https://repository.utm.md/handle/5014/8303 2026-05-30T12:22:08Z 2026-05-30T12:22:08Z BATIRU, Grigorii COMAROVA, Galina https://repository.utm.md/handle/5014/36354 2026-05-29T11:58:17Z 2025-01-01T00:00:00Z

Use of biofortification principles in developing a maize germplasm collection BATIRU, Grigorii; COMAROVA, Galina This study explores the application of biofortification principles in developing a maize genetic collection with specific germplasm aimed at improving nutritional traits. The main objective was to evaluate and classify 174 maize genotypes based on their genetic potential for enhanced nutrient content using traditional and modern breeding tools. The research was conducted at the Laboratory of Applied Genetics and Biotechnology, Technical University of Moldova. A comprehensive methodological framework was employed, including classical selection, induced mutagenesis, polyploidization, haploidization, and molecular diagnostics. The results revealed a significant proportion of genotypes carrying key endosperm mutations such as o2, su1, wx1, and fl2, with 31% of the collection exhibiting double recessive combinations. Additionally, 9 lines and 15 hybrids were successfully converted into tetraploids. The study confirms the potential of these genotypes as valuable breeding material for biofortification. The genetic collection developed represents a strategic resource for enhancing the nutritional quality of maize and contributes to advancing sustainable agriculture and food security.

2025-01-01T00:00:00Z FRUNZE, Nina https://repository.utm.md/handle/5014/36352 2026-05-29T07:36:36Z 2024-01-01T00:00:00Z

Sănătatea solului - condiție importantă pentru dăinuirea sănătății omului FRUNZE, Nina In this work, soil health was assessed, using the relationship between phytopathogenic and suppressive micromycete species as integral indicators of the microbial response to long-term anthropogenic impact. The micromycete communities of the typical chernozem with different humus content of two pedoclimatic zones of the Republic of Moldova served as the object of study. The investigations were carried out by traditional microbiological methods of study. It has been established that in the soil of both ecological zones there is a large number of microscopic fungi, including phytopathogens and toxin formers in the structure of microbial communities. The comparative study of the share of suppressive and phytopathogenic micromycetes showed that their parallel coexistence is presented in different proportions with the obvious dominance of representatives of the genus Fusarium. The predominance of phytopathogenic and toxin-forming species in the structure of the microbial community indicates a state of deep stress in the soil microbiocenosis, an unhealthy development of the soil microflora during its long processing and a poor state of soil health as a whole.

2024-01-01T00:00:00Z GUŢU, Ana ŢIŢEI, Victor ABABII, Alexei GADIBADI, Mihail DOROFTEI, Veaceslav COZARI, Sergiu GUDIMA, Andrei ANDREOIU, Andreea Cristina TOD, Monica CÎRLIG, Natalia MAZĂRE, Veaceslav MAZĂRE, Romina https://repository.utm.md/handle/5014/36351 2026-05-29T07:37:04Z 2024-01-01T00:00:00Z

Biological features of Isatis tinctoria and the quality of ensiled biomass under the conditions of the Republic of Moldova GUŢU, Ana; ŢIŢEI, Victor; ABABII, Alexei; GADIBADI, Mihail; DOROFTEI, Veaceslav; COZARI, Sergiu; GUDIMA, Andrei; ANDREOIU, Andreea Cristina; TOD, Monica; CÎRLIG, Natalia; MAZĂRE, Veaceslav; MAZĂRE, Romina We studied some biological features and the quality of the silage prepared from Isatis tinctoria plants cultivated in the experimental plot of the “Alexandru Ciubotaru” National Botanical Garden (Institute), Chisinau, R. Moldova. In the second growing season the local ecotype of Isatis tinctoria was characterized by fast growth and development rate, reaching 118-147 cm in height, with a content of leaves and inflorescences of 57%. It has been determined that the dry matter of ensiled mass from the local ecotype of Isatis tinctoria was characterized by 196 g/kg CP, 160 g/kg ash, 314g/kg CF, 335 g/kg ADF, 521 g/kg NDF, 37g/kg ADL, 298 g/kg Cel, 201g/kg HC with nutritive value 628 g/kg DDM, 10.16 MJ/kg ME, 6.18 MJ/kg NEl and RFV=112, this fact indicates an optimal quality of the silages prepared for ruminants. The biochemical methane production potential of Isatis tinctoria silage substrates reached 361 L/kg VS. The ensiled biomass from the local ecotype of Isatis tinctoria can be used as alternative forage for ruminant animals, or as substrates in biogas generators for the production of renewable energy.

2024-01-01T00:00:00Z ДУБИЦ, Даниела МЕЛЬНИК, Анжела БУРДУЖАН, Виктор https://repository.utm.md/handle/5014/36341 2026-05-27T11:25:52Z 2024-01-01T00:00:00Z

Оценка продуктивных и адаптационных способностей озимой пшеницы сорта меляг в различных агроклиматических зонах Молдовы ДУБИЦ, Даниела; МЕЛЬНИК, Анжела; БУРДУЖАН, Виктор The article presents the results of a study of the winter soft wheat variety Meleag, zoned in Moldova, according to the parameters of adaptability and productivity in various agroclimatic zones of the country - southern and northern. The predecessor of winter wheat was grain peas. The productivity of the Meleag variety varied greatly depending on the conditions of the year and the agroclimatic zone. In the northern zone, grain yield varied from 5.51 t/ha (2021) to 8.58 t/ha (2018), being the zone average of 7.10 t/ha. Under the conditions of the southern zone, the productivity of the Meleag variety varied from 3.88 t/ha (2022) to 6.15 t/ha (2021), being an average for the zone of 5.40 t/ha. The variability of the productivity of the Meleag variety in the northern zone was average (v=11.8%), and in the southern zone low (v=4.4%). The Meleag variety showed higher stress resistance in the southern zone - 2.77, in the northern zone it was 3.07. The index of genetic flexibility of the variety in the southern zone was 5.27 and higher in the northern zone - 7.05, which indicates a high degree of correspondence between the geneticist and environmental factors.

2024-01-01T00:00:00Z