June 2011
Calibrating the leaf color chart for rice nitrogen management in Northern Iran
The high and inefficient use of Nitrogen (N) fertilizer continues to be a problem in rice (Oryza sativaL.) cultivation sites in Northern Iran. The leaf color chart (LCC) based N management can be used to optimize N application with crop demand or to improve existing fixed split N recommendations. We conducted a field experiment in 2008 at Amol region of Northern Iran, to determine the LCC critical value for N...
June 2011
Effect of ethyl methane sulfonate（EMS）in in vitro mutation on anther-derived embryos in loquat (Eriobotrya japonica Lindl.)
A series of experiments were carried out to investigate the effects of ethyl methane sulfonate (EMS) as an in vitro mutation mutagen using the anther-derived embryos of loquat (Eriobotrya japonica Lindl) which had been newly developed in the laboratory for the first time in the world. The results showed that EMS treatment caused changes in vitality and conformation of the anther-derived embryos. All EMS treatments...
June 2011
The dietary importance of maize in Katumba ward, Rungwe district, Tanzania, and its contribution to household food security
Maize is one of the main staple food crops in Katumba ward. The dietary importance of maize in Katumba ward was investigated through studying the importance of maize as a source of food, nutrients and energy in using secondary data and face to face structured and semi- structured interviews that were administered using a questionnaire to 260 farm households that were randomly selected for the study. The aim of the study...
June 2011
The mature wheat cut and uncut edge detection method based on wavelet image rotation and projection
For combine harvester, automatically and promptly recognizing the cut and uncut edge of guideline is the key technology to realize autonomous navigation based on vision machine. One novel method termed wavelet image rotation and projection algorithm has been established. It includes the following essential steps. Firstly, 23 scale of wavelet transforming was selected because of intrinsic characteristics of...
June 2011
Population density and distribution of green monkey (Cercopithecus aethiops. linnus 1758) at Zugurma sector of Kainji lake national park, Nigeria
The population densities and distribution of green monkey (Cercopithecus aethiops) at Zugurma sector of Kainji lake national park were investigated. Transects were taken within the vegetation zones. Animal census was carried out by using road count and ground survey between 6.30 - 12.00 h in the mornings and between 15.00 - 18.30 h for six months. Other information recorded were the number of troops, the...
June 2011
Growth performance and haematological characteristics of West African Dwarf (WAD) sheep fed graded levels of dietary pigeon pea seed meal
This study was conducted to evaluate the effects of dietary pigeon pea seed meal on the growth performance and haematological characteristics of West African Dwarf (WAD) sheep. Four diets were formulated to contain pigeon pea seed meal (PSM) at 0, 10, 20 and 30% levels, representing diets A, B, C, and D, respectively. Twelve weaned rams averaging 8.57 kg body weight and aged 7-8 months were used in the study. The rams...
June 2011
Roughage to concentrate ratio on milk secretion rate in goats
An experiment to evaluate the effect of concentration ratio (R:C) on milk secretion rate (g/h) in goats was carried out using a cross-over design in which each goat passed sequentially through all the treatments in random order. The treatments (R:C) were: A = 70:30; B = 50:50 and C = 30:70. In this experiment, 13 goats were fed at 5% body weight (DM basis) using fresh-cut elephant grass (Pennisetum purpureum) and a...
June 2011
Can markets deliver the dual objectives of income generation and sustainability of natural resources in Uganda?
In this study, we set out to determine whether strategies used to link farmers to markets resulted in household level livelihood and NRM impacts measured by the participation in the market and the value of sales from the markets. Farmer to market linkages have improved livelihoods in developing countries due to policy, institutional and implementation strategies, however, equal emphasis has not been placed on...
June 2011
Identifying factors affecting agroforestry system in Swat, Pakistan
This study has identified factors that affect the adoption of agroforestry practices; these include farmers' perceptions towards agroforestry, socio-economic characters of farmers and constraints for the development of agroforestry. The analysis of data demonstrates that the factors affecting farmers’ adoption of agroforestry practices have been varied depending on the type of factor. Growing of trees was...
June 2011
Performance evaluation of an irrigation project with reference to its irrigation objectives
During the late 1950s in India several river valley projects were started for irrigation and power generation. One such project is the Malampuzha project, the largest irrigation project in Kerala state. The project started functioning in 1956. It was expected to cater the irrigation need of 22554 Ha of rice paddy in Palakkad district. The present study is an attempt to evaluate the project by focussing on its original...
June 2011
Limnology wetland change trends and perspectives in arid Yinchuan plain, China
In this paper, the distribution area of limnology wetland in Yinchuan plain at different times was obtained through literature analysis and remote sensing techniques. This study analyzed the evolution process of limnology wetland in Yinchuan plain under environmental change and human socio-economic activities interference. In its long geological period, limnology wetland in Yinchuan plain has experienced the process of...
June 2011
Genetic relationships among Jatropha curcas L. clones from Panzhihua, China as revealed by RAPD and ISSR
Although Jatropha curcas L. is known as a source of oil-rich seeds as economically viable substitute of diesel, little is currently known about the genetic resource of J. curcas in China. In this study, RAPD and ISSR data were utilized to determine the genetic relationships among J. curcas clones from Panzhihua, China. Five RAPD and twelve ISSR primers generated reproducible amplification...
June 2011
Indigenous soil knowledge relevant to crop production of smallholder farmers at Rambuda irrigation scheme, Vhembe District South Africa
Rambuda Irrigation Scheme is found in the Mutale Local Municipality in Vhembe District of the Limpopo Province. There is no information on soils or basis for crop choices. Farmers have been growing crops on a trial and error basis and consequently no increase in yields. Situation analysis was conducted followed by field surveys that included person-to-person interview and participatory soil mapping. Verification of...
June 2011
The effect of planting date and seedling age on yield and yield components of rice (Oryza sativa L.) varieties in North of Iran
In order to study the effects of seedling age and planting date on yield and yield components of rice (Oryza sativa), a field experiment was carried out in the field of Qaemshahr Azad University. Experimental design was arranged in split split plot in basis of Randomized Completely Block design with four replications. Planting date in three levels (23 May and 12 June) were allocated in the main plots and seedling age in...
June 2011
Assessment of the impact of kerosene and diesel on soil nitrogen mineralisation
Effects of different concentrations (1, 2 and 5% v/w) of diesel and kerosene on N mineralization were studied in a sandy loam soil. Relative to the untreated soil, higher ammonium-N levels were obtained in samples treated with all the concentrations of kerosene and diesel from the second and third weeks of incubation respectively while extents of nitrate-N production differed. Net N-mineralization was 17.211 mg...
June 2011
Soil seed bank dynamics in relation to land management and soil types in the semi-arid savannas of Swaziland
In the semi-arid savannas of Swaziland, communal grazing, commercial ranches and game reserves are the main land management systems for animal production. These land uses can have different ecological effects on the rangelands. This study was conducted to investigate the differences in soil seed bank characteristics between three land management systems having high (communal land), low (government ranch) and medium...
June 2011
Energy survey of mechanized and traditional rice production system in Mazandaran Province of Iran
The aim of this study is to consider the energy consuming process and factors influencing rice production in semi-mechanized and traditional systems in Mazandaran Province of Iran. Data used in this study were obtained from farmers using a face to face questionnaire method. Results showed that the total energy used for semi-mechanized and traditional rice production system was 67217.95 and 67356.28 MJ/ha, respectively....
June 2011
Characterization of paddy soil compaction based on soil apparent electrical conductivity zones
Soil apparent electrical conductivity (ECa) is one of the most common and frequently used measurements to determine field soil variability, especially for precision farming. Soil cone index (CI) is a measure of soil compaction that poses a big challenge for water management in poorly drained soils. The soil compaction affects the root penetration and development of the rice plant. The purpose of this study was to...
June 2011
Bacterial pathogens of intramammary infections in Azeri buffaloes of Iran and their antibiogram
The aim of this study was to determine the bacterial causes, their antibiogram and prevalence of intramammary infection (IMI) in the buffaloes and quarters of Azeri ecotype in Tabriz, Iran and assess any relationships between IMI and somatic cell count (SCC). After conducting California Mastitis Test (CMT) in farms, quarter- based milk samples were collected from 300 buffaloes. Also 150 samples were collected for...
June 2011
Use in vitro gas production technique for assessment of nutritional quality of diets by range steers
This study evaluated the seasonal changes in the in vitro gas production of diets consumed for grazing steers. The gas produced by the soluble fraction “a” and insoluble but slowly fermenting fraction “b”, were highest in summer and fall (p<0.01). The constant gas production rate “c” was affected by season of the year (p<0.01). The organic matter digestibility (OMD)...
June 2011
Genetic dissection of yield and its components in upland cotton (Gossypium hirsutum L.)
A 4x4 diallel cross experiment involving three exotic lines that is DPL-775, 71-821 Bulk-OP and Coker-100/A-2 and one local line that is MNH-53, was conducted for genetic analysis of yield and its components in upland cotton, to evaluate the gene action for different agronomic and fiber characters in upland cotton. Additive gene action with partial dominance appeared to control plant height, number of sympodial...
June 2011
The effect of endo-mycorrhiza (VAM) treatment on growth of tomato seedling grown under saline conditions
This study was carried out in order to determine the effects of various study doses of mycorrhiza treatment on morphological characteristics and color quality of tomato seedlings (Lycopersicon esculentum L.) which are grown under 100 nM salinity stress. Two different types of tomatoes “Aspendos F1” and “Donna F1” were used in this study. Mycorrhiza treatment was performed by using...
June 2011
Rabbit technologies: Adoption studies in the Ashanti Region of Ghana
The study focused on identifying the main factors affecting the adoption of technologies in the rabbit industry. Data was collected through the use of the snowball sampling technique. The stocking technology was the highest adopted technology by the rabbit farmers. There is a clear evidence to prove that overall adoption of rabbit technologies among rabbit farmers was low. Adoption of rabbit technologies was...
June 2011
Fuzzy irrigation greenhouse control system based on a field programmable gate array
Fuzzy logic provides a methodology to represent, manipulate, and implement heuristic knowledge to control a system. In this work, the development of a fuzzy irrigation control system based on a field programmable gate array (FPGA) to control greenhouse fertigation was presented. Factors involved in crop nutrition were discussed first. Next, the description of the fuzzy control system was presented, followed by the...
June 2011
Input-output energy analysis of citrus production in Mazandaran province of Iran
In this study, the citrus (orange and mandarin) production in Mazandaran province of Iran and the energy equivalences of input used in this production are investigated. Data in this study was obtained from 110 citrus orchards by a face to face questionnaire method. The results revealed that mandarin production had more energy intensive compared to orange. The major energy inputs in orange and mandarin production were...
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