To the question of diagnostics and protection of soils from deflation in Stavropol territory

The research aim is to assess the degree of deflation when comparing traditional crop cultivation technology using soil treatment and no-till. Object of research is located on the territory of the Ipatovsky district of the Stavropol territory, where the method of evaluating the deflation of ordinary chernozems (WRB 2006 Voronic Chernozems Pachic) by morphometric indicators and properties of the soil profile has been tested on the example of 2 farms using different technologies. Methods. In this research, a morphometric method for estimating deflation was used, based on measuring the capacity of the humus horizon of soils based on data from manual drilling of wells fixed by GPS in 5-fold repetition. Results and practical significance. The obtained data revealed a decrease in the capacity of the humus horizon in the treated soils (on average by 19-21 cm) compared to the soils of the farm that has been using no-till technology for the past 13 years. The forest belt serves as a buffer zone, it accumulates the dusty material of chernozems carried out during deflation with a capacity of up to 40-50 cm. Deflation of arable soils is caused by cultivation and use of pure steam in crop rotations (every third year). It leads to the transformation of the soil profile as a whole, changing the species composition of chernozems by one gradation from medium and carbonate (no-till) to low-power and high-carbon (traditional technology). The reduction or cessation of deflation of chernozems in the no-till technology is associated with its anti-deflation feature – the distribution of crop residues on the soil surface, the refusal to use pure steam, which together leads to the restoration of degraded properties of chernozems. Scientific innovation consists in testing a field morphometric method for estimating deflation in time and space, which can be used for monitoring soil cover (soil mapping, agrochemical surveys, etc.) or targeted research.

Welcome back Mr. Rudkin: differentiating Papilio zelicaon and Papilio polyxenes in Southern California (Lepidoptera: Papilionidae)

We studied wing pattern characters to distinguish closely related sympatric species Papilio zelicaon Lucas, 1852 and Papilio polyxenes Fabricius, 1775 in Southern California, and developed a morphometric method based on the ventral black postmedian band. Application of this method to the holotype of Papilio [Zolicaon variety] Coloro W. G. Wright, 1905, the name currently applied to the P. polyxenes populations, revealed that it is a P. zelicaon specimen. The name for western US polyxenes subspecies thus becomes Papilio polyxenes rudkini (F. & R. Chermock, 1981), reinstated status, and we place coloro as a junior subjective synonym of P. zelicaon. Furthermore, we sequenced mitochondrial DNA COI barcodes of rudkini and coloro holotypes and compared them with those of polyxenes and zelicaon specimens, confirming rudkini as polyxenes and coloro as zelicaon.

Morphometric Study of the Myocardial Changes at the Ischemic Cardiomyopathy

The pathomorphology of the heart muscle with ischemic cardiomyopathy was studied. Own algorithm of morphometric method of research was applied. It was established that the morphogenesis of ICMP was accompanied by the development of severe dyscirculatory, dystrophic-atrophic, sclerotic and moderately expressed compensatory processes in the myocardium.