Abbreviation: Afr. J. Agric. Res.
Start Year: 2006
Page 1 of 277, showing 20 records out of 5530 total, starting on record 1, ending on 20
DOI: 10.5897/AJAR2017.12354[Article Number: 923653C65278]
Molecular markers have proven to be powerful tools in research related with diversity, variability, and improvement of economically important tropical crops. This study analyzed eight physiological and morphological fruit characters of economic interest in the cultivated Mexican guava (Psidium guajava L.), and assessed the suitability of two sequence specific amplified polymorphism (SSAP) and simple sequence repeat... Read more.
DOI: 10.5897/AJAR2017.12472[Article Number: 4C2756E65281]
Castor oil is an important raw material used in a diverse range of chemical products with high added value. From a collection of Mexican grown seeds from the castor plant (Ricinus communis), 18 accessions with a high potential for oil production and panicle indehiscent were selected and cultivated. The variability was studied from three aspects: seed yield, seed composition and the oil quality, through 22 descriptors... Read more.
DOI: 10.5897/AJAR2017.12418[Article Number: 3D843AF65283]
Weed has become one of the most serious problems in dry seeded rice (DSR). To increase the competitiveness with weeds and achieve the optimum growth of rice, weed management in DSR needs an integration of herbicides and optimum nitrogen (N) fertilizer rates. In this study, the bioassay species were treated with a series of pre-emergence (pretilachlor and pendimethalin) and early post-emergence (propanil+thiobencarb)... Read more.
DOI: 10.5897/AJAR2017.12443[Article Number: 676F29965285]
The paper analysed the profitability and resource use efficiency of boro rice cultivation in Bogra district of Bangladesh using farm level survey data of April-May, 2016. In total 103 farmers were selected randomly from the study area. Result based on Farm Budgeting model showed that per hectare variable cost and total cost of production was BDT (Bangladeshi Taka) 57,583 and BDT 71,208 respectively. Average yield was... Read more.
DOI: 10.5897/AJAR2016.11092[Article Number: AD5FDD665317]
Inefficient management practices lead to soil organic matter depletion, structure breakdown and increased erosion. This has resulted into low crop yields of sub-Saharan Africa. Conservation agriculture (CA) is being considered as a potential system having the capability of improving soil quality and providing stable yields. A study was therefore conducted, at Chitedze Research Station-Malawi, to evaluate medium term... Read more.
DOI: 10. 5897/AJAR2016.11942[Article Number: CF1AC8065319]
Some winter crops sown in no-tillage system can represent an important alternative to nutrient cycling. The objective of this work was to evaluate the production of dry matter (DM) and accumulation of nutrients for winter cultivation in the West of Paraná. The experimental design was a randomized block, with four treatments and six replications. The treatments were represented by four different winter crops (oat... Read more.
DOI: 10.5897/AJAR2016.11659[Article Number: EC24F1565226]
Information on crop water requirement of crops is vital for irrigation water planning. In the central parts of Ethiopia, agriculture has solely been dependent on rain-fed until recent time that irrigation for vegetable production is becoming one activity for crop production. However, irrigation practice in terms of the amount of water to be used and frequency of application has lacked proper knowledge. The purpose of... Read more.
DOI: 10.5897/AJAR2016.11905[Article Number: 1A64AE665230]
Glyphosate, 2,4-D, imazethapyr and paraquat + diuron were studied in greenhouse experiments at four application rates in order to evaluate their effects on white clover (Trifolium repens L.) growth and aerial shoot injury at three different phenological stages. Herbicide-induced foliar injury on white clover ranged from no symptoms to early chlorosis, leaf necrosis, stunted growth and death depending on herbicide... Read more.
DOI: 10.5897/AJAR2017.12459[Article Number: 8FDB66F65234]
Animal production in the Azores is conditioned by the cycles of grass production. In a situation when lack of fiber for animal feed occurs, low quality fibrous foods become relevant. For these reasons, Hedychium gardnerianum (ginger lily), a well-known and traditional source of fiber used by Azorean farmers have been studied. The plant material was subjected to treatments with 5% dry matter (DM) with urea, 3% DM with... Read more.
DOI: 10.5897/AJAR2017.12264[Article Number: 41B412365238]
The effect of pineapple by-product silage as a substitute for elephant grass on carcass yield, commercial cuts and non-carcass components was evaluated in 25 castrated male Santa Inês feedlot finishing lambs. The lambs had an initial body weight of 18.0±3.4 kg, and they were fed four pineapple by-product silage concentrations (0, 25, 50, 75 and 100%) distributed in a completely randomized design with five... Read more.
DOI: 10.5897/AJAR2017.12510[Article Number: BBFC78E65268]
Predatory arthropods, especially spiders, play a vital role in the control of insect pests in agro-ecosystems. Accordingly, two year field study was conducted at the Longyan Substation of Fujian Institute of Tobacco Agricultural Sciences in China to determine the effects of garlic and tobacco intercropping system on spiders and predatory arthropods. A total of 545 and 860 (in 2011 and 2012, respectively) individuals of... Read more.
DOI: 10.5897/AJAR2017.12234[Article Number: 614E19965270]
Synthetic amino acid supplementation has provided facilities in the adjustment of feed formula, making it possible to obtain the required levels of essential amino acids. Lysine is pronounced the second greatest restrictive amino acid in broiler nutrition. The synthetic amino acid lysine is used as the orientation amino acid in poultry for the reason that it is mainly consumed for protein synthesis. In order to... Read more.
DOI: 10.5897/AJAR2017.12216[Article Number: 9EACF6465081]
The aim of the current study was to determine the chlorophyll relative index (CRI) in different leaves and phenological stages of the crop in order to diagnose the status of nitrogen (N) in corn (Zea mays L.) hybrids as a function of N rates applied in bands correlating them with N content in the leaves and crop productivity. The field experiment consisted of two corn hybrids (P30R50 and AG8025) and 6 N rates applied in... Read more.
DOI: 10.5897/AJAR2017.12375[Article Number: 29FBEC865084]
Notwithstanding the nutritional, economic and fisheries importance of Chrysichthys nigrodigitatus, and its relatively high abundance and propagation in Lake Ahozon (South Benin), nothing is known about the well-being of the species in this water body. Thus, this study investigated length and weight frequency distributions, length-weight relationships and condition factors of C. nigrodigitatus. A total of 1020... Read more.
DOI: 10.5897/AJAR2017.12442[Article Number: 2EE2FF565086]
The incidence and severity of sweetpotato virus disease (SPVD) was reported to be highly variable under different agroecological zones in Uganda, a situation that could be partly attributable to differences in temperature. This raised a need for understanding the effect of temperature on the biology of SPVD causative agents which ultimately influences disease development and symptom expression that undermines... Read more.
DOI: 10.5897/AJAR2017.12488[Article Number: 361DAA965103]
The main objective of this paper was to analyse to what extent the Brazilian agricultural exports responds to changes in the real exchange rate and in the world income for the 2000 to 2014 period (monthly). The results showed that the coefficient of the value of agricultural exports in relation to the exchange rate was inelastic in the long run (0.2540). However, the adjustment coefficient of the exported value in... Read more.
DOI: 10.5897/AJAR2017.12132[Article Number: 8ECB46565105]
Climate change has become global issue for crops due to increase in temperature and less rainfall resulting in shortage of water and decrease in yield. The experiment consisted of five guar (Cyamopsis tetragonoloba L.) genotypes viz. S-5744, S-5824, S-5785, BR-90, BR-99 were cultivated under irrigated and drought stress (only soaking dose) conditions using Randomized Complete Block Design (RCBD) with 3 replications. The... Read more.
DOI: 10.5897/AJAR2017.12421[Article Number: 4D7E0A964989]
This study was done in Nyando, Kenya to model maize production under different climate scenarios and project the yields up to 2030 and 2050 using Decision Support System for Agrotechnology Transfer (DSSAT) under rain fed conditions. Three maize varieties were used; Katumani Comp B as early maturing variety, Hybrid 511 as a medium maturing variety and Hybrid 614 as a late maturing variety. Global coupled model Hadley... Read more.
DOI: 10.5897/AJAR2017.12422[Article Number: CD0E48F64991]
Late blight of tomato (Solanum lycopersicum L.) caused by the heterothallic oomycete Phytophthora infestans (Mont.) de Bary, is one of the most destructive and serious diseases of tomato in cool and wet environments. Tomato breeders have developed late blight-resistant tomato lines and cultivars based on Ph resistance genes derived from S. pimpinellifolium, but resistance can be short-lived because P. infestans is... Read more.
DOI: 10.5897/AJAR2017.12377[Article Number: 34BBB1564995]
A field experiment project was conducted in Karawang District, Indonesia from April to October, 2016 in the search of efforts to optimize degraded steep upland paddy field and paddy yield. The experinment was designed under no tillage practices and statistical randomized block were applied with two factors, that is, banana leaf mulch, and worms where each factor is varied into four levels of treatments with three... Read more.
Page 1 of 277, showing 20 records out of 5530 total, starting on record 1, ending on 20