scholarly journals Seed productivity of different tomato varieties under the conditions of the Novosibirsk region

2019 ◽  
pp. 44-49
Author(s):  
Tatiana V. Steinert ◽  
Zinaida P. Sinitsina ◽  
Anatoliy V. Aliluev ◽  
Lyudmila M. Avdeenko ◽  
Nadezhda S. Teplova ◽  
...  

Relevance Among vegetable crops, tomato is one of the leading places. In Siberia, tomato production is currently concentrated mainly in small farms and the individual sector. The problem of expanding the assortment of this culture in connection with constantly increasing market requirements remains always relevant. Material and methods The purpose of the work is the development of tomato seed production methods of varieties of selection of SibNIIRS. The studies were carried out in 2014-2018 at the experimental vegetable section of SibNIIRS - a branch of the ICG SB RAS. Results The results of many years of work on the study of seed and marketable productivity of zoned varieties and prospective tomato samples from the Urals andSiberia are presented. It has been established that in the conditions of a short growing season, high productivity is shown by varieties from early and mid-season groups. The highest sowing qualities are formed when sowing in time, optimal for the zone – the third decade of April. Early seeding shifts the phenological phases towards their rapid passage, but this creates unfavorable conditions for setting – stress during transplants, unfavorable weather. During late sowing, seeds are formed with low sowing qualities due to insufficient heat supply, especially for varieties from late ripeness groups. Germination energy and germination are higher in seeds obtained from fruits taken in the phase of full biological ripeness in all varieties. With long-term ripening (eat fruit in the phase of technical ripeness) there is a high risk of seed germination inside the fruit on the one hand and lack of nutrients, which invariably affects sowing qualities.

2017 ◽  
Vol 72 (1) ◽  
pp. 55-64 ◽  
Author(s):  
Ulrich Eisel

Abstract. The quantitive revolution in geography was the methodological expression of a shift in paradigm. Nomological thinking took over from the idiographic approach of classic geography. The classic paradigm had been that of a desirable identity of concrete working, active humans with their concrete natural surroundings: landscape was imagined as Lebensraum. The logic of industrial production processes contrasts with this; it creates an identity of scientifically analysed human work sequences with machines, and it thus represents a form of adapting to nature by abstracting holistically integrated ways of carrying out work. The geographical paradigm had no theoretical tools with which to approach this relationship between humans and nature. With regard to the theoretical ideas underlying it, this methodological change corresponds, on the one hand, to the transition from following a humanist concept of the individual, which guides idiographic thinking, to using a democratic concept of the individual, which correlates with the principles of experiment-based empirical sciences. On the other hand, geography's move towards an abstract concept of space reflects the degree to which industrial production methods are abstracted. The spatial approach, the behavioural approach, and humanistic geography are interpreted and contrasted with the idiographic paradigm within this coordinate system.


2013 ◽  
Vol 20 (20) ◽  
pp. 59-69
Author(s):  
Gábor Kozma ◽  
Attila Barta

Abstract One of the most important segments of the post-1990 transformation of territory-based administration in Hungary was the changing of the geographical structure of deconcentrated state administrative organisations. The study, on the one hand, provides a brief overview of the history of deconcentrated state administrative organisations in Hungary, and discusses the regional characteristics of the organisational transformations after the political changes, taking six moments in time (the middle of 1994, 1998, 2002, 2006, 2010 and 2012 respectively) as the basis. On the other hand, using the same six snapshots in time, it examines which settlements experienced favourable or unfavourable changes, and what factors influenced the selection of the seats for these institutions. The results of the survey indicated that the alignment of territorial structure of deconcentrated state administrative organizations to the planning-statistical, NUTS 2 regions has already begun at the end of the 1990s. The government formed in 2006 took significant steps in the area of aligning the spatial structure of the organizations with the planning-statistical regions; however, in the period after 2010 the significance of the county level increased again. In the period examined, no significant changes took place at the top and at the bottom of the list according to the number of seats: the largest settlements of the individual regions reinforced their leading positions.


2019 ◽  
Vol 6 (1) ◽  
pp. 5-23 ◽  
Author(s):  
Richard Madsen

Both the Chinese state and the Vatican have an interest in maintaining more regular control over local Catholic community life. Their interests partially converge in seeking a regularized process for selecting Catholic bishops in the officially recognized part of the Chinese Church. This overlapping of interests is the basis for the “provisional agreement” between the Vatican and China on the selection of bishops signed on September 22, 2018. The agreement fails to address the area where Sino-Vatican interests diverge, i.e., the status of the thirty-six “underground” bishops, recognized by the Vatican but not by the Chinese government. Meanwhile, grassroots Catholic communities in China are deeply embedded in local social structures and their leaders have long exercised a considerable degree of agency in managing local affairs and adapting Catholic practices to local culture. The interaction between local communities and the long-term development of the Chinese Catholic church will depend, on the one hand, on the complex cooperative and competitive arrangements between the Vatican and the Chinese state and, on the other hand, on the interaction between the agency of local communities and the forces of control from above.


Author(s):  
Vojtěch Šimon

Abstract KV UMa (XTE J1118+480) is an X-ray binary that is known to undergo outbursts in 2000 and 2005. This paper presents the discovery of a large outburst starting in 1927 on the archival photographic plates and an analysis of the long-term optical activity of this system. We used the photographic data from DASCH (Digital Access to a Sky Century @ Harvard). We placed the 1927 outburst in the context of the observed outbursts of KV UMa. We show that it is a double event, with a precursor similar to the one of the outbursts in 2000. We find a big difference between the 1927 and 2000 outbursts as regards the length of the gap between the precursor and the main outburst. It is more than 250 d in 1927, whereas it is about 20 d in 2000, although the brightnesses of all peaks are mutually comparable. We also show that the individual optical outbursts of KV UMa differ from each other by the duration of the stage of a slow decline of brightness (sometimes roughly a plateau). This determines the length of the entire main outburst. Both the peak magnitude and the brightness of the outburst when the slow decline transitions to a steep final decaying branch plausibly reproduce in all three outbursts. In the interpretation, the short duration of the precursor is caused by the fact that only the thermal-viscous instability operated in the accretion disk while also the tidal instability of the disk contributed in the subsequent main outburst.


Author(s):  
G. Schönnenbeck

Abstract Stepless vehicle drives will assume their place next to automatic switching units throughout the world if they meet their expected fuel-saving potential. This necessitates optimizing the individual components of the CVT as regards their efficiency. The main source of losses are the hydraulic supply units and the losses which result specifically from non-positive transmission. In the case of stepless chain conveners, these result mainly from friction disk deformation. These losses account for 50 to 70 % of total CVT losses. Both loss components are influenced by the lubricant to a significantly greater extent than it would appear at first sight: In the case of fully-hydraulic clamping and control systems, the viscosity and its long-term stability determines the degree of leakage losses and therefore the size of the pump or pump combinations. This applies to pressure levels between 20 and 40 bar. This in turn is directly proportional to the hydraulic losses on the CVT. The friction coefficient of the lubricant determines the level of the necessary clamping forces. These are responsible for friction-disk deformation. Also of importance as far as the selection of lubricant is concerned is its influence on the CVT service life. The critical service life limits for chain converters are chain breakage (not the subject of this report) and evidence of wear, i.e. grey staining, sheave-grooving, pitting, scoring and rocker pin wear. Standardized test methods exist at P.I.V. for both wear manifestations and for the friction coefficient, these tests allowing a targeted selection of lubricants.


1987 ◽  
Vol 114 (3) ◽  
pp. 551-568 ◽  
Author(s):  
A. J. Wise

8.1 This paper is concerned with the selection of investment portfolios to meet specified criteria which involve the liabilities of a long term investing institution such as a pension fund or a life office. In Part 1 (5) I showed a certain relationship between, on the one hand, portfolios selected according to a criterion of pure matching to the liabilities and, on the other hand, portfolios selected according to a more general criterion of ‘efficiency’. This connection points to a particular actuarial approach to the selection of portfolios, which is now further examined in Part 2.8.2 Writing Part 2 separately presents an opportunity to re-state the main ideas. The next few paragraphs recapitulate the basic points with a view to reducing, within the subsequent discussion, the amount of cross-reference to Part 1, and to the three preceding papers on which the study is based.


2001 ◽  
Vol 40 (3) ◽  
pp. 291-323 ◽  
Author(s):  
Anne Kugler

July 25, 1700. My Custom hath been of late, to be in Bed from Nine to Six, the other 15 Hours I am 12 at least, alone. When I arose this Morn: I mett with a snare laid for me by an Instrument of the Enemy of Souls. … Since it is not possible for me to redress these Domestick greivances, I wou'd notice them to no other purpose, but to find by what means to sustain and bear them well. What if I try this expedient? Never to speak any thing but what is necessary to be said for some Use or End. that so my Mind may be kept more Close to the One thing Needfull, from which these vexations too much Distract it.So began Lady Sarah Cowper's sixteen-year enterprise in self-justification. Between 1670 and 1700 this English gentlewoman had already filled a dozen commonplace books with extracts from poems, sermons, scripture, and essays, consciously searching for an emotional and intellectual outlet. But in July of 1700 with the added impetus of family scandal alongside long-term marital friction and financial instability, Lady Sarah started keeping a diary in which she reacted to her position—initially middle-aged and unhappily married, then elderly and widowed—and to events in her world. When she finally stopped writing because of ill health in September 1716, her daily entries totaled roughly 2,300 pages in seven volumes. This remarkable diary offers a specific link between the ideologies that institutions and authorities were concerned to promulgate and the outlook of the individual.


Plant Disease ◽  
2004 ◽  
Vol 88 (6) ◽  
pp. 680-680 ◽  
Author(s):  
A. Anwar ◽  
P. S. van der Zouwen ◽  
S. Ilyas ◽  
J. M. van der Wolf

In 2002, Clavibacter michiganensis subsp. michiganensis (Smith) Davis, the causal organism of bacterial canker of tomato (Lycopersicon esculentum), was isolated from two of six commercial asymptomatic tomato seed lots produced on Java in Indonesia. C. michiganensis subsp. michiganensis has not been reported in Indonesia previously. Methods based on the protocol of the International Seed Health Initiative were used to extract and identify the presence of C. michiganensis subsp. michiganensis in tomato seed. C. michiganensis subsp. michiganensis was isolated with dilution plating on the semiselective media D2ANX and mSCM. The identity of the colonies was confirmed by immunofluorescence microscopy, polymerase chain reaction (2), fatty methyl ester analysis, enzyme-linked immunosorbent assay based on monoclonal antibody 103 (1), and a pathogenicity test in which three replicate tomato plants were stem inoculated with 108 cells ml-1. Within 2 weeks, stripes on stems developed that split and exposed reddish brown cavities (stem cankers). The presence of C. michiganensis subsp. michiganensis poses a direct threat on tomato production, which is one of five economically most important vegetable crops in Indonesia. References: (1) A. Alvarez et al. Phytopathology 83:1405, 1993. (2) M. S. Santos et al. Seed Sci. Technol. 25:581, 1997.


2012 ◽  
Vol 50 (No. 11) ◽  
pp. 510-513 ◽  
Author(s):  
J. Simon

About 15% of the area of the Czech Republic is classified as territories with special status of protection, most of which is covered with forests. At present, at the time of integration of the country into the European structures, an increase in the area of such territories by approximately 20% is expected. The territories show significant variation of protection objectives, management restrictions, profound differentiation in natural conditions, structure of ownership and different levels of damage, especially that caused by anthropogenic pressure. This situation requires the formulation of long-term management strategies. The problem can be solved in the following successive steps: formulation of variants and alternatives of management strategies based on a retrospective analysis of forest development; prognosis of the forest condition development after application of the individual management strategies on the basis of growth and development simulations; addition of technological and economical bases; selection of optimal variants and alternatives from the viewpoint of the fulfilment of the owner’s management goals, in accordance with the principles of forest policy and from the viewpoint of the fulfilment of the protection objective formulated for a specific territory with special status of protection. A set of methods for following the above-mentioned steps is specified in the presented contribution.


1996 ◽  
Vol 39 (1) ◽  
Author(s):  
A. Meloni ◽  
P. Palangio ◽  
M. Marchetti ◽  
E. Teisseyre ◽  
J. Marianiuk ◽  
...  

A scientific collaboration between the Warsaw Academy of Science, (Poland) and the National Institute of Geophysics (Italy), gave rise to the installation of few stations for the long term measurement of magnetotelluric fields in central Italy. The selection of investigation sites was determined by the individual seismic interest of each location. The project began in the summer of 1991, with the installation of 2 magnetotelluric stations in the province of Isernia, (Collemeluccio and Montedimezzo). In 1992, 2 more stations became operative, one in the province of Rieti, (Fassinoro), the other in the province of L'Aquila, (S. Vittoria). For the purpose of this project, the magnetic observatory in L'Aquila was also equipped with electric lines, for the measurement of the telluric field. The aim of the analysis here presented, is to show that is possible to follow the temporal evolution of magnetotelluric characteristic parameters. At Collemeluccio this evolution was compared with the seismic released energy for events recorded within the study area.


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