A comparative experiment was carried out with five Bulgarian and five foreign durum wheat cultivars. The aim of the experiment was to determine the chemical content and grain technological quality of some Bulgarian and foreign durum wheat cultivars grown under the agriecological conditions of Southern Bulgaria. The Vazhod cultivar proved to give the highest durum wheat grain yield, followed by Beloslava cultivar. Out of the foreign durum wheat cultivars the Durumko was notable for its higher productivity. The crude protein content in the grain was highest in Zagorka, Yavor and Yukon. The highest yield of gluten was reported in Beloslava, Vazhod and Zagorka.

The research was conducted during 2007-2009 on the experimental field of the Cotton and Durum Wheat Research Institute, Chirpan, Bulgaria, on pellic vertisol soil type. Under investigation was Bulgarian durum wheat cultivar Vuzhod, which belongs to var. valenciae. Factor A included no treated check and 4 stimulators-Tritimil-30 ml/da, Ramil-30 ml/da, Trisalvit-30 ml/da, Salvit-50 ml/da. Factor B included weeded no treated check and 3 herbicides-Puma super-100 ml/da, Grasp-120 ml/da, Topik-45 ml/da. All of stimulators, herbicides and their tank-mixtures were treated in tillering stage of the durum wheat. The weak adhesion of Grasp required its application with adjuvant Atplus-120 ml/da. All of variants increase germinative energy with the exception of mixtures Tritimil + Topik, Ramil + Puma super, Trisalvit + Grasp, Trisalvit + Topik, Salvit + Puma super and Salvit + Grasp. Tank mixtures Tritimil + Topik and Ramil + Puma super are not influence on seed germination only. Coleoptile length is increased by mixtures of Tritimil with Puma super and Grasp. Roots length is increased by mixtures of Ramil with Grasp and Topik. Tank-mix combination Trisalvit + Topik decreases roots and coleoptiles length. Investigated variants do not influence on waste grain quantity. The most increase of grain yield is obtained at mixtures Tritimil + Puma super, Tritimil + Grasp, Ramil + Grasp, Ramil + Topik and Trisalvit + Grasp. There is antagonism by combined use of Tritimil with Topik, of Ramil with Puma super, of Trisalvit with Puma super and Grasp and of Salvit with the three antigrass herbicides.

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Abstract. The aim of the study was to determine the goat milk quality from animals grown in a mountainous area in Bulgaria based on physicochemical and microbiological parameters. The study was carried out in a farm that breeds local goats and goats of the Bulgarian White Dairy Goat (BWD). Individual milk samples were taken on a monthly basis from morning milking. A total of 100 individual and 10 bulk milk samples were examined for fat, solids non fat, protein and density. A total of 62 samples were collected at a time to determine the microbiological characteristics of milk. For the period May-September 2017, the percentage of fat in the milk of local goats averaged 3.61% and of goats from BWD goat – 3.54%. The solids non fat were 8.27% and 8.19%, total protein – 3.13% and 3.10%, and the dry matter – 11.89% and 11.74%, respectively. For the period May-August 2017 the individual constituents of milk changed to varying degrees with the most variable being milk fat (decrease of 0.97% in local goats’ milk and 1.09% in milk from BWD goat) followed by solids non fat (0.56% and 0.7%, respectively). The slightest change was in protein – 0.21% and 0.26%, respectively. Coagulase-negative staphylococci were the predominant bacterial species in the goats’ milk samples.

The purpose of our research was studying the indicators of grain quality, productivity and analysis of anatomical stem structure during the full maturity of two cultivars of winter common wheat. Novelty of work consists in carrying out such a research using a local standard cultivar Almaly and a new cultivar SWW 2/127 grown using the drip irrigation technology. Researches were carried out in field and laboratory conditions using methods of field experiment, drip irrigation, microscopic section and biometric analysis. Stem structure of the 3rd internode, epidermis thickness, length and width of large conducting bundles, xylem length and width, thickness of parenchyma cell and culm thickness were analyzed. ), glassiness (85%), protein quantity (15.6%) and gluten quantity (34.4%). Both cultivars formed grain nature, glassiness, starch and protein quantity, gluten quantity at the level of State standards for strong and valuable wheat; gluten quality corresponded to the 2nd group. Indicators of the ear structure of Almaly cultivar were higher than indicators of SWW 2/127 cultivar. Productivity of Almaly cultivar was 91.8 centners per a hectare, seed sowing norm was 2 million grains per a hectare; productivity of SWW 2/127 cultivar at the same norm of seed sowing was 77.4 centners per a hectare.