Silvia SECRIERU1, Antonina DERENDOVSKAIA 2, Natalia MASHCHENKO 3 1,2The Technical University of Moldova, Chisinau, Republic of Moldova, 3The Institute of Genetics, Physiology and Plant Protection of the Moldovan
The article presents the results of studies on the effect of steroid glycosides isolated from the aerial part of plants of the Scrophulariaceae family on the parameters of growth, photosynthetic activity and productivity of spring barley plants, when they grow in the field, in comparison with the well-known growth regulator Ekostim. It has been established that under the action of steroid glycosides there is an increase in raw and absolutely dry biomass, an increase in the concentration of chlorophylls and carotenoids in plant organs, which leads to an increase in the total chlorophyll content in spring barley plants of the Iney variety. An increase in the photosynthetic activity of plants under the action of steroidal glycosides leads to an increase in the productivity elements (ear mass, grain mass per ear, number of grains in them) and the yield of the variety. Steroid glycosides isolated from the aerial parts of plants of the family. Scrophulariaceae have a regulatory effect on spring barley plants of the Iney variety. Under the conditions of a small-plot field experiment, they stimulate the growth and development of plants. They enhance the photosynthetic activity of plants, the accumulation of plastid pigments in the assimilation organs of plants. They increase the accumulation of raw and absolutely dry biomass in plant organs and, ultimately, the potential productivity of plants. Under unfavorable conditions (during the period of drought), they show an anti-stress effect of action, similar to the preparation Ecostim.
Growth regulator, Ecostim preparation, Spring barley varieties, Plastid pigments, Productivity
Presentation: poster