The study of some grain genotypes (Vicia faba l.) from the world and local assortment, in the conditions of the mountain area from Obcinile Bucovinei

The researches were made in the period 2005-2007 at the Agricultural Research Development Station Suceava, the Agricultural Research Center Pojorata, located in the mountain area from Obcinile Bucovinei, on the first terrace of Moldova river, on an altitude of 700 m, on a lithic alluvial soil with pH (water) of 5.3, mobile Phosphorus of 65.6 ppm, mobile Potassium of 71.4 ppm, humus content of 3.8% and nitrogen coefficient of 4.79. In the paper are presented the results obtained regarding the behavior of 60 grain genotypes (Vicia faba L.) from the world and local collection under the aspect of precocity, of some morpho-productive elements, of the resistance to diseases and of the production capacity. The studies made refer to the plant’s height, to the number of fertile siblings, to the height of the insertion of the first pod, the number of pods on the plant, the number of grains in the pod, the number of grains on the plant, the weight of the grains on the plant, the weight of 1000 grains (virosis, Uromices fabae, Botrytis fabae, Ascochyta fabae) and the seed production. The grain genotypes from the verified range, which succeeded to mark out by their great capacity of production, by high resistance to the disease attack or other morpho-physiological features, represent a valuable source of germplasm for the amendment works that can be used as genitors in the hybridization process for creating new grain genotypes

The influence of the moderate fertilization on the production of timothy grass (Phleum pretense) in pure culture and in mixture with the clover (Trifolium pratense)

The researches were made in the period 2005-2007 at the Agricultural Researches Center Pojorata, at an altitude of 700 m, on a lithic alluvial soil situated on the first terrace of Moldova river with a pH 8 water) 5.1, P (Al) 75 ppm, K (al) ppm and a humus content of 2.9.%. It was followed in a bifactorial experience of the 2 x 3 type in four repetitions the factors: A- the species or the mixture with two graduations: of the Phleum pratense 80% + Trifolium pratense 20%, a2- Phleum pratense 100%. B-the fertilization with three graduations: b1-0 N 0 P2O5; b2-50 N 50 P2O5; b3- 100N 50 P2O5; The harvesting was made as it follows: the Phosphorus was applied in autumn and the nitrogen in the spring before the starting of the vegetation. The results of the researches underlined the superiority of the Phleum pratense species in the pure culture in comparison with the mixture between Phleum pratense 80% and Trifolium pratense 20% from the production point of view and of the floristic compositio

Strategies of using organic fertilizers on the permanent grasslands from North-eastern Romania

From the viewpoint of the total natural grassland area, Romania is found on the fifth place in Europe, after France, Great Britain, Spain and Germany. In the present strategy of using organic fertilizers on permanent grasslands, there are economic and ecological concerns, which main aims are resource saving and environment protection, and less important ones, yield increases. The experiment has investigated the influence of organic fertilizers, applied each year or every 2-3 years, at rates of 10-40 Mg ha-1, in a Festuca valesiaca grassland, situated at the height of 107 m, at Ezăreni-Iasi County, and at rates of 10- 30 Mg ha-1, in an Agrostis capillaris+Festuca rubra grassland, situated at the height of 707 m at Pojorîta-Suceava County, on yield and flower composition

Some researches concerning the resistance mechanism determination of potato to wart produced by Synchytrium endobioticum through biochemical analyses

The paper presents results concerning the resistance mechanism determination of potato to wart, caused by Synchytrium endobioticum, through biochemical analysis, in 10 potato resistant and susceptible genotypes to above pathogen, relating to: dry matter and moisture contents, ash, total nitrogen, total crude protein and starch contents , titratable acidity, catalase and polifenoloxidaze activities, ascorbic acid and total free amino acids contents. Following the analysis carried out on resistant and susceptible potato genotypes to the pathogen was found that indicators refering to dry matter and moisture content, ash, ascorbic acid, titratable acidity and starch contents no guarantee expression of the resistance degree or susceptibility level to pathogens. It is interesting the analyzes of total nitrogen and crude protein contents from tubers, catalase and polifenoloxidaze activities and total free amino acids contents. Thus we can say, after the first analyzes conducted in this direction, the potato genotypes resistant to pathogens, contain over 0.9g nitrogen/100g tissue tuber crude protein over 5.6% total free amino acids content, over 0.40% from d.s., catalase units less than 110 and below 1.70 micromoles of ascorbic acid oxidized by enzyme in 1 gram of tuber tissue for one minute. It is necessary to continue this type of research on a much larger number of resistant and sensitive potato genotypes and take into account other analyzes to those mentioned in this paper, regarding to quality of the protein content, the essential amino acids content, alkaloids, amides, the study of albuminoidal substances compozition etc., which would prevent the cellular system development of the fungus in potato tubers

Sowing density and fertilization influence on faba bean seed production (Vicia faba L. var. major. harz) under ecological condition from Bucovina Obcines

In the researches conducted in the period 2012-2014, it noticed the influence of sowing density and fertilization influence on grain production of faba bean seed (Vicia faba L. var. major. Harz) under the mountain area conditions of the county Suceava. The researches were conducted at the Agricultural Research Center of Pojorâta (which it focused foothill and mountain areas of Bucovina Obcine), on lytic alluvial soil pH (water) 5.1, 2.9 humus content, phosphorus (PAL) 45 ppm potassium (KAL) 80.5 ppm, the degree of base saturation (V) 57.1 and nitrogen index (IN) 2.18. It followed in a bifactorial experience of type 2 x 7, the influence of sowing density with two graduations (20 grains germinable/m2 and 40 bg/m2 ) and fertilization with seven graduations (unfertilized, 40N, 60P2O5, 40N60P2O5, 40N60P2O560K2O, 40t/ha manure 40t/ha manure + 40P2O5). Analyzing the average for the three research years it showed that at the faba bean from major variety, the most effective sowing density is 40 g.s. /m2 , when it could achieve, productions up to 4000 kg/ha, that combined administration of fertilizers with nitrogen and phosphorus achieved yield increases distinct significantly and through applying of manure at a dose of 40 t/ha and at the density of 40 g.s. / m2 it could be achieved yield increases, very substantial

Some researches concerning the resistance mechanism determination of potato to wart produced by Synchytrium endobioticum through biochemical analyses

The paper presents results concerning the resistance mechanism determination of potato to wart, caused by Synchytrium endobioticum, through biochemical analysis, in 10 potato resistant and susceptible genotypes to above pathogen, relating to: dry matter and moisture contents, ash, total nitrogen, total crude protein and starch contents , titratable acidity, catalase and polifenoloxidaze activities, ascorbic acid and total free amino acids contents. Following the analysis carried out on resistant and susceptible potato genotypes to the pathogen was found that indicators refering to dry matter and moisture content, ash, ascorbic acid, titratable acidity and starch contents no guarantee expression of the resistance degree or susceptibility level to pathogens. It is interesting the analyzes of total nitrogen and crude protein contents from tubers, catalase and polifenoloxidaze activities and total free amino acids contents. Thus we can say, after the first analyzes conducted in this direction, the potato genotypes resistant to pathogens, contain over 0.9g nitrogen/100g tissue tuber crude protein over 5.6% total free amino acids content, over 0.40% from d.s., catalase units less than 110 and below 1.70 micromoles of ascorbic acid oxidized by enzyme in 1 gram of tuber tissue for one minute. It is necessary to continue this type of research on a much larger number of resistant and sensitive potato genotypes and take into account other analyzes to those mentioned in this paper, regarding to quality of the protein content, the essential amino acids content, alkaloids, amides, the study of albuminoidal substances compozition etc., which would prevent the cellular system development of the fungus in potato tubers