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The changing of sowing gravities of different varieties of wheat under conditions of conservation Full text
2006
Насіковський, В. А
The changing of sowing gravities of different varieties of wheat under conditions of conservation Full text
2006
Насіковський, В. А
The influence of different conditions of conservation to sprout and germinating power of seed varieties of wheat under conditions of conservation are expounded in the article.
Show more [+] Less [-]Unambiguous identification of fungi: where do we stand and how accurate and precise is fungal DNA barcoding? Full text
2020
Robert Lücking | M. Catherine Aime | Barbara Robbertse | Andrew N. Miller | Hiran A. Ariyawansa | Takayuki Aoki | Gianluigi Cardinali | Pedro W. Crous | Irina S. Druzhinina | David M. Geiser | David L. Hawksworth | Kevin D. Hyde | Laszlo Irinyi | Rajesh Jeewon | Peter R. Johnston | Paul M. Kirk | Elaine Malosso | Tom W. May | Wieland Meyer | Maarja Öpik | Vincent Robert | Marc Stadler | Marco Thines | Duong Vu | Andrey M. Yurkov | Ning Zhang | Conrad L. Schoch
ABSTRACT True fungi (Fungi) and fungus-like organisms (e.g. Mycetozoa, Oomycota) constitute the second largest group of organisms based on global richness estimates, with around 3 million predicted species. Compared to plants and animals, fungi have simple body plans with often morphologically and ecologically obscure structures. This poses challenges for accurate and precise identifications. Here we provide a conceptual framework for the identification of fungi, encouraging the approach of integrative (polyphasic) taxonomy for species delimitation, i.e. the combination of genealogy (phylogeny), phenotype (including autecology), and reproductive biology (when feasible). This allows objective evaluation of diagnostic characters, either phenotypic or molecular or both. Verification of identifications is crucial but often neglected. Because of clade-specific evolutionary histories, there is currently no single tool for the identification of fungi, although DNA barcoding using the internal transcribed spacer (ITS) remains a first diagnosis, particularly in metabarcoding studies. Secondary DNA barcodes are increasingly implemented for groups where ITS does not provide sufficient precision. Issues of pairwise sequence similarity-based identifications and OTU clustering are discussed, and multiple sequence alignment-based phylogenetic approaches with subsequent verification are recommended as more accurate alternatives. In metabarcoding approaches, the trade-off between speed and accuracy and precision of molecular identifications must be carefully considered. Intragenomic variation of the ITS and other barcoding markers should be properly documented, as phylotype diversity is not necessarily a proxy of species richness. Important strategies to improve molecular identification of fungi are: (1) broadly document intraspecific and intragenomic variation of barcoding markers; (2) substantially expand sequence repositories, focusing on undersampled clades and missing taxa; (3) improve curation of sequence labels in primary repositories and substantially increase the number of sequences based on verified material; (4) link sequence data to digital information of voucher specimens including imagery. In parallel, technological improvements to genome sequencing offer promising alternatives to DNA barcoding in the future. Despite the prevalence of DNA-based fungal taxonomy, phenotype-based approaches remain an important strategy to catalog the global diversity of fungi and establish initial species hypotheses.
Show more [+] Less [-]Creating winter wheat (Triticum aestivum L) initial material of high grain quality value for North Forest-Steppe conditions Full text
2006
Мороз, Г. О
Creating winter wheat (Triticum aestivum L) initial material of high grain quality value for North Forest-Steppe conditions Full text
2006
Мороз, Г. О
Based on study of 42 collection entries, results of creating winter wheat initial material of high grain quality value and its relationship with agronomic traits are presented.
Show more [+] Less [-]Creating winter wheat (Triticum aestivum L) initial material of high grain quality value for North Forest-Steppe conditions Full text
2006
Г. О. Мороз
Based on study of 42 collection entries, results of creating winter wheat initial material of high grain quality value and its relationship with agronomic traits are presented.
Show more [+] Less [-]Sowing properties of summer rape seeds depending on fertilizers and terms of harvesting Full text
2006
Юник, А. В | Новицька, Н. В | Мокрієнко, В. А
Sowing properties of summer rape seeds depending on fertilizers and terms of harvesting Full text
2006
Юник, А. В | Новицька, Н. В | Мокрієнко, В. А
In the article the results of research of sowing properties - emergence rate and laboratory germinating capacity seeds summer rape are resulted depending on variants of fertilizers and terms of harvesting.
Show more [+] Less [-]Sowing properties of summer rape seeds depending on fertilizers and terms of harvesting Full text
2006
А. В. Юник | Н. В. Новицька | В. А. Мокрієнко
In the article the results of research of sowing properties - emergence rate and laboratory germinating capacity seeds summer rape are resulted depending on variants of fertilizers and terms of harvesting.
Show more [+] Less [-]Biological and morphological properties of myrobalan plum as the basis for the identification of cultivars and expertizing the concerning differentiation, homogeneity and stability Full text
2006
Павлюк, В. В | Павлюк, Н. В
Biological and morphological properties of myrobalan plum as the basis for the identification of cultivars and expertizing the concerning differentiation, homogeneity and stability Full text
2006
Павлюк, В. В | Павлюк, Н. В
The authors presents the results of the collectional, primary and promotional investigation of the myrobalan plum large-fruited introduced and "tome cultivars under the conditions of the Ukraine's Southern Polissya and Northern Lisosteppe. On the background of the best standard cv <ubans’ka kometa a number of promise cultivars with both red and yellow fruits has been singled out to be introduced in the farm orchards of differ- ant forms of property. These cultivars are characterized with different Opening terms and purpose of fruits use.
Show more [+] Less [-]Biological and morphological properties of myrobalan plum as the basis for the identification of cultivars and expertizing the concerning differentiation, homogeneity and stability Full text
2006
В. В. Павлюк | Н. В. Павлюк
The authors presents the results of the collectional, primary and promotional investigation of the myrobalan plum large-fruited introduced and "tome cultivars under the conditions of the Ukraine's Southern Polissya and Northern Lisosteppe. On the background of the best standard cv <ubans’ka kometa a number of promise cultivars with both red and yellow fruits has been singled out to be introduced in the farm orchards of differ- ant forms of property. These cultivars are characterized with different Opening terms and purpose of fruits use.
Show more [+] Less [-]Agro-ecological principals of forming of agricultural crops intensive agrocoenosis in different climate zones of Ukraine Full text
2006
Гірко, В. С | Гірко, О. В
Agro-ecological principals of forming of agricultural crops intensive agrocoenosis in different climate zones of Ukraine Full text
2006
Гірко, В. С | Гірко, О. В
Regarding to the unstable climate and diversity of the Ukrainian soils, approved by the authors Conception of adaptive planting systems foundation owing to the implementation of local, complex, integrated, selective-agro-technical programs, theoretical background and construction princi-pals of which described in the study, are grounded, for different ecological zones of Ukraine.
Show more [+] Less [-]Agro-ecological principals of forming of agricultural crops intensive agrocoenosis in different climate zones of Ukraine. Full text
2006
В. С. Гірко | О. В. Гірко
Regarding to the unstable climate and diversity of the Ukrainian soils, approved by the authors Conception of adaptive planting systems foundation owing to the implementation of local, complex, integrated, selective-agro-technical programs, theoretical background and construction princi-pals of which described in the study, are grounded, for different ecological zones of Ukraine.
Show more [+] Less [-]Induction of vegetable varieties protective mechanisms Full text
2006
Ковбасенко, В. М | Рябенька, Л. А | Корецький, А. П | Корецька, О. О | Оніщенко, О. І
Induction of vegetable varieties protective mechanisms Full text
2006
Ковбасенко, В. М | Рябенька, Л. А | Корецький, А. П | Корецька, О. О | Оніщенко, О. І
Ability of poly-unsaturated fatty Arachidonic Acid and Micosan bio-fun-gicide with 3% h.c.s.(alkali extract of alkilofraiic glucans mushroom - Fomes fomentarius) to oppress the pathogens' parasitism on the vegetable crops is experimentally proved. There is also studied biological efficacy of fungicides and their tank blends on the cucumber crop.
Show more [+] Less [-]Induction of vegetable varieties protective mechanisms Full text
2006
В. М. Ковбасенко | Л. А. Рябенька | А. П. Корецький | О. О. Корецька | О. І. Оніщенко
Ability of poly-unsaturated fatty Arachidonic Acid and Micosan bio-fun-gicide with 3% h.c.s.(alkali extract of alkilofraiic glucans mushroom - Fomes fomentarius) to oppress the pathogens' parasitism on the vegetable crops is experimentally proved. There is also studied biological efficacy of fungicides and their tank blends on the cucumber crop.
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