scholarly journals ОЦЕНКА СОРТООБРАЗЦОВ КРАМБЕ В ЗАВИСИМОСТИ ОТ ГИДРОТЕРМАЛЬНЫХ УСЛОВИЙ

2020 ◽  
Author(s):  
T.Ya. Prakhova ◽  
E.L. Turina

Целью исследований являлась оценка сортообразцов крамбе абиссинской по продуктивности и адаптивности в зависимости от гидротермальных условий. Объектом исследований являлись сортообразцы различного эколого-географического происхождения. Изучение проводилось в контрастных климатических условиях Среднего Поволжья и степного Крыма в 2017-2019 годах. Продуктивность сортообразцов крамбе абиссинской варьирует в пределах 1,54-2,04 т/га, в среднем по двум регионам. В среднем за три года более высокий урожай отмечен у образцов к-39 (США) и к-35 (Германия), продуктивность которых составила 2,01-2,04 т/га, что превышает сорт-стандарт Деметра на 0,22 и 0,25 т/га. Данные номера отличались высокими значениями коэффициента адаптивности, который составил 1,04-1,13 и показывает их большую приспособленность к различным условиям возделывания. Сортообразцы из Канады (к-25) и из Чехословакии (к-34) сформировали урожайность 1,82 и 1,87 т/га, что несущественно превышает стандарт по урожайности. Прибавка здесь составила 0,03 и 0,08 т/га. Содержание жира в плодиках колебалась в пределах 29,68-32,20. По результатам данного признака выделился номер из Германии к-35, масличность которого составила 32,20. Наиболее стабильными по урожайности были образцы к-35, к-34 и к-10, параметры стабильности которых составили 22,8 26,1 и 29,0. Высоким значением показателя уровня стабильности сорта (ПУСС) отличались сортообразцы к-39 и к-10, значения данного признака составили 0,47 и 0,52 соответственно. При этом у данных номеров отмечена высокая экологическая устойчивость (0,49 и 0,53), что показывает более широкий диапазон их приспособленности к различным условиям произрастания.The aim of the research was to evaluate the productivity and adaptability of varieties of crambe abyssinica depending on hydrothermal conditions. The object of the research was varieties of various ecological and geographical origin. The study was conducted in contrasting climatic conditions of the Middle Volga and steppe Crimea in 2017-2019. The productivity of varieties of crambe abyssinica varied between 1.542.04 t/ha, on average in two regions. On average, for three years a higher yield was observed for samples k-39 (USA) and k-35 (Germany), which productivity was 2.01-2.04 t/ha, which exceeded the standard variety Demetra by 0.22 and 0.25 t/ha. These samples were distinguished by high values of adaptability coefficient, which amounted to 1.04-1.13 and showed their great adaptability to various cultivation conditions. Varieties from Canada (k-25) and Czechoslovakia (k-34) formed yields of 1.82 and 1.87 t/ha, which was slightly higher than the standard for yields. The increase there was 0.03 and 0.08 t/ha. The fat content in fruitlets ranged from 29.68-32.20. According to the results of this feature, the number k-35 from Germany was distinguished, the oil content was 32.20. The most stable yields had the samples k-35, k-34 and k-10, which stability parameters were 22.8 26.1 and 29.0. The varieties k-39 and k-10 were distinguished by a high value of the indicator of the variety stability level (IVSL), the values of this trait were 0.47 and 0.52, respectively. Moreover, these varieties had a high environmental sustainability (0.49 and 0.53), which showed a wider range of their adaptability to different growing conditions.

Author(s):  
G.N. Kuznetsova ◽  
◽  
R.S. Polyakova ◽  

We conducted the environmental assessment of the spring rapeseed cultivars bred at the Siberian experimental station (SOS): Kupol, Granit and 55 region, a promising line SL-691 and a variety Tavrion bred in VNIIMK in different soil-climatic zones of cultivation. Weather conditions in the Western Siberia and the Krasnodar region had distinctive features by precipitation amount and average daily air temperature for the years of research (2017–2019). The best year for growing of spring rapeseed regardless of the cultivation zone was 2017. In the Western Siberia, the worst year for growing according to the environmental conditions index was 2019 (Ij = -5.81), and in the Krasnodar region 2018 (Ij = -10.92). Data on varieties in the Western Siberia allowed us to establish that with a higher index (bi) of 1.32 and 1.24, respectively for the varieties Granit and 55 region, they have the greatest environmental plasticity and responded more actively to certain improvements in growing conditions. In the conditions of the Krasnodar region, the highest environmental plasticity was observed for the varieties Kupol and 55 region, with bi equal to 1.29 and 1.11, respectively. Regardless of the cultivation conditions, the line SL-691 was marked as unstable by its seed yield. The varieties developed at the Siberian experimental station (SOS) – a branch of the V.S. Pustovoit All-Russian Research Institute of Oil Crops had high oil content of 52.1–52.6% in the Western Siberia on average over the years of testing. In the conditions of the Krasnodar region, the average oil content of the seeds was 42.2–43.6%. Over the years of the research, this trait was little changed over the years and stable in varieties.


2021 ◽  
pp. 85-88
Author(s):  
Aleksandra V. Kazarina ◽  
Elena A. Atakova ◽  
Irina S. Abramenko

Relevance. One of the most important factors that determine the effective cultivation of soybeans in the Middle Volga region is the use of modern highly productive varieties adapted to growing conditions. To create a competitive variety, it is important to select sources that are adapted to the environmental factors of a particular region.Methods. Field experiments were carried out according to generally accepted methods. All counts and observations were carried out according to the Methodological Guidelines for Studying the Collection of Legumes. In 2016–2019, 36 early maturing and medium early maturing varieties of soybeans of various ecological and geographical origin, as well as breeding material created in local conditions, were studied in the breeding nursery.Results. It was found that the duration of the growing season over the years of study was largely determined by the duration of the flowering — ripening period (r = 0,96). Correlation analysis showed that a significant role in the formation of the yield of soybeans is played by hydrothermal conditions that develop during the generative phase of plant development. There is a high correlation between the level of yield and the average daily temperature and the sum of active temperatures (r = 0,79–0,82) during the flowering — ripening period. In the breeding nursery, the cultivars that most fully realize the genetic potential and reliably exceed the standard in productivity by 12,0–22,0% were identified: k-177, k-445/2 and IHAR-NK 88/2.


Castor oil (Ricinus communus L.) is an important commercial product. The climatic conditions of Ukraine determine the possibility of growing the castor as an annual crop. At the Institute of Oilseeds NAAS studied castor collection. The aim of the work was the selection of the most promising samples of castor oil, combining a large yield potential in a narrow range of vertical distribution for optimal technological parameters of mechanical harvesting with a high content of oil in seeds and ricinolic acid in oil. In the experience of 2015-2016, the manifestation of morphological features of 17 castor bean samples was studied. The height of plants, individual samples among themselves differed more than twice. Long-brush samples of ЕР118, К374, М203, К159 are distinguished on the basis of the length of the brush. The shortest brush was observed in sample K1008. The length of the productive brush in the studied samples is from 10.7 to 32.9 cm. Most castor bean samples under favorable conditions form brushes of the second and higher orders. According to this parameter, samples of Ep118 and selection No. 38 with four inflorescences of the second order are of the greatest interest. The largest brushes of the second order are similar in size to the brushes of the first order were observed in the samples: К1127, К810, К153. The adaptability of harvesting castor beads requires that the brushes of the first and second order coincide in height with each other, since the harvester can take a maximum of 60 cm. For the sum of the productive brushes of the first and second orders, the greatest potential yield will be provided by samples K159 and K1127. Among the studied collection stands out the small seed sample K159 and the large seed samples - PRL41 and K80. The average oil content in the seeds of the collection was from 52 to 61.4%. Sample38 had the highest oil content. The content of ricinolic acid in the collection was from 70.9 to 82.9%. Samples were isolated: К134, К1008, PRL41, К430 with the content of ricinoleic acid more than 80%. The results of the study of all parameters make it possible to isolate valuable technological samples. Sample K1064 with a high technological potential of productivity, with a seed oil content of 57.2%, has a not very high content of ricinoleic acid of 74.3%. Sample K1127 with an oil content of 58.6%, a mass of 1000 seeds of 265 g, a high potential of productive brushes has a wide variation in the arrangement of brushes. Sample K134 with a oil content of 57.1%, ricinoleic acid content of 80.7% has small second-order brushes and can be used as a single-cysts in a thicker seeding.


2021 ◽  
Vol 13 (6) ◽  
pp. 3502
Author(s):  
Somnath Bandyopadhyay ◽  
Aviram Sharma ◽  
Satiprasad Sahoo ◽  
Kishore Dhavala ◽  
Prabhakar Sharma

Among the several options of managed aquifer recharge (MAR) techniques, the aquifer storage and recovery (ASR) is a well-known sub-surface technique to replenish depleted aquifers, which is contingent upon the selection of appropriate sites. This paper explores the potential of ASR for groundwater recharge in the hydrological, hydrogeological, social, and economic context of South Bihar in India. Based on the water samples from more than 137 wells and socio-economic surveys, ASR installations were piloted through seven selected entrepreneurial farmers in two villages of South Bihar. The feasibility of ASR in both hard rock and deep alluvial aquifers was demonstrated for the prominent aquifer types in the marginal alluvial plains of South Bihar and elsewhere. It was postulated through this pilot study that a successful spread of ASR in South Bihar can augment usable water resources for agriculture during the winter cropping season. More importantly, ASR can adapt to local circumstances and challenges under changing climatic conditions. The flexible and participatory approach in this pilot study also allowed the farmers to creatively engage with the design and governance aspects of the recharge pit. The entrepreneurial farmers-led model builds local accountability, creates avenues for private investments, and opens up the space for continued innovation in technology and management, while also committing to resource distributive justice and environmental sustainability.


Botany ◽  
2015 ◽  
Vol 93 (5) ◽  
pp. 307-316 ◽  
Author(s):  
L.I. Lindström ◽  
L.F. Hernández

In sunflower (Helianthus annuus L.), there has been an intense genetic selection for achenes with agronomic value, such as greater mass, oil content, and disease resistance. However, the information regarding the anatomical events that control their growth and maturation is surprisingly scarce. The aim of the present work was to study sunflower male and female sporogenesis and gametogenesis, as well as cell division and enlargement and tissue differentiation in the ovary and the embryo, linking the timing of these events to two frequently used phenological scales and a thermal time scale. In addition, we propose an ontogenetic scale that integrates the results of the present work to that of previous studies on sunflower reproductive development. The unified scales presented here provide a framework for others to investigate the relationships uncovered in this study in different genetic backgrounds and under different growing conditions.


2020 ◽  
Vol 13 (1) ◽  
pp. 144
Author(s):  
Dianxi Zhang ◽  
Muhammad Safdar Sial ◽  
Naveed Ahmad ◽  
António José Filipe ◽  
Phung Anh Thu ◽  
...  

Water scarcity is rising as a global issue, because the planet earth is facing a global water crisis, which is considered something that can destroy environmental sustainability of our planet. The fact is that humanity’s demand is depleting natural resources faster than nature can replenish itself; if human habits and unsustainable use of water resources do not change, water scarcity will inevitably intensify and become a major cause of conflict among different nations of the world. The water scarcity issue is a crucial issue but unfortunately it has not received due attention in past. Pakistan, which once was a water abundant country, now facing a situation of water scarcity. Pakistan has a poor irrigation system which results 60% loss of its water; Pakistan uses more water for crop production than other countries. Likewise, the country harvests water from rainfall, rivers, snow, and glaciers. The country is facing a serious water crisis that is caused by different factors, such as changing climatic conditions, rising population, poor irrigation system, poor political will, and rapid urbanization. The water crisis of Pakistan is expected to worsen in coming years. This is a drastic situation which calls for emergency measures. With this background, the present study provides a detailed view of the water situation in the country with challenges to water management. The study also suggests some recommendations for policymakers to improve the water crisis situation in the future.


2018 ◽  
Vol 10 (7) ◽  
pp. 2548 ◽  
Author(s):  
Mariangela De Vita ◽  
Paolo Beccarelli ◽  
Eleonora Laurini ◽  
Pierluigi De Berardinis

The aim of this research, carried out in collaboration with Maco Technology Inc., was to analyse the energy performance of temporary textile structures that are often used to host itinerant events. This paper illustrates the dynamic simulations carried on the Ducati Pavilion, designed by Maco Technology, which hosted Ducati staff during the different stages of the Superbike World Championship. Specific aspects relating to the structural/constructive system of the project were also analysed. The theme of energy saving and carbon reduction is of great importance in temporary and itinerant structures and environmental sustainability in relation to the materials used, storage, re-use, mode of transport and ability to respond efficiently to the climatic conditions of the installation sites is an important aspect. The Ducati Pavilion was modelled and analysed from an energy point of view using Design Builder software. Ways of improving performance were analysed under summer conditions. The paper focuses on the importance of optimizing the performance of textile envelopes: the methodology proposed allows visible savings in terms of energy consumption and achieves good levels of environmental comfort in temporary buildings with low thermal mass structure.


2021 ◽  
Vol 250 ◽  
pp. 01005
Author(s):  
Manuela Tvaronavičienė

Adaptation strategies to the climate change include measures that can be taken to take account of the new climatic conditions. This paper aims at assessing the effects of climate change on environmental sustainability. This sustainability constitutes a major problem in many countries and regions around the world that experience industrial pollution, degradation of land as well as natural disasters caused by the global warming. The paper shows that adaptation strategies are often parallel strategies that can be integrated simultaneously with the management of natural resources. They can make resources more efficient and resilient to climate change. The paper shows that reducing the carbon footprint by more than 50 percent by 2030 and eliminating it by 2050 might be a viable solution how to tackle the climate change and support the environmental sustainability.


2020 ◽  
pp. 126-129
Author(s):  
O. A. Shchuklina ◽  
I. N. Voronchikhina ◽  
A. D. Alenicheva ◽  
I. N. Klimenkova ◽  
V. V. Voronchikhin ◽  
...  

Relevance. The specifics of the fresh cut flowers market in the Russian Federation is such, that 85-100% of the total volume of flowers sold is imported. The most popular flowers among Russian consumers are roses (up to 60% in the total share of fresh flowers), chrysanthemums and carnations, all of which require certain growing conditions. Recently, the market of local seasonal flowers has begun to develop, the main players in which are small farms or household plots. Material and methods. This article presents the data about market analysis of fresh cut flowers in Russia for the last five years (2015-2020). For this analysis were used the methods applied in economics. The main information database of this research includes data from official state statistics; open data from analytical centers; federal and regional regulations; data from the Federal agency for technical regulation and Metrology; reference materials of specialized data on research field; data from industry-specific portals; sites; articles and reviews written by producers of fresh cut flowers in Russia and worldwide. Results. Russia is one of the top six importers of fresh cut flowers in the world. The most popular flower among Russian consumers is a rose. There is not much suitable soil and climatic conditions in Russia for growing it on a commercial scale in the open ground. In 2018-2019 according to Rosstat data the number of flowers, grown for cutting in Russia, was estimated 263,3 billion pieces. However, now Russian flower producers are not able to meet domestic demand for fresh flowers, so there is no almost export.


2021 ◽  
Vol 22 (2) ◽  
pp. 155-166
Author(s):  
O. P. Kibalnik ◽  
I. G. Efremova ◽  
Yu. V. Bochkareva ◽  
A. V. Prakhov ◽  
D. S. Semin

The review considers the unique diversity and versatility of the use of sorghum crops. The dependence of the yield of biomass and grain of varieties and hybrids of sorghum crops on the applied elements of the crop cultivation technology is analyzed: width of row spacing, density of standing plants in different zones of sorghum sowing in the Russian Federation. A variety of soil and climatic conditions of sorghum cultivation regions differ in the temperature regime, the reserves of soil moisture before sowing, the level of soil fertility, which determines the need to select the optimal elements of technology that ensure the achievement of the highest yield of varieties per unit area with the lowest material and technological costs. The analysis of the ways of placing plants on the own area also indicates the significant role of varietal biological features in increasing the sorghum yield, the purpose of sowing, and the level of field contamination. With limited resources of productive moisture for high-yielding sorghum varieties with a powerful habitus, wide-row sowing with row spacing of 70 cm and the density of standing plants 80-350 thousand per 1 ha, depending on the variety. Low-growing early-maturing thin-stemmed forms of grain sorghum should be sown in the usual ordinary row way with a row spacing of 15 or 30 cm with plant density of 500-600 thousand/ha. Sudan grass varieties that can withstand high density of standing plants (depending on agroclimatic conditions – up to 1.0-3.0 million per 1 ha) are cultivated using the technology of spiked cereals. As the result of the literature data analysis, the following trend has been revealed: the drier the growing conditions, the greater the requirements for choosing the optimal parameters of agrotechnical methods of cultivating sorghum crops aimed at the reducing the number of plants per area unit considering the specific character of the region of sorghum sowing.


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