Abbreviation: Afr. J. Agric. Res.
Start Year: 2006
Published Articles: 5667
DOI: 10.5897/AJAR11.1656[Article Number: 0469A0739970]
This research was done in the Guilan Province. Our statistical populations were the guilanian rice cultivators that cultivated rice in the farming year of 2007 to 2008. The purpose of this article is to compare and study the production average (function) and income of two groups of farmers which culture the productive figures and native ones. Finally, we identified and classified the factors which are effective in the... Read more.
DOI: 10.5897/AJAR11.1835[Article Number: A4B264F39975]
Soluble solids content (SSC) and pH are two important quality parameters of fruit vinegars. Visible and near infrared (VIS/NIR) spectroscopy was employed to determine SSC and pH of fruit vinegars based on partial least squares (PLS) analysis and least squares-support vector machine (LS-SVM). 300 vinegar samples were prepared. PLS models were developed with different preprocessing methods including no treatment,... Read more.
DOI: 10.5897/AJAR11.1821[Article Number: 63EEE9B39967]
Grain yield in wheat, similar to other plants, is a complex trait that is directly and indirectly influenced by other plant’s characteristics. One of the main goals in wheat breeding programs is to increase the grain yield.Considering the role of crop rotation in the increase of wheat yield, in order to study variations in direct and indirect effects in different rotations, an experiment was... Read more.
DOI: 10.5897/AJAR11.1820[Article Number: 083694F39974]
This experiment was carried out to assess the effects of exogenous enzyme (ROXAZYME®, G2G) supplementation on digestibility of nutrients and metabolisability (ME/GE) in 28-31 days old male Ross 308 broilers. A total of 96 Ross 308 hybrids were allocated randomly to 6 dietary treatments with 4 replicates per treatments, and 4 birds per replicates. In this 3×2 factorial design trial with three different levels... Read more.
DOI: 10.5897/AJAR11.1772[Article Number: FCB0A7739972]
Production of garlic in Serbia is heavily affected by garlic diseases caused by viruses, among which economically most important is Onion Yellow Dwarf Virus (OYDV). An influence of infection of garlic with OYDV on yield components was evaluated. Using DAS ELISA test, OYDV was identified in 30.5% samples. Viral infection significantly reduced parameters of yield quantity and quality. Infected plants decreased height,... Read more.
DOI: 10.5897/AJARX11.071[Article Number: 03AA96039512]
The taxonomic and ecological positions of antibiotic producing actinomycetes are an integral part in antimicrobial agents’ development program. Comprehensive understanding of the organisms give useful insight on the secondary metabolites been produced by them and other activities carried out by them in their habitat. Criteria for the identification of actinomycetes include morphological, physiological, ecological... Read more.
DOI: 10.5897/AJAR10.052[Article Number: 567AF1E39522]
This study was undertaken to determine the spatial variability of pH, organic matter, soil salinity and spear yield of asparagus (Asparagus officinalis L.) in an area of plastic-greenhouse cultivation on Chongming Island, an alluvial island in the Yangtze River Delta and forming part of Shanghai City. Classical statistic and geostatistic analysis were applied. Results showed that, different soil properties... Read more.
DOI: 10.5897/AJAR11.1176[Article Number: 3B2FCFD39546]
The arid and semi arid areas comprise a large percentage of the land area in Africa. Communities in these areas have over the years depended on livestock production for livelihood. Livestock has traditionally served as source of food and a store of wealth in the arid and semi arid areas. However, the challenges posed by the harsh environmental factors, especially climate-change induced shocks are causing significant... Read more.
DOI: 10.5897/AJAR11.1359[Article Number: 64001CC39555]
Studies on soils developed on volcanic materials in Turkey in light of the wide distribution of these soils and soils defined as Andisols in the Soil taxonomy have not yet been recognized in Turkey. The aims of this study were to: i) show whether some Turkish soils developed in volcanic parent materials found on Mt. Karadag (Karaman Turkey) are Andisols and; ii) investigate their pedogenetic development. For this... Read more.
DOI: 10.5897/AJAR11.303[Article Number: 047BFDF39562]
Response of tree ring width to climate factor change is an important part of tree ring ecological research. A tree ring chronology of Cinnamomum camphora (C. camphora) was developed in Dagangshan forest area of Jiangxi Province in southern China. Correlation analysis and response function analysis were used to compare tree ring response to climate. The results showed that the built tree chronology of C.... Read more.
DOI: 10.5897/AJAR11.931[Article Number: 574455A39575]
Fourteen genotypes were studied for grain yield and its stability in different climate of Ardebil, Eqlid, Arak, Zanjan, Tabriz, Mashhad, Jolgerokh, Miandoab, Hamedan and Karadj using randomized complete block design with three replications in two years; results of combined analysis of variance showed that the interaction effects of year × location and genotype × year × location were significant at... Read more.
DOI: 10.5897/AJAR11.2374[Article Number: CA4B6EB39583]
Bush encroachment is an environmental problem in savanna ecosystems, but it is not yet clear whether it is more prevalent in communal or ranching grazing lands. This study investigates bush encroachment dynamics in relation to two rangeland management systems under different environmental conditions in Botswana. Woody vegetation cover (WC) was measured in 10 × 10 m quadrants at 100, 200 and 300 m along 23 transect... Read more.
DOI: 10.5897/AJAR11.2501[Article Number: 494BFAA39589]
Study on drought has been considerably regarded on recent years, due to drought increase in Iran. On the other hand, survey on wetness makes it possible to prevent from it flood risk to some extent and attempts to manage water supplies. In this study, Standardized Precipitation Index (SPI) was used in annual period of time to survey on drought. Also, in order to zonation frequency of drought, geographic information... Read more.
DOI: 10.5897/AJAR11.529[Article Number: A76F87F39630]
This article presents the current situation of tomato consumption worldwide. This paper proposes a new methodology for classifying countries into four main markets, ‘the sustainable market’, the ‘effort market’, the ‘vulnerable market’ and ‘the declining market’. Each market has its own producing and consumption trends and its particular strategies for producing,... Read more.
DOI: 10.5897/AJAR11.577[Article Number: A2D55F539635]
Many organizations have tried to assist farmers in improving returns to forest and tree products but few have systematically tested interventions to improve post-harvest practices or marketing. This paper describes the results of three types of interventions in the market chains for njansang (Ricinodendron heudeloti) and kola (Cola spp), which are important agroforestry derived products for Cameroonian farmers. The... Read more.
DOI: 10.5897/AJAR11.706[Article Number: 3DAF63539653]
The host suitability of 21 local, commercial tomato varieties were evaluated in concurrent greenhouse trials for resistance to Meloidogyne incognita race 2 and Meloidogyne javanica, respectively. M. incognita race-2-resistance identified in variety ‘Rhapsody’ during the latter study was subsequently verified in a follow-up microplot trial using differential initial population (Pi) densities and as well as in... Read more.
DOI: 10.5897/AJAR11.1559[Article Number: 039DE2639962]
In order to determine the appropriate planting density and effect of supplemental irrigation on yield and yield components of peas (Pisum sativum L.), a field study was conducted at the experimental farm at the Faculty of Agriculture, Razi University in 2010. The experiment was carried out in a split-plot based on a Randomized Complete Block Design (RCBD) with three replications. The main plot consisted of... Read more.
DOI: 10.5897/AJAR11.1813[Article Number: 73BBF2539965]
This experiment was conducted in Ardestan University in an experiment based on randomized complete block design with four replications. Each replication consisted of 12 treatments in four fertilizer levels including 2.5 per thousand of Fe-sulfate solution, 2.5 per thousand of Zn-sulfate solution in three stages of growth (4, 8 and 12 leaves). During the experiment, the height of plant, number of stem branches,... Read more.
DOI: 10.5897/AJAR11.2111[Article Number: 1FE819F39968]
The sweet potato (Ipomoea batatas Lam.) under high nitrogen produces excess vines at the expense of storage root. Prohexadione-Ca has been used to reduce vegetative growth and increase harvest efficiency and yield in many fruit and row crops. Using Prohexadione-Ca to reduce vegetative growth in sweet potato may enhance storage root yield and harvest efficiency. This study examined the effects of Prohexadione-Ca on... Read more.
DOI: 10.5897/AJAR11.2313[Article Number: 6CFD34339977]
The study was conducted over a 90 day period to investigate the effects of stocking density on the growth and survival of fry Oreochromis niloticus cultured in hapas in a concrete tank. Fish of average initial weight 0.3 g ± 0.03 were stocked at three different rates: 8, 10 and 12 fish/m3 corresponding to 56, 70 and 84 fish per hapa. Fish were fed twice daily with powdered pito mash at 10% of the... Read more.