https://repository.utm.md/handle/5014/8302 2026-06-04T20:18:15Z https://repository.utm.md/handle/5014/36397 The cell wall components and energy value of Triticum spelta l. straw ABABII, Alexei; DARADUDA, Nicolae; GORE, Andrei; DOROFTEI, Veaceslav; ŢIŢEI, Victor; COZARI, Sergiu; ANDREOIU, Andreea Cristina; GADIBADI, Mihail; BANARI, Alexandru; GUDÎMA, Andrei; NAZAR, Boris The genus Triticum is the most important among the cultivated plants essential to human nutrition and for its spreading throughout the world. It is comprising biological species at the diploid, tetraploid, and hexaploid levels. Spelt wheat Triticum spelta is currently a topic of great interest for researchers. The main objective of this research was to evaluate cell wall components and the energy potential of spelt wheat straw collected in an experimental field of the Institute of Genetics, Physiology and Plant Protection of Moldova State University The cell wall components have been determined by NIRS technique PERTEN DA 7200 of the Research and Development Institute for Grassland Braşov, Romania and energy indices of biomass in the Laboratory of Biosolid Fuel of Techical University of Moldova.It has been determined that collected spelt wheat straw contained 932 g/kg dry matter. 2024-01-01T00:00:00Z https://repository.utm.md/handle/5014/36395 The evaluation of the quality indices of fruit trees pruning residues for briquettes production DARADUDA, Nicolae; ABABII, Alexei; DOROFTEI, Veaceslav; ŢIŢEI, Victor; COZARI, Sergiu; GADIBADI, Mihail; BANARI, Alexandru; GUDÎMA, Andrei; NAZAR, Boris Bioenergy is the most significant renewable energy source and more than two thirds of biomass utilized for energy conversion consists of forestry and agricultural residues, such as fruit tree pruning. The main goal of our research was to evaluate the quality indices of biomass- fruit trees pruning residues for briquettes production. We found that collected fruit trees pruning residues contained 2.08 % ash. The elemental composition of dry biomass was 42.3% carbon, 6.2% hydrogen, 0.5% nitrogen, 0.03% sulphur. The specific density of the briquettes made from milled fruit trees pruning residues reached 1050 kg/m3. The heating value of biomass 20.0 MJ/kg gross calorific value, 18.6 MJ/kg net calorific value and 16.5MJ/kg net calorific value of briquettes at 10% moisture content. The biomass from pruning fruit tree can be used as substrate for the production briquettes as renewable energy. Biomass from pruning, being a residual material, does not create any additional demand for land and can deliver substantial greenhouse gas emission savings compared to fossil fuels. 2024-01-01T00:00:00Z https://repository.utm.md/handle/5014/36394 The quality indices of biomass from Miscanthus giganteus "Titan" GUDÎMA, Andrei; DARADUDA, Nicolae; ABABII, Alexei; DOROFTEI, Veaceslav; ŢIŢEI, Victor; COZARI, Sergiu; GADIBADI, Mihail; BANARI, Alexandru; NAZAR, Boris The development of plant biomass production and their use as an energy source is currently encouraged at global but also regional level. The local cultivar 'Titan' of Miscanthus giganteus created at “Alexandru Ciubotaru” National Botanical Garden (Institute) of Moldova State University served as subject of the research. It has been found that the collected early spring Miscanthus giganteus biomass was characterized by 13.4 % moisture content and 2.18 % ash content. The elemental composition of Miscanthus giganteus dry biomass was 50.0% carbon, 6.86% hydrogen, 0.47% nitrogen, 0.03% sulphur. The specific density of the briquettes made Miscanthus giganteus dry biomass reached 740 kg/m3 . The gross calorific value of biomass was 19.6 MJ/kg and net calorific value of briquettes at 10% moisture content -16.2MJ/kg. The biomass from local cultivar 'Adela' 'Titan ' of Miscanthus giganteus can be used for preparing solid fuel - briquettes for a renewable energy production. 2024-01-01T00:00:00Z https://repository.utm.md/handle/5014/36393 Research on fungicide new in the fight against diseases at autumn barley in the conditions of the Republic of Moldova BIVOL, Alexei; BĂDĂRĂU, Sergiu; SHARGU, Lilia; BIVOL, Elisaveta; IURCU-STRĂISTARU, Elena Autumn barley crop is annually subject to pathological invasions causing severe plant diseases during the growing season.The climatic conditions in the autumn of 2023 and in the spring-summer 2024 vegetation period were unfavorable both for the growth and development of autumn cereals, and for the achievement of primary infection and the subsequent evolution of brown rust, powdery mildew, septoriosis, helminthosporiosis, fusariosis and other infectious diseases estimated inin plantations. 2024-01-01T00:00:00Z