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Morphobiological features of diaphragm formation in in vitro and ex vitro grape plants of interspecific origin
Submitted by Гость (not verified) on Tue, 07/09/2024 - 16:45Clonal micropropagation of grape varieties of interspecific origin Moscow white (Vitis amurensis Rupr. x Vitis vinifera L.) showed that on the 40 th day of the animation stage, a mono-podial type of branching is typical for micro-plants, and there is no diaphragm in all nodes of micro-shoots. On the 120 th day of growing in containers, the researchers revealed that the nodes of the plant shoots, from the 1 st to the 6th, have a monopodial branching type. Parenchymal cells which form an incomplete diaphragm are present in the seventh node.
Structure features of the stomatal apparatus of representatives of the genus Thymus L.
Submitted by Гость (not verified) on Tue, 07/09/2024 - 16:45Thymus vulgaris L. and Thymus serpyllum L. are sought-after medicinal plants in many countries of the world for their essential oils, flavonoids and tannins. The species of this genus are extremely polymorphic, both in their morphological and anatomical structure and in their biochemical composition. Stomata play an important role in growth and yield formation. The study of the stomatal apparatus and its features is a relevant research topic for agricultural crops.Eight specimens of Th. vulgaris and three specimens of Th.
SUSTAINABILITY OF WHITE CLOVER (TRIFOLIUM REPENS L.) IN SOWN SWARDS DEPENDING ON THEIR COMPOSITION, INTENSITY MOWING AND NITROGEN FERTILIZERS
Submitted by Гость (not verified) on Tue, 07/09/2024 - 16:45The authors carried out studies at the experimental field station of Russian State Agrarian University - Moscow Timiryazev Agricultural Academy in 2008-2020. The study aimed to determine the resistance of white clover in mixtures with various types of grasses with two- and three-cut clipping treatments. In the experiment with four to five-component mixtures, the proportion of white clover reached 36-53% in the botanical composition of swards with the content of perennial ryegrass in the fourth year of life. It did not exceed 22-23% in the mixtures with cock’s foot.
Evaluation of breeding qualities of hog producers using the BLUP method
Submitted by Гость (not verified) on Tue, 07/09/2024 - 16:45The paper presents the approbation results of the program “Assessment of the breeding value of hogs using the BLUP method” developed by All-Russian Research Institute of Pedigree Breeding (VNIIplem) in cooperation with LLC “Selikom” (Ryazan). The authors show some factors affecting the breeding value of the animals and give the basic provisions of their genetic evaluation with the method of best linear undistorted prediction (BLUP).