Browsing 3. Scientific Journals / Naučni i stručni časopisi by Title
Now showing items 329-348 of 405
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Ralstonia solanacearum – a New Threat to Potato Production in Serbia
A survey of ware potatoes (a total of 1127 samples) from localities in Serbia during two consecutive years resulted in detection and identification of R. solanacearum in 17 tuber samples. The monitoring detected the ... -
Raspberry bushy dwarf virus – a Grapevine Pathogen in Serbia
During a field survey in 2005 in vineyards and grapevine nurseries at localities in central Serbia, a few plants with unusual virus-like symptoms were observed. Leaf samples were analyzed by DAS-ELISA for the presence ... -
Rating of Harvester Threshers Case 8120 and New Holland CX 8080
The aim of this work is to review the activity and quality of work of two different combines – CASE 8120 and New Holland CX 8080. The analysis of these two machines is focused on the amount of grain loss, the quality of ... -
Reduction of Spray Losses to Soil in Soybean (Glycine Max L.) Through Optimization of Operational Parameters
Spraying of plant protection chemicals is widely practised for minimizing the losses occurred due to attack of insect pests, and occurrence of diseases. However, indiscriminate and improper use of pesticide has brought up ... -
Reproduction of confused flour beetle Tribolium confusum Du Val (Coleoptera: Tenebrionidae) on common and spelt wheat and their products
The interest in spelt wheat production has grown in recent years but there is hardly any information on pest development on that wheat species in storehouses. The influence of common and spelt wheat and their products ... -
Research of Seeding Distance Uniformity by Response Surface Methodology
The subject of this paper is to optimize the uniformity seeding distances using response surface methodology and validated optimal level variables. Variables are modeled as a vacuum on the seed plate, diameter planting ... -
Residual efficacy of cypermethrin and pirimiphos-methyl against Sitophilus granarius (L.) and Plodia interpunctella (Hübner) on concrete surface
Residual activity of EC formulations of two insecticides, cypermethrin (combined with the synergist piperonyl butoxide) and pirimiphos-methyl, against Sitophilus granarius (L.) adults and Plodia interpunctella (Hübner) ... -
Residual Toxicity of Abamectin, Chlorpyrifos, Cyromazine, Indoxacarb and Spinosad on Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) in Greenhouse Conditions
Liriomyza trifolii is an important pest of vegetable crops in many parts of the world including Iran. In this study potted bean plants were sprayed with recommended field rates of abamectin, chlorpyrifos, cyromazine, ... -
Respiration Rate Models of Fresh Chickpea Sprouts (Cicer Arietinum L.) under Modified Atmosphere Packaging
The closed system glass container headspace gaseous composition, in terms of O2 and CO2 concentrations, in modified atmosphere packaging (MAP) of Chickpea Sprouts (Cicer arietinum L.) at 5, 10, 15, 20 and 25oC temperature ... -
Respiratory Behaviour of Mature Light Green Guava (Psidium Guajava L.) under Closed System
Respiratory behavior is an important aspect in designing and operating systems such as controlled and modified atmosphere storage that will extend the shelf life of the perishable produce. The respiration rate and respiratory ... -
Response of Sorghum halepense L. (Pers.) Populations to Nicosulfuron, Rimsulfuron and Prosulfuron+Primsulfuron-methyl
The effects of herbicides nicosulfuron, rimsulfuron and prosulfuron+primsulfuronmethyl on eight populations of Sorghum halepense L. (Pers.) under controlled conditions were investigated. The herbicides were applied at ... -
Response of Verticillium fungicola var. fungicola, Mycogone perniciosa and Cladobotryum sp. Mushroom Pathogens to Some Essential Oils
Antifungal activity of 18 essential oils was evaluated against Verticillium fungicola var. fungicola, Mycogone perniciosa and Cladobotryum sp., the causal agents of button mushroom diseases. Essential oils including: ... -
Results of Preliminary Laboratory Studies After Pre-Sowing Electric Treatment of Pea Seeds
In many countries, the possibilities for stimulation of the sowing qualities and yield of cultivars after pre-sowing electric treatment of their seeds have already been identified. At the University of Ruse, Bulgaria, ... -
Results of Research of Electrical Resistance of Maize Seed Germs After their Pre-Sowing Electromagnetic Treatment
A pre-sowing electromagnetic treatment of maize seeds was carried out. A laboratory setup was designed for measuring the resistance of maize seed germs at signal frequency 10 kHz. The setup is appropriate for use in the ... -
Results of the Investigation Effects of Soil Compaction on Yield of Winter Wheat
Moving of tractors and mobile systems can be divided in two groups: moving trough the inner parts of fields, and through the headlands. On headlands, soil compressing is more intensive due to lower moving speeds while ... -
Rhagoletis cerasi Loew (Diptera: Tephritidae) – Biological Characteristics, Harmfulness and Control
The European cherry fruit fly, Rhagoletis cerasi Loew (Diptera: Tephritidae), is a highly destructive pest in sweet and sour cherry orchards with a distribution area throughout Europe and the temperate regions of Asia. ... -
Rimsulfuron in Soil: Effects on Microbiological Properties under Varying Soil Conditions
The effects of rimsulfuron a sulfonylurea herbicide on the growth and activity of soil microorganisms under laboratory conditions was investigated in two soils. The application rates were: 0.2, 2.0 and 20.0 mg a.i kg-1 ... -
The Role of the Strategy in the Innovation Ability of the Hungarian Agricultural Machinery Manufacturers
The current production of the Hungarian agricultural machinery manufacturing sector, which used to see better days, lags behind the production of the previous years to a great extent. The organisational structure of the ... -
Screening Test for Detection of Leptinotarsa decemlineata (Say) Sensitivity to Insecticides
In 2009, the sensitivity of 15 field populations of Colorado potato beetle (Leptinotarsa decemlineata Say.) - CPB was assessed to chlorpyrifos, cypermethrin, thiamethoxam and fipronil, four insecticides which are mostly ... -
The Selected Problems of the Study on the Quality of Mineral Fertilizer Sowing with Disc Spreaders
The aim of this study was the influence of working parameters of mineral fertilizer on quality of sowing. The application of fertilizers is conducted with a particular accuracy, mainly characterized by a variation coefficient ...