Browsing by Author "Malii, Aliona"

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CRITICAL SOIL MOISTURE IN RAINFED SOYBEAN FIELD
(CEP USM, 2023) Harciuc, Oleg; Malii, Aliona
The content of soil moisture in different soil horizons of soybean fields in the 0-150 cm layer was studied in years with different meteorological conditions. The current forecast of the degree of aridity of the growing season is carried out according to soil moisture data in the soil layer 0-150 cm. In the sawing the critical level of soil moisture in rainfed soybean fields was 300 mm. In the pod filling stage the critical level of soil moisture in rainfed soybean fields was 200 mm.
Studiul influenței razelor X asupra genotipurilor de soia
(CEP USM, 2024) Malii, Aliona
The analysis of the impact of X-rays on soybean plants revealed a negative correlation between radiation dose and survival rate. The optimal mutation induction doses are up to 200 Gy for the Laduța variety and Z3M10100 line, while for the Clavera variety, this dose is limited to 150 Gy. Each genotype demonstrated variability in response to X-rays, suggesting different levels of tolerance. The height of the plants significantly decreased with increasing radiation doses, highlighting adverse effects on development. Controls, with no exposure, showed 100% survival, thus emphasizing the need for caution in using radiation in breeding research.
WATER USE BY SOYBEAN VARIETIES OF DIFFERENT MATURITY GROUPS
(CEP USM, 2023) Malii, Aliona; Harciuc, Oleg
The seasonal change in soil moisture reserves in dependence on the genetic form of soybeans was studied. It has been established that the deep layers of the soil (40-150 cm) more consistently reflect the influence of the plant component than the surface ones. In 2021, water reserves decreased in the 0-150 cm layer: for the Pentata variety - by 103 mm, and for the Onika variety- by 53 mm. Thus, Onika variety (MG I) retained 50 mm more water in the field for the next season compared to variety Pentata (MG III).
Water use efficiency in biology, agriculture and sustainable development
(CEP USM, 2024-10-07) Harciuc, Oleg; Malii, Aliona
In the Republic of Moldova 2017-2023 water use efficiency in rainfed soybean fields was in the range of 0,3-0,8 g grain/kg water. Under field conditions, for the Ladutsa soybean variety, a WUE of 0,75 g of grain/kg of water was obtained with seasonal precipitation of 94 mm, which is several times less than 317 mm, considered optimal for achieving the average agricultural WUE of 0,57.