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167 articles for “replication”
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Research ArticleOpen accessIn the abstractWheat Resistance to the Adult Insect of Sunn Pest, Eurigaster Integriceps PutNima Sanaey, Tohid Najafi MirakSunn pest is one of the most serious pests of wheat and barley in Asia, North Africa and Eastern Europe. Using of resistant cultivars is an effective strategy for Integrated Pest Management (IPM). In order to identify the resistant wheat to sunn pest, 79 Iranian bread and durum wheat cultivarslines were evaluated for resistance to natural infestations of sunn pest … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 1 · 15 Feb 2012 · 8,657 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssessing Forest Plantation Productivity of Exotic and Indigenous Species on Degraded Secondary ForestsYetti Heryati, Arifin Abdu, Mohd Noor Mahat et al.Problem Statement: There is general agreement that human activities such as deforestation and land use change to other land use types have contributed to degraded secondary forests or forestland and increases the emission of greenhouse gases which ultimately led to global climate change. An establishment of forest plantation in particular is regarded as an important approach for sequestering carbon. However, … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 2 · 6 Jun 2011 · 10,520 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance of Hevea brasiliensis on Haplic Ferralsol as Affected by Different Water RegimesShafar Jefri Mokhatar, Noordin Wan Daud, Nazera ArbainProblem statement: Rubber has been grown more than a century in South East Asia, who has been the largest producer of natural rubber. Demand of natural rubber increases steadily due to increasing demand particularly from developing countries. Water has been a limited and invaluable resource especially in agriculture. This resource has to be used wisely and there is a need … …American Journal of Applied Sciences, Vol. 8, Issue 3 · 25 Mar 2011 · 8,909 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudy on Nitrogen Concentration of Corn HybridsPravin Gautam, Dawn Gustafson, Zeno Wicks IIIProblem statement: Though Nitrogen (N) is vital in different physiological and developmental processes in plants and animals, it poses several environmental, nutritional and health problems, if present in excess amounts. Reduction in excess input of N into the soil, thereby reducing environmental problems and consequently nutritional and health problems, can be achieved by balancing their concentration in animal feed. Therefore, … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 1 · 10 Mar 2011 · 8,276 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Hevea brasiliensis (Latex Timber Clone: RRIM 2001 and RRIM 3001) in Relation to Different Water StressShafar Jefri Mokhatar, Wan Noordin Daud, Nursyazwina Md ZamriAbstract: Problem statement: Rubber, Hevea brasiliensis, has been traditionally planted in the humid tropics, which is characterized by high rainfall throughout the year. However, due to an increase in world’s demand for rubber, future planting will be established in dry areas, characterized by prevalence water stress. Utilizing limited resource, in dry areas or to use water wisely is very important. … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 1 · 31 Jan 2011 · 10,913 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrediction Model of Leaf Area in Soybean (Glycine max L.)Mohammad Nabi Ilkaee, Farzad Paknejad, Mohsen Zavareh et al.Abstract: Problem statement: Measure of leaf area by means of leaf area Meter is very expensive and difficult. Hence obtain of one simple model for calculate of leaf area in soybean (Glycine Max L.) is very necessary. Approach: In order to develop a suitable simple model for calculation of leaf area by means of leaf length and width, a Randomized … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 1 · 31 Jan 2011 · 8,674 accessesView PDFCite
Research ArticleOpen accessIn the abstractField Assessment of Anthracnose Disease Response for the Sorghum Germplasm Collection from the Mopti RegionJ. E. ErpeldingProblem statement: Sorghum anthracnose (Colletotrichum sublineolum) is a highly variable pathogen and new sources of host plant resistance are required for the development of resistant sorghum varieties. Germplasm collections are an important source of host plant resistance and screening germplasm will be essential to identify new sources of resistance. Approach: The sorghum (Sorghum bicolor) collection from the Mopti region of … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 3 · 30 Sep 2010 · 8,217 accessesView PDFCite
Research ArticleOpen accessIn the abstractEstimation under Multicollinearity: A Comparative Approach Using Monte Carlo MethodsD. A. Agunbiade, J. O. IyaniwuraProblem statement: A comparative investigation was done experimentally for 6 different Estimation Techniques of a just-identified simultaneous three-equation econometric model with three multi-collinear exogenous variables. Approach: The aim is to explore in depth the effects of the problems of multicollinearity and examine the sensitivity of findings to increasing sample sizes and increasing number of replications using the mean and total … …Journal of Mathematics and Statistics, Vol. 6, Issue 2 · 30 Jun 2010 · 7,534 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation the Effects of Biological Fertilizer on Physiological Characteristic and Yield and its Components of Corn (Zea mays L.) Under Drought StressBarmak Jafari Haghighi, Zeynab Yarmahmodi, Omid AlizadehProblem statement: This experiment was carried out for study the effects of chemical and biological fertilizers and interaction between them on some physiological characteristic and yield and its components of seed corn in two different irrigation. Approach: The experiment was conducted in a split plot factorial with completely randomized block design using four replications. Sub plots consisted of combined application … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 8,487 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Hairy Vetch (Vicia villosa Roth) in Pure and Mixed Cropping with Barley (Hordeum vulgare L.) to Determine the Best Combination of Legume and Cereal for Forage ProductionSeyedeh, Davood Habibi, Ali Kashani et al.Problem statement: Mixed cereal-legume cropping can supply valuable forage in dry areas, as well as improving soil characteristics to approach sustainable farming systems in these regions. Approach: In order to comprise quality and quantity of produced forage and to determine the best planting ratio in a hairy vetch and barley mix cropping, a two year study was conducted during 2008 … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 9,108 accessesView PDFCite