scholarly journals Scientific basis of appropriate sowing of wheat varieties on irrigated land of Uzbekistan

2021 ◽  
Vol 939 (1) ◽  
pp. 012079
Author(s):  
M Makhammatova ◽  
M Ashurov ◽  
S Tursoatov ◽  
A Fayzullaev

Abstract In the irrigated lands of Tashkent province, regionalized wheat varieties are usually planted at a rate of 250 kg/ha, but it would be possible to increase yields and grain quality if a scientifically based optimal sowing rate was recommended for each variety. Another opportunity to increase wheat yields in the region is the development of seed production. Numerous studies and practices have shown that it is possible to increase wheat yields by 20-25 by sowing wheat seeds. In this regard, the most pressing issue is to increase the level of seed germination. In this article, it is important to study the scientifically based sowing norms, physiological maturation of seeds, and their impact on yield and grain quality in order to take full advantage of the potential of regionalized varieties of wheat in irrigated lands. The determination of the most optimal planting norms, taking into account their biological properties, is based on research.

Author(s):  
Г. П. Жемела ◽  
А. О. Курочка

Розглянуто вплив попередників на якість зернарізних за біологічними властивостями сортів пше-ниці м,якої озимої. Найвищі показники вмісту білкав зерні були в сортів Землячка й Володарка. Вста-новлено, що найкращими попередниками для пше-ниці озимої є горох та однорічні бобові трави.Кращі показники якості зерна отримані в сортівЗемлячка й Володарка. Вміст клейковини в зернінаведених вище сортів відповідає рівневі сильнихпшениць. Якість клейковини в зерні відповідаєдругій і третій групам. The predecessors’ influence upon the grain quality of differentsoft winter wheat varieties according to biological properties isexamined. The varieties Zemlyachka and Volodarka had highindices of protein content. It is established that pea and annuallegume glass were the best predecessors. The varietiesZemlyachka and Volodarka had the best indices of grainquality.


2021 ◽  
pp. 8-12
Author(s):  
T. Rozhkova

Goal. To establish the influence of the genotype of winter wheat on the presence of Alternaria sp. in the seeds of winter wheat under different growing conditions, for different periods of time, among varieties from different original institutions of Ukrainian and foreign selection. Methods. Field — cultivation of wheat varieties in the Forest-Steppe of Ukraine; organizational — collection of seed samples; laboratory — analysis of the mycoflora of winter wheat seeds by biological method on the PGA, determination of Alternaria fungi on the environment of the PCA; analytical and mathematical — analysis of the obtained results and their statistical comparison. Results. The study of the influence of the variety on the isolation of Alternaria fungi for their cultivation in different years for the period from 2011 to 2020 and in different growing conditions proved the existence of a significant difference in their total amount and number of individual species, especially dominant. Differences were noted in the presence of Alternaria sp. inside the seeds grown in two climatic zones (Polissya and Forest-Steppe), on farms and in experimental fields. Three-year observation of the species of these fungi on two varieties from one originator showed their different isolation: both the presence of certain representatives and the number of their isolation. Analysis of 9 and 17 genotypes of wheat of Ukrainian and foreign selection during 2019 and 2020 also showed a different picture of the population of Alternaria fungi. Conclusions. Significant influence of genotype on the selection of Alternaria sp. was installed. Based on several years of studying the population of winter wheat seeds with Alternaria fungi, genotypes with a smaller presence were identified: in 2013—2015 — Gordovyta variety, in 2019—2020 — Emil, Pylypivka. It should be borne in mind that fewer alternative fungi reduce the presence of their mycotoxins, but increase the number of other fungi in the mycoflora, sometimes more dangerous.


Author(s):  
M. A. Jabbar ◽  
N. Muhammad ◽  
M. M. Rahaman ◽  
M. G. Haque

Wheat seed samples were collected from ten unions of sadar upazilla of Thakurgaon district in wheat growing season of 2011. Seeds were tested by blotter method at Seed Pathology Center (SPC), Bangladesh Agricultural University, Mymensingh during the months April to November 2011 for recording and identifying the seed-borne fungi associated with wheat seeds. The health status of 20 seed samples were determined whereas five genera fungi were identified from a total of six fungus. The fungi were Bipolaris sorokiniana, Alternaria tenuis, Fusarium spp, Penicillium sp, Aspergillus flavus and Aspergillus niger. Prevalence of the total as well as the individual seed-borne fungal infections that were recorded varied significantly with respect to wheat varieties and sources of seed collection. Seed samples collected from Jagonathpur and Gorea unions of sadar upazilla showed highest percentage of seed-borne infection compared to the samples collection from other unions for both varieties. The seed-borne fungal infection in Hazar-8 and Satabdi collected from other unions showed lowest percentage of seed-borne fungal infection than that of Jagonathpur and Gorea unions. Seed germination also varied significantly depending on the varieties and the seed sources and a positive correlation between seed germination and seed-borne fungal infections were observed. Three seed treating agents viz., neem leaf extract 1:2, hot water and Provax were evaluated for controlling seed-borne fungi associated with wheat seeds. Among the seed treating agents, Provax was found superior to reduce the seed-borne infection of wheat. The results also showed that neem leaf extract at 1:2 dilutions was observed to be the most effective in reducing seed-borne fungi with highest percentage of germination followed by hot water treatment.


Author(s):  
L.M. Anikina ◽  
◽  
O.R. Udalova ◽  
G.G. Panova ◽  
◽  
...  

The influence of pre-sowing seed treatment of spring wheat varieties ‘Ester’ and ‘Leningradskaya 6’ with silicon-containing chelate microfertilizer (SCM) on the seedlings’ growth and development was studied. Varietal differences of spring wheat in response to pre-sowing seed treatment with SCM were revealed. For both wheat varieties, this fertilizer stimulates the germination energy and germination itself. Thus, after SCM treatment at a concentration of 5 mg/l, there was a significant increase in ‘Ester’ seed germination energy (by 19 %) compared to control, as well as by 20–27 % in ‘Leningradskaya 6’ variety. More pronounced stimulating effect of SCM was observed for ‘Ester’ at a concentration of 1.0 mg/l; the same for ‘Leningradskaya 6’ – at a concentration of 3.0 and 5.0 mg/l.


2020 ◽  
pp. 23-33
Author(s):  
Elena A. Zaeva-Burdonskaya ◽  
Yuri V. Nazarov

This article addresses one of the most actively developing types of design activities – light design. The article comprises quotes of the leading Russian and foreign light design specialists published over the previous five years, as well as the authors’ own conclusions. The thoughts quoted in the article are sometimes opposite to each other and reflect the wide spectrum of professional practice. They reflect the initial opinions of analysts and experts which are often diverging. All of the specialists point at the interdisciplinary nature of the new profession, which imposes additional load on a designer overloaded enough already by the scope and speed of the problems being solved nowadays. The discussion of the new profession of light designer initiated on the pages of professional publications is especially important in view of the development of professional standards and standards of design and architectural education, as well as creation of new educational programmes based on various approaches to the subject in technical and humanitarian institutions. The goal of this article is to introduce light design into the field of fully legitimate sections of design culture, to define the authentic scientific basis of the new creative profession, to initiate a foundation for self-determination of the new synthetic area, which materially affects the state of the profession as a whole and the life standards of a wide variety of consumers. In order to reach the set goal, a comparative and analytical method of study was selected, which allows studying the problem to a large extent and from all angles and finding the ways of overcoming the challenges emerging in the area of the new activity.


2019 ◽  
Vol 10 (5) ◽  
pp. 473-478
Author(s):  
Ahmad Gashamoglu ◽  

The Article briefly discusses the need for generation of the Science of Ahangyol, and this science’s scientific basis, object and subject, category system, scientific research methods and application options. Ahangyol is a universal science and may be useful in any sphere. It may assist in problem solving in peacemaking process and in many areas such as ecology, economics, politics, culture, management and etc. This science stipulates that any activity and any decision made in the life may only and solely be successful when they comply with harmony principles more, which are the principles of existence and activity of the world. A right strategic approach of the Eastern Philosophy and the Middle Age Islamic Philosophy and scientific thought has an important potential. This strategic approach creates opportunities to also consider irrational factors in addition to rational ones comprehensively in scientific researches. The modern scientific thought contributes to implementation of these opportunities. Ahangyol is a science of determination of ways to achieve harmony in any sphere and of creation of special methods to make progress in these ways through assistance of the modern science. Methods of the System Theory, Mathematics, IT, Astronomy, Physics, Biology, Sociology, Statistics and etc. are more extensively applied. Information is given on some of these methods. Moreover, the Science of Ahangyol, which is a new philosophical worldview and a new paradigm contributes to clarification of metaphysic views considerably and discovery of the scientific potential of religious books.


1970 ◽  
Vol 11 (1) ◽  
Author(s):  
A. Bista ◽  
G. B. Khattri ◽  
B. D. Acharya ◽  
S. C. Srivastava

To find out the ability of Orobanche seeds to germinate immediately after seed set, seeds were germinated periodically at an interval of three months for one year in GR24. Some Orobanche seeds were capable of germination immediately after seed set but most required about nine months as after ripening or incubation period to be able to germinate. The phenomenon of after ripening in Orobanche seeds could be taken as an ecological measure to dormant over following unfavorable wet summer season. The growth hormone studies on Orobanche seed germination have shown that GA3 at a concentration of 100 ppm substantially enhanced seed germination when applied during pre-conditioning period. NAA showed some stimulatory effect at 0.5 - 1.0 ppm when applied during post-conditioning period but the hormone if applied during pre-conditioning period inhibited the germination. Kinetin failed to stimulate the germination at all the concentrations tested. Key words: Germination, root-parasite, hormone. Ecoprint Vol.11(1) 2004.


2020 ◽  
Vol 2 (1) ◽  
pp. 115-130
Author(s):  
R. R. Palekha ◽  

Introduction. Right understanding is the most live, interesting and, at the same time, the uncertain and changeable area of researches which takes the central place as in the general theory of the right, and gains the increasing value in industry jurisprudence that is connected with its considerable teoretiko-methodological and applied potential which is shown in spheres of lawmaking and law-enforcement activity. Thus, right understanding represents research tools of the subject of knowledge which allow to study all range legal and, the based on them, state phenomena for the purpose of obtaining reliable knowledge of state and legal reality. In this regard integrative approach in right understanding which has rich history of the formation and development is of special interest, allows to perceive the right as integrally complete phenomenon, as much as possible retrieves its regulatory abilities and, provides achievement of criteria of scientific research: comprehensiveness, objectivity, historicism. Materials and Methods. In article an attempt of the analysis of integrative approach in right understanding from a position of history of origin of his ideas and assessment of the current state is made. A result of studying of scientific literature, generalization and comparison of the different points of view fat formulation of author’s determination of category “right understanding” and submission of the evidence-based integrative theory of right understanding which as much as possible conforms to requirements of time and has essential regulatory and guarding potential. Results. In article the category right understanding is comprehensively considered, different integrative theories of right understanding from a position of their origin and development are submitted, the value of modern integrative approach in right understanding is shown, perspectives of its further development are evaluated. Discussion and Conclusion. The author comes to the conclusion about the theoretical and methodological consistency and inevitability of the integrative approach in law understanding, which acts as a scientifically grounded type of legal thinking capable of comprehending the law on a truly scientific basis.


Author(s):  
Shixing Zhu ◽  
Jiayuan Zhang ◽  
Zhihua Lv ◽  
Mingming Yu

Background: Apigenin, a natural plant flavone, has been shown to possess a variety of biological properties. Objective: In this report, a highly selective and sensitive LC-MS/MS method was developed and validated for the determination of apigenin in rat plasma. Methods: Analysts were separated on the HSS T3 column (1.8 μm 2.1×100 mm) using acetonitrile and 0.1% formic acid in 2 mM ammonium acetate buffer at a supply rate of 0.200 mL/min as eluent in gradient model. Results: Plasma samples were treated by protein precipitation using acetonitrile for the recovery ranging from 86.5% to 90.1% for apigenin. The calibration curves followed linearity in the concentration range of 0.50-500 ng/mL. The inter-day and intra-day precisions at different QC levels within 13.1% and the accuracies ranged from -10.6% to 8.6%. Conclusion: The assay has been successfully applied to the pharmacokinetic study of apigenin in rats.


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