scholarly journals The formation of seed productivity of a peas collection of different morphotypes in the Middle Volga region (PoVolzhie)

2020 ◽  
pp. 32-38
Author(s):  
A. I. Katyuk

The purpose of the current paper was to study the features of the formation of productivity components and their correlation in the peas varieties of different morphotypes to develop new breeding material with high productivity. The study was carried out in the conditions of the Middle Volga region (PoVolzhie) in 2005, 2008-2011 and 2018-2019 according to generally accepted methods. The objects of the study were the pea varieties of various ecological and geographical origin of domestic and foreign selection. There were studied from 50 to 194 varieties in different years. High seed productivity was identified in the mustachioed determinant group (3.5 g) and the chameleon group (4.0 g). The seed weight in the peas varieties belonging to these groups was 0.5 and 1.0 g per plant or on 16-30% higher than that of the traditional leafy indeterminate group of varieties, respectively. There has been established a positive correlation between seed weight per plant and number of seeds per plant (r = 0.742-0.887), number of beans per plant (r = 0.736-0.814) and seed weight per fertile node (r = 0.716-0.851). There has been shown that the variability of pea productivity was largely stipulated by number of seeds per plant in the favorable climatic years and by seed weight per fertile node in the arid years. In various morphological groups there have been identified the sources of high seed productivity, maximally adapted to the conditions of the region. The best sources ‘Ras tip', ‘Az26', ‘Az96637', ‘Flagman 9', ‘Az931776', the determinant ‘VSKhI', ‘Harvus', ‘Faraon', ‘Flagman 7', ‘Orel', ‘Kuibyshevsky', ‘Voronezhsky', ‘B3390/11') will be included in the breeding process.

2021 ◽  
Vol 16 (4) ◽  
pp. 55-60
Author(s):  
Ol'ga Timoshkina ◽  
Oleg Timoshkin

The article presents the data of assessing the productivity and nutritional value of selection samples of creeping clover in the nursery of the competitive variety testing of 2016 sowing for three years of use. The purpose of the research is to identify a promising breeding material of creeping clover for creating a variety with high productivity of green mass and seeds, suitable for mechanized harvesting of seeds for the conditions of the forest-steppe of the Middle Volga region. The research was carried out in 2017-2019 on the experimental field of a separate subdivision of Penza FGBSI FSC of BC in accordance with the methodological instructions for the selection of perennial grasses. On average over three years of use in terms of the yield of green mass – 15.00-16.44 t/ha, cultivar samples of creeping clover V-92, Yu-90, P-97, Pl-90-4 significantly exceeded the VIK-70 standard (14,01 t/ha) by 7.1-17.3%, for the collection of dry matter – 3.49-3.97 t/ha varieties V-92, Yu-90, P-97 and Pl-90-3 reliably exceeded the standard (3.29 t/ha) by 6.1-20.7%, in the collection of digestible protein – 0.44-0.49 t/ha, the varieties B-92 and P-97 exceeded the standard (0, 40 t/ha) by 10.0-22.5%. Maximum values of the yield of green mass (16.44 t/ha), dry matter collection (3.97 t/ha), digestible protein (0.49 t/ha), feed units (5.04 t/ha) and exchange energy (49.12 GJ/ha) on average for the years of testing showed the sample P-97. This specimen significantly exceeded the standard in terms of structural elements and seed yield by 50.5%, in the height of leaf petioles by 3.5% and peduncles by 2.5%, which is important for mechanized harvesting of seeds. When selecting for the productivity of creeping clover, one should pay attention to the signs associated with the yield of green mass and seeds. The length of leaf petioles correlates with the length of peduncles (r = 0.78), the number of seeds in the head (r = 0.46), the number of inflorescences in the head (r = 0.47), with the collection of dry matter (r = 0.31). The length of the peduncles correlates with the collection of dry matter (r = 0.30), with the number of inflorescences in the head (r = 0.54), and with the number of seeds in the head (r = 0.51). The number of inflorescences in the head correlates with the number of seeds in the head (r = 0.61) and with the yield of seeds (r = 0.31)


2020 ◽  
Vol 27 ◽  
pp. 00043
Author(s):  
Anatoly N. Minin ◽  
Elena Kh. Nechaeva ◽  
Galina K. Markovskaya ◽  
Julia V. Stepanova

Eight elites of Russian plum were created and transferred to the state test as a result of many years of breeding work on interstitial hybridization in the Samara region. According to the results of many years of observations and field surveys, the most frost-resistant varieties of Russian plum were identified; the nature of damage to plum plants in severe winters was studied. Experimental data proved the promise of growing Russian plum varieties in the Middle Volga region. The varieties Kompotnaya (23.6 kg per tree), Mara (19.4 kg), Smart (13.8 kg) and Poselkovskaya (10.4 kg) have high productivity. Ripening dates, weight and taste of fruits in Russian plum depend on the variety, air temperature and the amount of precipitation. The varieties possess large fruits (weighing 35-50 g) Kuban Comet, Found, elite Giantess, Canning, Dressy, 1/17. The best tastes were the varieties Kuban Comet (4.5 points), July Rose (4.4 points), Found (4.5 points), Pramen (4.5 points), the elite Long-awaited and Canned (4.4 points).


Author(s):  
L.А. Kosykh ◽  
◽  
А. V. Kazarina ◽  

The research was carried out in the fields of Povolzhsky research Institute of selection and seed farming named after P. N. Konstantinov in the laboratory of introduction, selection of feed and oilplants in 2016-2019. The soil of the experimental field is typical low-humic medium-sized light clay chernozem. The object of research was a variety of oilseed flax Kinelsky 2000, approved for use in the Middle Volga region. Agro-climatic conditions in the years of research during the growing season differed both in the amount of rainfalls from 74.3 mm in 2019 to 187.0 mm in 2017, and in the temperature conditions from 1776.50 C in 2017 to 2074.00 C in 2018, which allowed to determine objectively the productivity of oilseed flax. The article shows the results of studying the influence of meteorological conditions on the length of vegetation season, yield, oil content in seeds, oil collection per hectare, plant height, the number of capsules per plant, the number of seeds in a capsule and the weight of 1000 seeds. The correlation of the sum of active temperatures, rainfalls and hydrothermal factor (HTF) for the vegetation period with the main economically valuable characteristics of oilseed flax is established. Analyzing the data obtained, it can be concluded that the yield of oilseeds, plant height, number of seeds in the capsule and oil collection per hectare were significantly affected by the amount of rainfalls during the vegetation period and the HTF. The sum of active temperatures affected the length of the vegetation period and the number of capsules on the plant.


2019 ◽  
pp. 10-15 ◽  
Author(s):  
Nadezhda Nikolaevna Zakharova ◽  
Nikolai Grigoryevich Zakharov ◽  
Vladimir Nikolaevich Ostin

Research has been conducted on forming the productivity elements of main ear of soft winter wheat in the conditions of the forest-steppe of the middle Volga region. It was found that the productivity of main ear is in a strong positive correlative dependence on a number of seeds per ear and on the mass of 1000 grains. The other elements of the structure were also examined in detail – the ear length, the number of spikelets per ear, intravarietal and intervarietal variability of them.


Author(s):  
Tatyana M. Guseva

The article deals with not well studied problem of the class societies’ participation in the development of librarianship in the chief towns of the Middle Volga Region. In the second half of the 19th century the initiative of libraries’ opening often come from the citizens. They created the trustee committees, whose members served the librarianship for free, donated books, money, and actively participated in the organizing of charitable performances.


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