Economic and biological characteristics of the biotypical composition of spring wheat varieties

The aim of this work is to study the component composition and intravarietal polymorphism of storage proteins of three soft and one hard varieties of spring wheat and their relationship with a complex of economically valuable traits. The studies were carried out in 2018–2020 by the department of genetics and immunity at the institute, in the conditions of the southeast of the Central Black Earth Region. In the course of the work, the identification of gliadin biotypes was carried out by electrophoresis in 6.5% polyacrylamide gel, the results of which revealed that the genome of the studied varieties contains: Chernozemnouralskaya 2 (5 biotypes), Voronezh 18 (5 biotypes), Voronezh 20 (4 biotypes) and a solid variety Voronezhskaya 13 (1 biotype). The selected biotypes were propagated for 3 years, analyzed and evaluated according to the indicators of the structural analysis of the elements of productivity and quality. Based on this, their economic and biological characteristics were given. It was found that biotypes 3 and 4 of the Chernozemnouralskaya variety 2, biotypes 1 and 2 of the Voronezhskaya 18 variety, biotypes 1 and 2 of the Voronezhskaya 20 variety proved to be the most productive relative to the standard during the study period. As for the quality indicators, as a result of the research the difference in quality of gliadin biotypes was revealed, which is important to take into account in breeding work to increase genetic diversity when creating high-quality varieties. The ones with the best quality were: biotype 1 of the Chernozemnouralskaya variety 2, biotypes 2 and 3 of the Voronezhskaya 18 variety. The best biotypes, distinguished by a complex of economically valuable traits, which differ from the initial variety, can be used in further breeding work for the accelerated creation of highly productive and high-quality spring wheat varieties.

A Rare Variety of Adenoid Cystic Carcinoma involving Submandibular Salivary Gland

IntroductionAdenoid cystic carcinoma, an uncommon malignant salivary gland neoplasm, is known for its long clinical course, indolent growth, neural invasion, local recurrence and late distant metastasis. Three distinct histological patterns have been identified, amongst which, solid pattern is the rarest one having the worst prognosis. Materials And MethodsA case of sixty year old male patient presented with a swelling in the left side of the neck, below the jaw gradually enlarging during the last three years. FNAC from the neck swelling was suggestive of benign adenoma of the salivary gland, possibly basal cell adenoma or pleomorphic adenoma. Submandibular gland was excised. Histopathological examination confirmed the solid pattern of adenoid cystic carcinoma, which is the rarest among the three distinct histological subtypes of the malignancy. DiscussionAdenoid cystic carcinoma is well known for its perineural spread. In cases of submandibular gland adenoid cystic carcinoma, surgical wide excision is very much possible and in T1 or T2 cases post-operative radiotherapy may not be needed. In our case, post operative radiotherapy was given for best local control, as the tumour showed histopathlogical solid variety, grade III pattern, which is known to have the worst prognosis.

PROPER HYPERSUBSTITUTIONS OF VARIETIES OF PSEUDO-COMPLEMENTED SEMILATTICES

We determine all V-proper hypersubstitutions for the variety of pseudo-complemented semilattices. Moreover, for any monoid [Formula: see text] of hypersubstitutions we will give the greatest M-solid variety of pseudo-complemented semilattices.

Derived Varieties and Derived Equational Theories

This paper describes a derivation process for varieties and equational theories using the theory of hypersubstitutions and M-hyperidentities. A hypersubstitution σ of type τ is a map which takes each n-ary operation symbol of the type to an n-ary term of this type. If [Formula: see text] is an algebra of type τ then the algebra [Formula: see text] is called a derived algebra of [Formula: see text]. If V is a class of algebras of type τ then one can consider the variety vσ(V) generated by the class of all derived algebras from V. In the first two sections the necessary definitions are given. In Sec. 3 the properties of derived varieties and derived equational theories are described. On the set of all derived varieties of a given variety, a quasiorder is developed which gives a derivation diagram. In the final section the derivation diagram for the largest solid variety of medial semigroups is worked out.