All-Russian Research Institute of crops
Author list of organization
List of articles written by the authors of the organization
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ORIGIN OF SORGHUM AND DEVELOPMENT OF ITS BREEDING
06.00.00 Agricultural sciences
DescriptionSorghum is cultivated in many countries of the world on around 50 ml hectares. The main producers of sorghum are India, Nigeria, Sudan and the USA. Sorghum comes from equatorial Africa. India and China are the secondary places of origin and formation. The USA achieved great success in breeding, seedgrowing and agro technologies of grain sorghum. In the country sorghum occupies 14.4% of the world amount of sowing areas; the gross yield is 40%. Sorghum breeding on Don was started by E.S. Yakushevsky in 1938. In 1963 after a long break the work was restarted at the Zernograd Breeding Station headed by Ya.I. Issakov. At present the amount of sowing areas for sorghum is constantly increasing in RF (220.3 thousand ha in 2015). It occurs due to aridity of climate and more frequent use of the crop as insurance. Besides, the development of white kernel varieties gave an opportunity to use sorghum for starch and spirit. There are 221 varieties and hybrids of sorghum registered in the State List. The main directions of breeding work with grain sorghum are early maturity, suitability for mechanical harvesting, productivity and grain quality. The ARRIGC developed the white kernel early maturing varieties ‘Velikan’, ‘Zernogradskoe 88’, ‘Ataman’ without necessity to be dried after harvesting, with productivity of 8 t/ha. The main directions of breeding work with sweet sorghum are early maturity, high intensity of initial growth, low height, resistance to lodging, high productivity and quality of green chop. The ARRIGC developed the varieties for fodder use (‘Listvenit’), for spirit and treacle (‘Debyut’ and ‘Zernogradsky Yantar’). Sorghum due to origin and varietal diversity even in dry and hot parts of the world allow obtaining stable, high yields of grain and green chop. This makes sorghum the leading grain-forage and food crop
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CORRELATION AMONG QUANTITATIVE TRAITS OF SORGHUM GRAIN
06.00.00 Agricultural sciences
DescriptionAt present, the farmers have to develop varieties and hybrids, which fully meet the requirements of agricultural production. The study of correlation among economic-valuable characteristics of grain sorghum is of great importance nowadays, as it allows optimizing plant-breeding work at its early stages. For a more productive process of developing of the initial material in breeding, it is necessary to determine the correlation among the traits to identify the strongest connections, and to conduct further work, based on the obtained data. Knowing the correlation, the estimation of timeconsuming economic trait can be replaced by the assessment of the simpler trait correlated with it. The article presents the analysis of correlation among various traits of grain sorghum. The degree and direction of the correlation have been estimated. The significant effect of the length of vegetation period on many traits has been seen. There have been also mentioned the characteristics, having an influence on a size and a number of kernels per panicle. There is a positive correlation between a size of panicle and dimensions of a leaf (length, width). Along with it there has been found a positive correlation among linier dimensions of a panicle, length and width of a leaf, a number of leaves with a number of kernels per panicle. While studying the correlation between an extension of a panicle with other traits, there has been noted a negative correlation between a length of vegetation period, length and width of a leaf, but there has been found a positive correlation with plant height. There has been found a positive effect of 1000-kernel weight, a number of kernels per panicle, a number of leaves and their dimensions on the formation of kernel weight per panicle
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06.01.05 Selection and seed production of agricultural plants (agricultural sciences)
DescriptionThe purpose of the work was to test the winter wheat varieties artificially infected with North-Caucasus brown rust to identify its harmfulness. There was carried out a two-stage testing on two sets (8 and 10) of varieties that differed in their resistance to the pathogen. As a result, there has been identified high brown rust harmfulness in susceptible varieties, which led to a yield decrease from 16.3 to 32.2%. Among the maximum infected varieties, there has been identified the most tolerant variety ‘Tarasovskaya 29’ which, when damaged to 100%, had a minimum yield decrease (less than 10.6%). The poorly susceptible to brown rust varieties reduced their yields from 11.2% to 20.7%. Among them, the variety ‘Spartak’ showed lower rates of a yield decline. Among the five varieties that showed an average brown rust affection, there have been noted various indicators of a yield decrease. The variety ‘Donskaya Yubileynaya’ showed a minimum decrease of a yield and its structural elements under the conditions of artificial infection with brown rust; and together with the variety ‘Tarasovskaya 29’ can be classed to the varieties tolerant to brown rust. When predicting brown rust epiphytoty the susceptible and medium-resistant wheat varieties require obligatory protection with fungicides