Scientific Journal of KubSAU

An important stage of breeding work on the development of new varieties is to test these varieties in the regions for which they are created. Optimum growing season is one of the adaptive properties of varieties, needed to cultivate them in certain circumstances

Basic aim of institute’s breeding is to keep, renew and increase selection and genetic resources of Nicotiana tabacum. Final stages of this work are competitive and state sort testing procedures. Their results are base for zoning new sorts. In the article, the results on testing 8 new tobacco sorts of Trapezond and Ostrolist sort type are presented. Testing on experimental field situated in Severskii district of the Krasnodar region lasted for five years. For this purpose, phenological observations, biometric and technological properties measuring, plant productivity and dried tobacco quality assessments and other operations were carried. As the result, Trapezond 25, Ostrolist 360 and Sheptalskii 63 sorts may be recommended for zoning and utilizing in industry. Trapezond 25 and Sheptalskii 63 are sorts with high productivity, high quality of dried tobacco and good curing properties. Ostrolist 360 when earlymiddle maturing keeps high productivity and quality of cured tobacco. Other sorts: Trapezond 115, Ostrolist 311, Ostrolist 149, Ostrolist 90, Krupnolistniy 22 can be initial material for further selection

The review of the latest tobacco selection researches is given in the article. The basic aim of these researches is creation of new sort material, which is ecologically stable, and corresponding to energy conservation demands. New tobacco sorts are presented

Nicotiana tabacum and rustica are facultative self-pollinated plants, therefore, because of pollination peculiarities, specific methods are applicable to growing seeds of this plants. Researches on mass, individual and family, recurrent methods of seeds selection for productivity and sowing properties are carried in the institute for revealing most efficient methods of getting seeds. Seeds growing system for Nicotiana tabacum and rustica is a part of general seeds growing system for all agricultural plants and consists of breeding, testing new sorts, mass reproduction of seeds with retained biological and productivity properties, seeds harvesting and controlling their sort and sowing properties. Primary growing of nicotiana tabacum and rustica seeds is carried by individual and family or recurrent selection and further testing of chosen plants, distinctive for this sort, on economically valuable and biological properties. Peculiarities of each zoned sort are kept by retaining its primary genome with constant selection of highly productive genotypes, specific for this sort. Well-organized seed growing system leads to sort potential revealing. Biotype composition of sort is obviously changing in a few years, so primary seeds growing system should be constantly improved

Tobacco collection of All-Russian research institute of tobacco, makhorka and tobacco products is unique and only in the world because of its quantity and composition. It has 4500 foreign and national sorts of tobacco, Nicotiana Rustica and wild species of Nicotiana variety from 70 countries around the world. According to sort breeding aims, compliant with agricultural demands for 20 year period (1994-2014), 15 000 sorts of tobacco, Nicotiana Rustica and wild species of Nicotiana variety were analyzed. 820 donor sorts with valuable properties were defined and the best of them were involved in breeding process. During national selection history on the base of institute’s world tobacco collection over 180 sorts and hybrids of tobacco were created by our breeders. In recent years the interest from farmers and other small plant growers in tobacco production is constantly raising. As some of them are from northern non-traditional for Russia tobacco growing regions there is necessity for more intense utilization of the world collection’s genetic resources