Archive Volume 7
Number 1
70 Anniversary of Prof. Ivan ATANASSOV
Plant Science
Organic Farming: Back to the Past or the Solution for a Sustainable Agriculture? Chance and Challenge for the Bulgarian Agriculture!
L. Carlier
Received January, 5, 2001; accepted January, 21, 2001
Breeding Wheat Lines for Host-Plant Resistance to Cereal Leaf Beetle by Using the Cross-Mutation Method
K. Kostov
Received November, 10, 2000; accepted January, 20, 2001
Genetic Control of the Reaction to Common Bacterial Blight Xanthomonas campestris pv. phaseoli (Smith) Dye in HR45 and NAB69 Dry Bean Lines Ph. vulgaris L.
D. Genchev and I. Kiryakov
Received November, 10, 2000; accepted January, 12, 2001
Possibilities for Establishing an Elite Mother Plant Stand of Promising Grapevine Cultivars and Clones in Bulgaria Through the Method of Tissue Culture
S. Pandeliev, I. Tzvetkov and V. Roytchev
Received December, 10, 2000; accepted January, 15, 2001
Effect of Cultar on the Photosynthetic Apparatus and Growth of Cherry Trees
V. Lichev, M. Berova and Z. Zlatev
Received January, 7, 2001; accepted January, 21, 2001
Reaction of Resistant and Sensitive Plants to Chlorsulfuron and Phenylurea Cytokinin 4-PU-30
G. Ts. Georgiev, E. T. Yakimova and L. K. Iliev
Received December, 5, 2000; accepted January, 15, 2001
Soil Science and Ecology
Mechanisms of Chelate Formation during Organo-mineral Melioration of Heavy Metals Polluted Acid Soils (I)
T. Raychev, A. Arsova, S. Popandova, G. Jozefaciuk, Z. Sokolowska and M. Hajnos
Received December, 10, 2000; accepted January, 5, 2001
Content of Macro and Microbiogenic Elements in the Grass Communities of the Field of Sofia Area
N. Georgiev
Received November, 10, 2000; accepted January, 15, 2000
Animal Science
Ecologically Friendly Approaches for Quality Evaluation of Herbaceous Forages in Bulgaria
I. Krachunov, T. Jeliazkov and A. Kirilov
Received January, 5, 2001; accepted January, 21, 2001
Somatic Cell Count, Milk Production and Properties of Goat Milk From Bulgarian Dairy White Breed
N. Petrova, P. Zunev and G. Uzunov
Received December, 15, 2000; accepted January, 15, 2001
Isoelectrophoretic Studies of Stage Specificity of Soluble Protein Expression of Apis mellifera L.
E. Ivanova, I. Dobrovolov and P. Tersieva
Received October, 5, 2000; accepted November, 21, 2000
Estimation of the Breeding Value of Stallions from Arabian Breed Regarding the Basic Body Measurements
I. Sabeva
Received March, 28, 2000; accepted December, 10, 2000
Effect of Balanced NPK and Micronutrient Fertilization of Mulberry Plantations on the Development and Productivity of Silkworm (Bombyx mori L.)
H. Greiss and N. Petkov
Received December, 5, 2000; accepted January, 15, 2001
On the Regularity of Inheritance of Productive Indexes in Reciprocal Hybrids with the Participation of Genetically Sex-Marked Races of Silkworm (Bombyx mori L.)
N. Petkov and Y. Nacheva
Received December, 5, 2000; accepted January, 15, 2001
Composition of Sheep Milk from Blackhead Pleven Breed
S. Boikovski and D. Georgieva
Received April, 5, 2000; accepted September, 21, 2000
Veterinary Medicine
Florfenicol and Thiamphenicol – Perspective Analogs of Chloramphenicol
T. Popova and N. Dimitrov
Received November, 10, 2000; accepted January, 15, 2001
Electrocardiographic Data in Some Heart Diseases of Dogs
V. Alexandrova and Y. Kostov
Received August, 5, 2000; accepted September, 21, 2000
Short Communications
Rates of Genetic Difference between Parent Breeds of Silkworm Moth (Bombvx mori L.) Hybrids for the Indexes of Intracocoon Unevenness and Intracocoon Concordance of the Silk Filament
Y. Nacheva. and N. Petkov
Received December, 8, 2000; accepted January, 15, 2001
in memoriam
Number 2
Plant Science
Seed Dormancy in Lettuce Seeds (Lactuca sativa L.) and its Relation with Plant Vegetation Periods
S. D. Stoyanova and St. N. Neykov
Received February, 15, 2001; accepted March, 1, 2001
Entomophthoroses on Some Aphids (Homoptera: Aphididae) Observed in Bulgaria
S. Draganova, G. Trenchev and R. Tomov
Received January, 21, 2001; accepted March, 1, 2001
Some Morphological Peculiarities of Dihaploid Lines of Pickling Cucumbers and Possibility for Their Inclusion in the Heterosis Breeding
V. Nikolova
Received January, 10, 2001; accepted March, 10, 2001
Toxic Action of Plant Extracts on Some Pests of Economic Importance
N. Velcheva, N. Atanassov, V. Velchev, R. Vulcheva, O. Karadjova and M. Velichkova
Received January, 15, 2001; accepted March, 10, 2001
Some Morphological and Bioecological Characteristics of Iva xanthifolia (Nutt.)
S. Milanova
Received February, 21, 2001; accepted March, 18, 2001
To the Problem of the Weeds in Seed Production of Lucerne (Medicago sativa L.)
Ts. Dimitrova
Received January, 21, 2001; accepted March, 1, 2001
Influence of Ripening on Tomato Fruit Quality
G. Pevicharova and T. Todorov
Received January, 5, 2001; accepted February, 10, 2001
Genetic and Phenotypic Variability in Some Broccoli (Brassica oleracea L. var italica Pl.) Hybrids
K. Mihov and G. Antonova
Received February, 10, 2001; accepted March, 21, 2001
The Influence of Rootstock on the Growth and Productivity of Three Apricot Cultivars
M. Dimitrova
Received February, 21, 2000; accepted January, 21, 2001
Soil Science and Ecology
Role of Chelating Processes in Formation of Buffer Systems under Organo-mineral Melioration of Cu and Zn Polluted Acid Soils (II)
T. Raychev, A. Arsova, S. Popandova, G. Jjozefaciuk, Z. Sokolowska and M. Hajnos
Received December, 10, 2000; accepted March, 1, 2001
Animal Science
Changes in Amino Acid Composition and Content of Plastid Pigments in Alfalfa Regenerant Lines Under the Influence of Drought
A. Ilieva and V. Radeva
Received January, 5, 2001; accepted February, 21, 2001
Yield and Composition of Milk from Bulgarian White Dairy Goat
N. Petrova, P. Zunev, G. Uzunov and G. Gerchev
Received January, 5, 2001; accepted March, 21, 2001
Correlations Between the Morphological and Functional Traits of the Udder in Buffalo Cows from Bulgarian Murrah
K. Dimov
Received January, 21, 2001; accepted March, 1, 2001
Selection Aspects of the Quality of Movements in Horses From Arabian Breed
I. Sabeva
Received February, 5, 2001; accepted March, 18, 2001
Veterinary Medicine
Bioacumulation of Natural Radionuclides and Changes in the Lipid Peroxidation in Carp (Cyprinus carpio) and Roach (Rutilus rutilus)
M. Dimitrova, E. Uzunova, V. Bogdanova, V. Velcheva and Tz. Bacarjieva
Received November, 21, 2000; accepted February, 10, 2001
Isolation of Methicillin – Resistant Staphylococci from Meat and Milk Foodstuff
K. Bojkova and I. Stefanov
Received December, 21, 2000; accepted March, 1, 2001
Short Communications
Possibilities for Water Status Evaluation of Young Cherry Trees (Prunus avium L.) on Clonal Rootstock GM9 by Means of Some Physiological Markers
D. Dochev, V. Djouvinov, M. Gospodinova, K. Kolev, Ph. Boxus, V. Kerin, Z. Zlatev, N. Vichev, I. Kirkova and G. Stoimenov
Received February, 27, 2001; accepted March, 20, 2001
Effect of Oxamyl Treatment of Cucumber Seeds on Seedling Growth and Development
I. Dimov and P. Dimitrov
Received January, 19, 2001; accepted March, 1, 2001
Number 3
Agricultural Economics
Urban Agriculture and Urban Planning in Bulgaria
P. Mishev and A. Yoveva
Received April, 20, 2001; accepted May, 10, 2001
The Food Market in Bulgaria
A. Simova and M. Koubratova
Received March, 10, 2001; accepted May, 18, 2001
Efficiency and Competitiveness of Bulgarian Cereal Farms
D. Kopeva and N. Noev
Received April, 7, 2001; accepted May, 22, 2001
Characteristics and Trends of the Bulgarian Foreign Trade with Food and Agricultural Products
A. Simova
Received March, 10, 2001; accepted April, 20, 2001
Some Problems of Technical Infrastructure in Rural Areas of Bulgaria and Poland during the Integration with European Union
D. Dinev, B. Khodanovich and R. Osypiuk
Received April, 21, 2001; accepted May, 10, 2001
Plant Sciences
Gliadin Analysis for Identification of 1BL/1RS Wheat-Rye Translocations and for Assessment of Protein Patterns in Aluminium Tolerant Genotypes
S. D. Stoyanova, D. B. Boyajieva and Ch. Ch. Phylipov
Received February, 10, 2001; accepted May, 11, 2001
Effect of Imidacloprid on the Tobacco Aphid (Myzus nicotianae Blackman) and the Peach Aphid (Myzus persicae Sulz.) – Vectors of Virus Diseases
O. Karadjova, D. Hristova and G. Adam
Received January, 21, 2001; accepted March, 1, 2001
Attack on Sunflower by Charcoal Rot (Sclerotium bataticola T.) under the Influence of Climate and Mineral Fertilization
V. Alexandrov and V. Koteva
Received March, 12, 2001; accepted May, 16, 2001
Virulence Survey of Puccinia recondita f. sp. tritici in Bulgaria during the Period 1996-1999
M. Todorova and V. Kiryakova
Received April, 19, 2001; accepted May, 22, 2001
Susceptibility of the South American Leafminer Liriomyza huidobrensis (Blanch) to Some Insecticides
O. Karadjova
Received March, 15, 2001; accepted May, 10, 2001
Carbon Dioxide under High Pressure as an Alternative in Ephestia kuehniella (Zeller) and Plodia interpunctella (Hübner) (Lepidoptera, Pyralidae) Control
L. Markova
Received April, 5, 2001; accepted May, 28, 2001
Morphological Characteristics and Yield Structure of Some Brussels Sprouts Hybrids (Brassica oleracea var. gemmifera L.)
K. Mihov and G. Antonova
Received January, 21, 2001; accepted March, 1, 2001
Biochemical and Organoleptic Evaluation of Bulgarian and Foreign (F1) Tomato Varieties for Fresh Consumption
G. Pevicharova and T. Todorov
Received April, 13, 2001; accepted May, 22, 2001
Effect of the Thinning of Ovaries on the Stem on the Growth and Productivity of Greenhouse Cucumbers
P. Dimitrov and M. Mihov
Received March, 10, 2001; accepted May, 22, 2001
Comparatively Investigation of Some Temperate Grasses and Legumes for Hay Production
V. Lingorski
Received March, 19, 2001; accepted May, 10, 2001
Characterization of Pseudomonas syringae pv. phaseolicola Races in North-Eastern Bulgaria
I. Kiryakov
Received March, 15, 2001; accepted May, 10, 2001
Soil Science and Ecology
Ecomonitoring Study of the Condition of Soil Cenoses from Heavy Metals Contaminated Grounds
I. Velcheva, K. Sapundjieva and P. Kostadinova
Received December, 28, 2000; accepted May, 10, 2001
Animal Science
Phenotypic and Genotypic Parameters of the Basic Estimations from the Complex Assessment in Horses from Arabian Breed
I. Sabeva
Received March, 19, 2001; accepted May, 22, 2001
Composition of Buffalo Milk. Sources of Specific Effects on the Separate Components
Tz. Peeva
Received January, 21, 2001; accepted March, 1, 2001
Influence of the Factor Number of Lactation and the Lineal Belonging on the Buffalo Milk Composition
M. Tzankova
Received March, 30, 2001; accepted May, 22, 2001
Food Science
Technology for Production of Low Viscosity Drinking Yogurt
S. Minkova
Received March, 21, 2001; accepted May, 11, 2001
Short Communications
Mathematical Forecast of Breeding Effect Based on Cocoon Shell Weight Index of Silkworm (Bombyx mori L.)
Y. Nacheva, N. Ptekov and P. Tzenov
Received November, 15, 2000; accepted May, 10, 2001
Variability of Isoelectrophoretic Spectra of Total Water-Soluble Proteins Depending on Honeybee Susceptibility to Bacillus larvae
E. Ivanova, I. Dobrovolov and P. Tersieva
Received December, 7, 2000; accepted March, 10, 2001
Number 4-5
Agricultural Economics
Agro-food Competitiveness in Slovenia: The Policy Analysis Matrix Approach
Š. Boinec
Received January, 21, 2001; accepted March, 1, 2001
Major International Trade Regulations of Bulgarian Agrarian Sector
A. Simova
Received January, 21, 2001; accepted March, 1, 2001
Plant Sciences
Influence of Direct Current upon Bud Dormancy in Grape Vine (Vitis vinifera L.)
P. Botyanski, V. Roychev and D. Braykov
Received July, 19, 2001; accepted September, 1, 2001
Identification of Potential Bud Fertility Parameters of Grapevine Cultivars Bolgar and Mavrud in the Autumn-Winter Period
V. Roychev and D. Braykov
Received July, 21, 2001; accepted September, 21, 2001
Decision Support System for Plant Protection in Winter Wheat
E. Uzunova and H. Krasteva
Received June, 5, 2001; accepted September, 15, 2001
Possibilities for Improvement of Onion Sets Planting Machine MSL-1.6 for Planting of Garlic Cloves
M. Mikhov and S. Vulchev
Received July, 16, 2001; accepted September, 1, 2001
Conformity of Electrophoretic Families of Phaseolus vulgaris L. Collection Samples in Bulgaria with Morphological and Economic Indexes.
III. Productivity
N. Tomlekova, L. Krasteva, I. Poryazov and P. Ivanov
Received January, 21, 2001; accepted March, 1, 2001
Preliminary Results of the Study of Between-Species Hybrid 70/3 (P. spinosa x P. cerasifera) with Characteristic Peculiarities of P. domestica Species
I. Minev
Received January, 21, 2001; accepted March, 1, 2001
Effect of Gamma Irradiation for Induction of Gynogenesis in Cucumber (Cucumis sativus L.)
V. Nikolova, V. Rodeva, M. Alexandrova and V. Stoeva
Received January, 21, 2001; accepted March, 1, 2001
Yields Structure of Sown Perennial Grasses in Foothill Region of Central Northern Bulgaria
V. Lingorski
Received March, 21, 2001; accepted September, 1, 2001
Changes in Quality of White Cabbage (Brassica oleracea var. capitata L.) under Storage
K. Mihov
Received May, 29, 2001; accepted August, 1, 2001
Soil Science, Agrochemistry and Ecology
Relationship between Viral Infection and Heavy Metals in Tomatoes (Lycopersicon esculentum)
E. Miteva, D. Hristova and S. Maneva
Received May, 28, 2001; accepted July, 16, 2001
Effect of Sunflower Fertilization with Increasing Nitrogen Rates at Different Seeding Terms
M. Stamboliev and M. Angelova
Received April, 6, 2001; accepted September, 21, 2001
Zinc Accumulation Capacity of the Meadow Vegetation in Different Mountain Areas (South and Central Bulgaria)
V. Kafedjiev, Tz. Odjakova, L. Angelow, P. Todorova and I. Petrova
Received April, 9, 2001; accepted September, 21, 2001
Food Science
Equations for the Calculation of Viscosity of Fruit Juice and Syrup
K. Kolarov, K. Dinkov, N. Menkov and D. Zhelyazkov
Received July, 21, 2001; accepted September, 21, 2001
Technology of Manufacture of High Viscosity Yogurt
S. Minkova
Received July, 21, 2001; accepted September, 21, 2001
The Effective Factors on Preparation of Low Degree Wheat Starch Phosphate and Its Characters
Zhongdong Liu
Received March, 28, 2001; accepted September, 1, 2001
Animal Science
Study on the Preservation Terms of Nondiapausing Silkworm (Bombyx mori L.) Eggs at Low Temperature
P. Tzenov, Y. Nacheva and Y. Lazarov
Received January, 21, 2001; accepted March, 1, 2001
Effect of Temperature on Silkworm Moth (Bombyx mori L.) Development and Productivity
H. Greiss and N. Petkov
Received January, 2, 2001; accepted March, 1, 2001
Testing of the Gene Bank Silkworm Moth Races for Parthenogenetic Development Predisposition
Y. B. Vassileva and P. I. Tzenov
Received January, 21, 2001; accepted March, 1,2001
Raising Larvae of the Tench (Tinca tinca L.)
R. Fleig, T. Gottschalk and T. Hubenova
Received July, 21, 2001; accepted September, 1, 2001
Rearing of Pike (Esox lucius L.) up to a Fingerling Size
T. Hubenova, A. Zaikov and J. Karanikolov
Received August, 29, 2001; accepted September, 15, 2001
Karyotype Study on High Incidence of Neonatal Mortality in Cattle
I. Dimitrova
Received July, 10, 2001; accepted September, 15, 2001
Research on the Dynamics of the Alleles from Amylase Locus in the Cattle Populations, Reared in Bulgaria
A. Teneva
Received June, 7, 2001; accepted September, 1, 2001
Transferrin Allelic and Phenotypic Dynamics of Bulgarian Brown Cattle Herds
A. Teneva, N. Chemshirova and I. Dimitrova
Received January, 21, 2001; accepted March, 1, 2001
Heritability and Repeatability of the Traits in Sheep from Blackhead Pleven Breed Depending on the Type and Mating
S. Boikovski, G. Stefanova and D. Georgieva
Received March, 30, 2001; accepted May, 11, 2001
The Effects of Forced Molt Treatment on Body Weight, Oviduct and Some Blood Biochemical Contituents in White Hysex Hens
D. Chotinsky
Received January, 21, 2001; accepted March, 1, 2001
Veterinary Medicine
Biochemical Studies of Vitamin E and Selenium Deficiency in Growing Piglets
H. Hristev, L. Belchev and A. Angelov
Received August, 29, 2001; accepted September, 15, 2001
***
Report on the International Seminar on Molecular Markers and Plant Variety Testing
K. Roussanov
Number 6
Development of Agricultural Education in Bulgaria
I. Kouzmanova and D. Dochev
Agricultural Economics
Need for an Agri-Environmental Policy in Bulgaria
M. K. Hristova
Received October, 19, 2001; accepted November, 15, 2001
Plant Sciences
Wheat Breeding as a Basis of Grain Production in Bulgaria
I. Panayotov and T. Rachinski
Received November, 1, 2001; accepted December, 1, 2001
Conservation and Maintenance of Plant Varieties – an Important Step of the Co-ordinated Program for Plant Genetic Resources and UPOV Integration
S. D. Stoyanova
Received November, 1, 2001; accepted December, 1, 2001
Heterosis Effect in Hybrid Combinations of Dihaploid Sugar Beet Lines
G. Kikindonov and Tz. Kikindonov
Received August, 17, 2001; accepted October, 10, 2001
Epidemiology of Tomato Spotted Wilt Tospovirus in Bulgarian Tobacco Field
O. Karadjova, D. Hristova and G. Adam
Received January, 21, 2001; accepted March, 1, 2001
Entomopathogenic Fungi on Aphis Pomi De Geer (Homoptera: Aphididae) and Tetranychus Urticae K. (Acarina: Tetranychoidea)
S. Draganova and S. Simova
Received November, 21, 2001; accepted December, 1, 2001
Possibilities for Chemical Weed Control in the Cotton
M. Dimitrova, T. Georgieva and E. Laleva
Received June, 14, 2001; accepted November, 15, 2001
Inheritance and Correlations of Some Quantitative Fruit Characteristics in Relation of Improving the Efficiency of Breeding Selection of Pepper
N. Panayotov and D. Dimova
Received October, 19, 2001; accepted November, 15, 2001
Detection of Pear Decline Phytoplasma by Polymerase Chain Reaction in Bulgaria
M. Topchiiska and D. Sakalieva
Received September, 10, 2001; accepted November, 15, 2001
Faba bean (Vicia faba L.) Response to Seeding Rate, Seeding Date, Rate and Method of Phosphorus Application in a Mediterranean Type Environments
M. A. Turk and A. M. Tawaha
Received January, 21, 2001; accepted March, 1, 2001
Influence of the NPK – Fertilization Terms of Grass-Legume Mixture in Upland Region
V. Lingorski
Received September, 10, 2001; accepted November, 15, 2001
Animal Science
Estimation of Tryptophan Requirements for High Growth Rate in Pigs at 15 kg Live Weight:
I. Preliminary Investigations at Six Different Levels of Tryptophan Allowance Within 9 Days of Test
M. L. Simeonova
Received September, 5, 2001; accepted November, 10, 2001
Investigation of Some Reproductive Qualities in Three and Four-breed Crosses in Pigs
A. Apostolov, S. Slanev, A. Stoikov and E. Gineva
Received October, 19, 2001; accepted November, 15, 2001
Effect of Different Dietary Protein Level on Body Weight, Feed Consumption and Biological Ability of Semen on Turkey Breeder Males
S. Dimitrov and T. Angelova
Received September, 7, 2001; accepted November, 12, 2001
Effect of Acetylsalicylic Acid on Adrenal Response to Immobilization and Adrenocorticotropin Administration in Goats
D. Gudev, S. Popova-Ralcheva, S. Alexandrov and P. Moneva
Received September, 10, 2001; accepted November, 5, 2001
Food Science
Regression Models of the Density of Fruit Juices and Syrups
K. Kolarov, E. Dimitrova and K. Dinkov
Received January, 21, 2001; accepted March, 1, 2001
Short communications
Level of Some Technogene Radionucleides in the Milk of Different Species Productive Animals
S. Boikovski and M. Tzankova
Received August, 21, 2001; accepted October, 10, 2001