Formation and composition of trait melon (Сucumis melo L.) collection

Genetičnì resursi roslin (Plant Genetic Resources) ◽

10.36814/pgr.2021.28.10 ◽

2021 ◽

pp. 98-108

Author(s):

OH Kholodniak ◽

OO Kholodniak ◽

SL Pavlova

Keyword(s):

Plant Breeding ◽

Land Reclamation ◽

Abiotic Factors ◽

Phenotypic Variability ◽

Starting Material ◽

Biological Traits ◽

Economic Traits ◽

Economically Valuable Traits ◽

History Of ◽

Water Problems

The aim of the article was to present the results on the formation of a trait collection of melons at the Southern State Agricultural Experimental Station of the Institute of Water Problems and Land Reclamation of NAAS of Ukraine, which contains 57 specimens (one botanical species, one subspecies and three varieties) from 11 countries. Results and Discussion. The collection includes specimens with 35 economically valuable traits, which can be useful for the lecture course Plant Breeding and as starting material for breeding research institutions. Each specimen was comprehensively studied and evaluated for performance and resistance to biotic and abiotic factors and described in terms of morphological features for three years. In addition to the species diversity, the trait collections included specimens with different levels of expression of valuable economic and biological traits. The collection also included specimens selected by phenotypic variability of individual traits or their combinations. The results of multi-year work with the melon collection specimens allowed us to identify sources of valuable economic traits with high levels of their expression, which are of interest for the lecture course Plant Breeding. Conclusion. The history of the melon breeding in Ukraine is shown; breeding varieties, which are most widespread or were a significant breeding achievement in solving certain problems, are presented. The collection can be used in plant breeding and as starting material in research and educational institutions.

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Formation and composition of training flax collection

Genetičnì resursi roslin (Plant Genetic Resources) ◽

10.36814/pgr.2020.26.06 ◽

2020 ◽

pp. 61-71

Author(s):

L.M. Kryvosheieva ◽

V.I. Chuchvaha ◽

N.M. Kandyba

Keyword(s):

Plant Breeding ◽

Gene Pool ◽

Phenotypic Variability ◽

Plant Genetic Resources ◽

Field Measurements ◽

Educational Process ◽

Educational Institutions ◽

Economic Traits ◽

Wide Range ◽

History Of

Aim. Based on the results of multi-year research into the flax gene pool, to form a flax training collection to provide breeding scientific organizations and educational institutions with collection samples as well as with information about the bast crop gene pool. Results and Discussion. The studies were conducted in the crop rotation fields for breeding and seed production of the Institute of Bast Crops of the NAAS (Hlukhiv, Sumska Oblast) in 1992-2018. The field measurements and laboratory analyses were carried out in accordance with conventional methods of field and laboratory studies of collection flax samples.The article presents the results on the formation of a training collection of flax at the Institute of Bast Crops of the NAAS, which has 117 accessions (11 botanical species and three varieties) from 22 countries. In addition to species diversity, the collection includes accessions with different levels of expression of valuable economic and biological characteristics. It also includes accessions selected by phenotypic variability of individual characters or their combinations. The multi-year research into the flax collection accessions resulted in identification of sources of highly-expressed valuable economic traits, which are of interest for the plant breeding course. The history of flax breeding in Ukraine is shown, where breeding varieties that are most widespread or were significant breeding achievements in solving certain problems, are presented. The collection can be used as a visual aid for the plant breeding course in educational programs; in addition, it can provide starting material for scientific and educational institutions. The collection is registered with the National Center for Plant Genetic Resources of Ukraine (certificate No. 00273 dated 04/11/2019). Conclusions. The studies of accessions from the national flax collection allowed us to build up a training collection and register it with the NCPGRU. The collection represents a wide range of biological and economic features of the gene pool of this crop. The collection can be used in the educational process of educational agricultural and biological institutions. The multi-year research into the national flax collection resulted in identification of sources of highly-expressed valuable economic traits, which are of interest to the plant breeding course. The history of flax breeding in Ukraine got covered, and breeding varieties that are most widespread or were significant breeding achievements in solving certain problems are presented.

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Towards the digital land reclamation

Melioration and Water Management ◽

10.32962/0235-2524-2019-4-5-9 ◽

2020 ◽

pp. 5-9

Author(s):

Sergey Vasil'ev ◽

Vyacheslav Schedrin ◽

Aleksandra Slabunova ◽

Vladimir Slabunov

Keyword(s):

Retrospective Analysis ◽

Land Reclamation ◽

Practical Experience ◽

Maximum Effect ◽

Optimal Management ◽

Scientific Potential ◽

History Of ◽

Definition Of ◽

Further Development ◽

Full Cooperation

The aim of the research is a retrospective analysis of the history and stages of development of digital land reclamation in Russia, the definition of «Digital land reclamation» and trends in its further development. In the framework of the retrospective analysis the main stages of melioration formation are determined. To achieve the maximum effect of the «digital reclamation» requires full cooperation of practical experience and scientific potential accumulated throughout the history of the reclamation complex, and the latest achievements of science and technology, which is currently possible only through the full digitalization of reclamation activities. The introduction of «digital reclamation» will achieve greater potential and effect in the modernization of the reclamation industry in the «hightech industry», through the use of innovative developments and optimal management decisions.

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A trait collection of spring groat barley

Genetičnì resursi roslin (Plant Genetic Resources) ◽

10.36814/pgr.2018.23.08 ◽

2018 ◽

pp. 85-96

Author(s):

I.A. Petukhova ◽

V.K. Riabchun ◽

V.A. Muzapharova ◽

O.I. Padalka ◽

T.A. Sheliakina ◽

...

Keyword(s):

High Performance ◽

Spring Barley ◽

Vegetation Period ◽

Grain Weight ◽

Starting Material ◽

Economic Traits ◽

The Czech Republic ◽

Science And Education ◽

New Varieties ◽

1000 Grain Weight

The goal of our research was to form a collection of groats barley, to search, to select and to evaluate starting material of spring barley for a set of valuable economic traits, technological properties and culinary qualities of barley groats. Results and Discussion. Basing on to the results of assessments, we identified selected 55 spring barley accessions, which were characterized by 17 traits and 75 expression levels. The collection includes accessions from 11 countries; the largest number of accessions (59) are from Ukraine; 39 – from Russia; 10 - from Belarus; 10 - from Germany; 6 - from France; 5 - from Kazakhstan; 4 - from Canada; 3 - from the Czech Republic; 2 – from Great Britain; 1 accesson is from Serbia; and 1 - from Austria. Accessions combining high levels of expression of different traits are the most valuable. They include the following accessions: Doridnyi, Vodohrai, Sviatomykhailivskyi, Svarozhych, Soka, Іlot (UKR). Naked accessions include: Akhilles (UKR), Mayskiy, Oskar, Golozyornyy 1, Omskiy Golozyornyy 1 (RUS), CDC Alamo, CDC Candle (CAN). These varieties can be starting material for creation of new modern high-performance spring groats barley varieties. Ten valuable accessions registered with the NCPGRU (Sovіra, Doridnyi, Soka, Vodohrai, Partner, Yukatan, Avhii, Svarozhych, Baskak, and Virtuoz) were included in the trait groats collection. Conclusions. Basing on the results of multiyear studies, we formed the trait collection of spring groats barley comprising 140 accessions from 11 countries. The collection includes 55 reference accessions that cover 17 traits (plant height, vegetation period, ear length, grain weight per ear, 1000-grain weight, grain shape, grain evenness, vitreousness, culinary qualities of barley groats, etc.) characterized by 75 levels of their expression. The collection is of considerable value for science and education. The accessions selected allow improving the efficiency of breeding to create new varieties with high technological and culinary properties as well as with a set of valuable economic characteristics.

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Life history of tundra-dwelling wolf spiders (Araneae: Lycosidae) from the Yukon Territory, Canada

Canadian Journal of Zoology ◽

10.1139/z2012-038 ◽

2012 ◽

Vol 90 (6) ◽

pp. 714-721 ◽

Cited By ~ 14

Author(s):

J.J. Bowden ◽

C.M. Buddle

Keyword(s):

Reproductive Effort ◽

Abiotic Factors ◽

Wolf Spider ◽

Local Variation ◽

Yukon Territory ◽

The Arctic ◽

Wolf Spiders ◽

Female Body Size ◽

Trade Offs ◽

History Of

We studied populations of three tundra-dwelling wolf spider (Lycosidae) species to determine reproductive trait relationships and developmental timing in the Arctic. We collected 451 Pardosa lapponica (Thorell, 1872), 176 Pardosa sodalis Holm, 1970, and 117 Pardosa moesta Banks, 1892 during summer 2008. We used log-likelihood ratio tests and multiple linear regressions to determine the best predictors of fecundity and relative reproductive effort. Female body size best explained the variation in fecundity and body condition was the best predictor for relative reproductive effort. We tested for a trade-off between the allocation of resources to individual eggs and the number of eggs produced (fecundity) within each species using linear regression. There was variation in detectable egg size and number trade-offs among sites and these may be related to local variation in resource allocation linked to density-related biotic or abiotic factors. These findings contribute to knowledge about the fitness of arctic wolf spiders in the region of study and are particularly relevant in light of the effects that climate changes are predicted to have on the arctic fauna.

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Bestandesdynamik zentralalpiner Waldföhrenwälder aufgezeigt anhand dendroökologischer Fallstudien aus dem Wallis, Schweiz | Stand dynamics of central alpine Scots pine using dendroecological case studies from Valais, Switzerland

Schweizerische Zeitschrift fur Forstwesen ◽

10.3188/szf.2004.0178 ◽

2004 ◽

Vol 155 (6) ◽

pp. 178-190 ◽

Cited By ~ 11

Author(s):

Andreas Rigling ◽

Pascale Weber ◽

Paolo Cherubini ◽

Matthias Dobbertin

Keyword(s):

Case Studies ◽

Scots Pine ◽

Forest Dynamics ◽

Abiotic Factors ◽

Pine Forests ◽

Natural Disturbances ◽

Development History ◽

History Of ◽

Scots Pine Forests ◽

The Impact

The aim of this paper is to demonstrate the use of dendroecological methods to analyse the various processes involved in forest dynamics. Using dendroecological case studies of the Scots pine forests of Valais (Switzerland) as an example we discuss the most relevant processes of forest dynamics and their consequences on stand structures and mortality rates. We focus on the development history of these Scots pine forests under human impact and on the impact of biotic and abiotic factors on tree growth. Most of today's extended Scots pine forests (< 1500 m a.s.l.)must be interpreted as part of an ongoing natural succession under heavy human influence. In time, without management or natural disturbances, most of these pine forests will develop into broadleaved forests (lower altitudes) or spruce-firforests(higher altitudes).

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High biogeographic and latitudinal variability in gastropod drilling predation on molluscs along the eastern Indian coast: Implications on the history of fossil record of drillholes

PLoS ONE ◽

10.1371/journal.pone.0256685 ◽

2021 ◽

Vol 16 (8) ◽

pp. e0256685

Author(s):

Subhronil Mondal ◽

Hindolita Chakraborty ◽

Sandip Saha ◽

Sahana Dey ◽

Deepjay Sarkar

Keyword(s):

Spatial Variability ◽

Large Scale ◽

Abiotic Factors ◽

Eastern Coast ◽

Detailed Knowledge ◽

Biogeographic Pattern ◽

Drilling Predation ◽

History Of ◽

Latitudinal Patterns ◽

Consecutive Time

Studies on the large-scale latitudinal patterns of gastropod drilling predation reveal that predation pressure may decrease or increase with increasing latitude, or even show no trend, questioning the generality of any large-scale latitudinal or biogeographic pattern. Here, we analyze the nature of spatio-environmental and latitudinal variation in gastropod drilling along the Indian eastern coast by using 76 samples collected from 39 locations, covering ~2500 km, incorporating several ecoregions, and ~15° latitudinal extents. We find no environmental or latitudinal gradient. In fact, drilling intensity varies highly within the same latitudinal bin, or oceanic sub-basins, or even the same ecoregions. Moreover, different ecoregions with their distinctive biotic and abiotic environmental variables show similar predation intensities. However, one pattern is prevalent: some small infaunal prey taxa, living in the sandy-muddy substrate—which are preferred by the naticid gastropods—are always attacked more frequently over others, indicating taxon and size selectivity by the predators. The result suggests that the biotic and abiotic factors, known to influence drilling predation, determine only the local predation pattern. In the present case, the nature of substrate and prey composition determines the local predation intensity: soft substrate habitats host dominantly small, infaunal prey. Since the degree of spatial variability in drilling intensity within any time bin can be extremely high, sometimes greater than the variability across consecutive time bins, temporal patterns in drilling predation can never be interpreted without having detailed knowledge of the nature of this spatial variability within a time bin.

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Assessment of Agricultural Valuable Indicators of Pure Lines of Tomato

Bulletin of Science and Practice ◽

10.33619/2414-2948/70/13 ◽

2021 ◽

Vol 7 (9) ◽

pp. 125-129

Author(s):

M. Adigozalov

Keyword(s):

Abiotic Factors ◽

Fruit Weight ◽

Biological Characteristics ◽

Starting Material ◽

Individual Selection ◽

Ripening Time ◽

Characteristic Features ◽

Pure Lines ◽

Selection Of ◽

Research Institute

The article is devoted to the study of several tomatoes introduced and created in Vegetable Growing Research Institute (Baku) and pure lines derived from them. Biological and economically-valuable characteristics of varieties and obtained pure are given. It should be noted that in Azerbaijan, 25 different varieties of tomatoes are introduced and localized. These varieties have been cultivated on farms for years and have lost their farm valuable qualities due to various biotic an abiotic factors. Although tomato is a self-pollinating plant, special selection and seeding measures are required for reproduction. Therefore, in order to restore the original characteristics of regionalized tomato varieties, it is necessary to re-study their biological characteristics and economically-valuable qualities. Our research was carried out in the direction of individual selection and acquisition of pure lines of typical plants with characteristic features and characteristics. In the course of the work, 2–3 best pure lines were separated from each variety. These lines differ from the parent varieties in terms of ripening time, fruit weight and productivity. Thus, as a result of experiments, it was determined that they give the product in 10–15 days, the characteristics of coexistence are also high, forming uniformity in shape, size and color. The obtained lines are promising, will be included in the selection of seed work as a valuable starting material, and will also be increased.

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