetry – a fluctuating asymmetry, and it is entirely due to development stress.. &nbsp;</p> Rouibah Moad, Amel Hamouda, Nadjet Badache ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc/4.0 http://aaasjournal.org/submission/index.php/aaas/article/view/136 Fri, 28 Dec 2018 21:20:01 +0330 Performance of non-puddled transplanted boro rice following mustard in a reduced rate of phosphorous and potassium fertilizer in Northern Bangladesh http://aaasjournal.org/submission/index.php/aaas/article/view/127 <p><em>Boro</em> rice production in Bangladesh, which almost completely depends on irrigation water, is becoming less profitable and less sustainable because of the high cost of cultivation and the inefficient use of inputs such as water, labor, fertilizer, and energy. Shifting from puddled to non-puddled <em>boro</em> rice after a mustard crop may help advance the <em>boro</em> transplanting early, reducing the tilling cost and improving the soil fertility by less disturbance of the soil. The non-puddled <em>boro</em> transplanting, including zero tillage or reduced tillage, has not been practiced by farmers yet. Therefore, we conducted an experiment in twelve farmers’ fields in northwestern Bangladesh to evaluate the performance of different non-puddled tillage operation and fertilizer management on <em>boro</em> rice production. The experiment tested three tillage systems (zero till, one pass till, and two passes till) and three level of fertilizer management (recommended N,P,K,S; reduced 50% P, and reduced 50% K) in a split-plot design.&nbsp; Zero-till produced the similar crop yield to the one or two pass till which was 5.9 t ha<sup>-1</sup> and this yield was similar to the yield potentiality of the used cultivar. Fertilizer management recommended doses of&nbsp; N,P,K,S produced the maximum yield (6.1 t ha<sup>-1</sup>) and reduced 50% K fertilizer has the similar yield (6.0 t ha<sup>-1</sup>) to the recommended dose. The profitability was similar among all non-puddled tillage systems. The recommended N,P,K,S fertilizer, and reduce 50% K have similar net profit and the benefit-cost ratio (BCR); however, reduced 50% P had lower net profit and BCR than the recommended N,P,K,S fertilizer, and reduce 50% K. &nbsp;</p> Md. Abu Abdullah Miajy, M. Jahangir Alam, Md. Hazrat Ali, Sharif Ahmed ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc/4.0 http://aaasjournal.org/submission/index.php/aaas/article/view/127 Sat, 15 Dec 2018 17:56:45 +0330 Vegetable cropping systems in Southern Benin: cultivated plant diversity, agricultural practices and implications for better production http://aaasjournal.org/submission/index.php/aaas/article/view/135 <p>In the context of urban agriculture, cropping vegetables constitute an important economic activity for farmers and food source for a population. Few studies have investigated in how these systems are organized. The objective of this study is to determine the diversity of vegetables cultivated in south of Benin and to assess the structure of the production systems in terms of soil fertilization and pest management. In the three most important vegetable producing zones (Cotonou, Seme, Grand-Popo), in southern Benin, we surveyed vegetable farmers. The results showed 26 vegetable species in producing systems. Vegetable producing sites, sociolinguistic groups and education of farmers didn’t influence the vegetable diversity but influenced the density of vegetable species. The majority of vegetable farmers (45%) did not receive training on vegetable agricultural practices. Some farmers were trained by agricultural trainers (18%) and neighboring farmers on the sites of vegetable production by their colleagues (5% at Seme and 5% at Houeyiho). <em>Capsicum amum</em>, <em>Solanum macrocarpon,</em> <em>Allium cepa</em>, <em>Solanum licopersicum</em> were the main cultivated plants with the highest cropped surfaces. These cropped plants were followed by the <em>Lactuca sativa</em> and <em>Daucus carota</em>. The aromatic plants were lowest cropped in these vegetable cropping systems. Vegetable farmers used mainly organic fertilizers and few mineral fertilizers. Pest management remains a challenge and pesticides were used on 80% chemical products. It is necessary to train the vegetable farmers on innovate pest management using few chemical pesticides. &nbsp;</p> Anicet Dassou, Naesse Adjahossou, Cyrille Tchakpa, Sena Vodouhe, Alexandre Dansi ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc/4.0 http://aaasjournal.org/submission/index.php/aaas/article/view/135 Sat, 15 Dec 2018 17:50:07 +0330 Phytochemical Accumulation in Photomorphogenesis of Peppermint http://aaasjournal.org/submission/index.php/aaas/article/view/130 <p>The production of phytochemicals due to biotic and abiotic factors are a result of the changes in growth parameters of the plant. Changes in the intensity and quality of light results in alterations of several biochemical and physiological processes of plants and manifests as changes in morphological and anatomical parameters. The relationship between phytochemicals production of peppermint and its growth responses under different photoperiods was determined. Photoperiod significantly affected the number and size of both stomata and capitate and peltate trichomes in leaves. This effect different photoperiod resulted in different numbers of peltate trichomes and different capitate trichome sizes between same surfaces of different leaves and between different surfaces of the same leaf. As a result, we found that the most suitable photoperiod (8 h light / 16 h dark), which improves the amount and content of phytochemicals with parameters changing coordinated with photoperiod change in phytochemical synthesis metabolism of Peppermint.</p> Semra Kilic, Onur Tarakci ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc/4.0 http://aaasjournal.org/submission/index.php/aaas/article/view/130 Thu, 13 Dec 2018 11:51:00 +0330