The purpose of the research was to reveal structur- ally functional reorganizations of plants of soy and pho- tosynthetic device in the course of modern selection in Primorsky Region. In the Laboratory of Soybean Selec- tion at FSBSI "Primorsky Scientific Research Institute of Agriculture" new high yielding variety Sphere was de- veloped. Comparative researches of productivity and mesostructure of photosynthetic device of a new sea- side variety of soy Sphere and American variety Hodson were conducted. The researches were conducted on experimental fields of FSBSI "Primorsky Scientific Re- search Institute of Agriculture" near Ussuriysk. Soy was grown up according to the agrotechnology accepted for Primorsky Region. Cleaning of allotments was carried out by combine Sampo-130. In the size of average val- ues of grain yield in four years of supervision of the va-riety Sphere and Hodson did not differ, thus in favorable years the productivity was slightly higher in the variety Hodson, in unfavorable years - Sphere on 0.4-1.1 c/hectare was higher in the variety. Carried-out analysis of leading signs of structure of the efficiency of soy showed that in Sphere during less favorable season of 2017 bigger quantity of beans and seeds on a plant, higher mass of 1000 seeds and the mass of seeds from a plant were observed. The sphere surpassed Hodson in characteristics of mesostructure of photosynthetic device: to thickness and specific area the density of a leaf, the volume of palisade parenchyma cells. The vari- ety Sphere differs in bigger height of the attachment of lower beans, therefore, Hodson significantly surpasses in technological effectiveness and adaptedness to the conditions of Primorye. Thus, soybean variety Sphere doesn't give way to Hodson in productivity and morphofunctional characteristics of photosynthetic ap- paratus and in a number of signs it surpasses the varie- ty Hodson. Sphere is a perspective variety for cultivation in Primorye, and also for using in selection as the donor of the signs providing high photosynthetic abilities of assimilatory plant device.
soybean variety Sphere, productivity, mesostructure, Primorsky Region
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