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Wyświetlanie 1-3 z 3
Tytuł:
Vegetation period of genetic resources of flax (Linum usitatissimum L.)
Autorzy:
Silska, G.
Powiązania:
https://bibliotekanauki.pl/articles/2049068.pdf
Data publikacji:
2020
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
Linum usitatissimum
flax
vegetation period
flowering
maturity
genetic resource
biological feature
zasoby genetyczne
len
Linum usitatissimum L.
cechy biologiczne
okres wegetacji
kolekcja
czas rozpoczęcia kwitnienia
Opis:
Introduction: Institute of Natural Fibres and Medicinal Plants (INF&MP) is involved in gathering and evaluation of genetic resources of flax (Linum usitatissimum L.), hemp (Cannabis sativa L.) and medicinal plants, because Poland has signed the Convention on Biological Diversity. Field trials were carried out in 1990–2001 in the Experimental Station in Wojciechów located in Opolskie region. The research material was accessions of genetic resources from the collection of flax, stored at the Institute of Plant Breeding and Acclimatization Institute in Radzików near Warsaw. Objective: The aim of the publication was to evaluate the following biological features of flax: time of beginning of flowering and vegetation period to yellow maturity. Methods: The characteristics data for flax accessions are presented according to the methodology of development of the International Flax Database. Each flax accessions from the world collection of flax genetic resources received one of the following assessments of two vegetation periods: very short, short, medium, long and very long. Descriptors of biological features of flax were used, presented in “List of flax descriptors (L. usitatissimum L.)” edited by Janka Nozkova, published in 2011. These descriptors are used to develop the International Flax Database, which in turn helps in the rapid evaluation of the L. usitatissimum genetic resource collection. Carrying out a detailed characterization of biological features of L. usitatissimum accessions is very helpful for breeders in selecting genetic material for breeding new varieties of flax. Results: The following results were obtained from the time of the beginning of flowering and the vegetation period to yellow maturity. Time of beginning of flowering was the following: very short – 0 accessions, short – 97 accessions, medium – 20 accessions, long – 2 accessions and very long – 0 accessions of flax. The genotypes tested were characterized by the following results in terms of vegetation period from sowing to yellow maturity: very short – 0, short – 37, medium – 62, long – 0 and very long – 0 accessions of flax. Conclusions: Time of beginning of flowering and the vegetation period to yellow maturity shall be revalorised to the International Flax Database for those L. usitatissimum accessions that did not receive the same assessment of the biological features tested in the two or three years of the study.
Źródło:
Herba Polonica; 2020, 66, 3; 36-47
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Passport data and valorisation data of 33 accessions from the collection of genetic resources of the species Linum usitatissimum L.
Autorzy:
Silska, G.
Powiązania:
https://bibliotekanauki.pl/articles/2049207.pdf
Data publikacji:
2020
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
Linum usitatissimum
flax
genetic resource
vegetation period
morphological trait
biological feature
agricultural trait
growing season
zasoby genetyczne
len
Linum usitatissimum L.
cechy morfologiczne
cechy rolnicze
cechy biologiczne
Opis:
Introduction: In 2020, the Institute of Natural Fibres and Medicinal Plants (INF&MP) implemented the contract No. 7/PW 1.2 – IWNiRZ Poznań/KCRZG/2020 for the performance of a research service under the long-term programme “Creating scientific foundations for biological progress and protection of plant genetic resources as a source of innovation and support for sustainable agriculture and safety food for country”. Objective: The aim of the research was to prepare passport and valorisation data for 33 accessions of flax (Linum usitatissimum L.) sown at the INF&MP Experimental Station in Pętkowo. Methods: The field experiment was conducted on 33 samples of flax seeds, which were sown on an area of 1.6 m2. Morphological features were presented by means of numerical data and their evaluation. The agricultural characteristics (numerical values and percentage of the collective pattern) and lengths of vegetation period were also presented. The evaluation of the performed characteristics of flax accessions was presented numerically and the data were given to the International Flax Database. Results: On the basis of paper documentation, the country of origin of the accessions, the type of genotypes by origin (landrace, variety) and the date of inclusion of the accessions in the flax collection were determined. The results of the characterization of morphological trials were as follows: the total plant length of the flax plants ranged from 51.4 cm (La Estanzuella 117) to 76.5 cm (WUKR 06-417) According to the methodology of the International Flax Database, the total plant length were short (28 accessions), medium short (3) and medium (1). Technical length was usually short (28 accessions) and medium short (4 accessions). Stem thickness for all accessions was medium: 1.6–2.5 mm. The length of the panicle was long only for the Opal variety, for 25 accessions - medium and short for 6 accessions. A number of bolls from panicle was: 9.1–30.8. The 1000 seed weight was low for 25 accessions of flax and very low for 8 genotypes of flax. Conclusions: Both studied vegetation periods were short in the following flax accessions: AC Linora, Manchwrian, Noralta and T-397. Flax genotype WUKR-846 (I2010/0031) should be deleted from the flax genetic resources collection and considered as worthless as breeding material. The WUKR 06-417 accession collected during the field expedition is distinguished by a high fibre content – 27%. The highest seed yield per plot was obtained from the cultivation of the following linseed flax cultivars: Redwood, AC Mc Duff, Norlin, Noralta and Jenny.
Źródło:
Herba Polonica; 2020, 66, 4; 32-42
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic resources of flax (Linum usitatissimum L.) as very rich source of alpha-linolenic acid
Zasoby genowe lnu (Linum usitatissimum L.) jako bardzo bogate źródło kwasu alfa-linolenowego
Autorzy:
Silska, G.
Powiązania:
https://bibliotekanauki.pl/articles/71602.pdf
Data publikacji:
2017
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
genetic resource
flax
Linum usitatissimum
alpha-linolenic acid
fatty acid
flax seed
omega-3 fatty acid
Opis:
Introduction: Polish oilseed and flaxseed collection is a source of genotypes containing very high amounts of α-linolenic acid. Objective: The objective of the study is to test the seeds for the fat content and fatty acids composition in the oil pressed from the 9 tested accessions of flax (Linum usitatissimum L.). Our goal is to promote the Polish flax collection, which seeds are unique as one of the richest sources of α-linolenic acid. Methods: Assays to determine the content of fat and fatty acids composition in linseed oil were performed at the IHAR-PIB Biochemical Laboratory in Poznań. The fat content was determined by infrared analysis (calibration performed on the basis of seed sample at IHAR-PIB in Poznań) by means of a NIRS 6500 spectrophotometer with a reflection detector within the range of 400–2500 nm. The composition of fatty acids was determined by means of a method proposed by Byczyńska and Krzymański (1969), based on gas chromatography of methyl esters of fatty acids contained in linseed oil. The following varieties of flax were investigated: Tabare (INF00111), Szegedi 30 (INF00427), Olin (INF 00444), Redwood 65 (INF00523), Dufferin (INF00540), AC Mc Duff (INF00648), Alfonso Inta (INF00683), Olinette (INF00687), Royale (INF00689). Results: The content of α-linolenic acid (ALA, C18:3) in evaluated genotypes of flax ranged from 48.9 (Royale) to 59.9% (Alfonso Inta). Content of linoleic acid (LA, C18:2) in evaluated genotypes of flax ranged from 12.4 (Tabare) to 17.1% (AC Mc Duff). The content of oleic acid (OA, C18:1) of 9 accession of flax ranged from 17.1 (Alfonso Inta) to 26.7% (Royale). The content of stearic acid in evaluated genotypes of flax ranged from 2.3 (Alfonso Inta) to 5.0% (Tabare, Szegedi 30) and the content of palmitic acid ranged from 4.7 (Dufferin) to 6.0% (Olin). The content of fat ranged from 42.7 (Olin) to 52.0% (AC Mc Duff). The fatty acid ratio n-6/n-3 ranged from 0.23/1 (Tabare) to 0.32/1 (AC Mc Duff).
Wstęp: Polska kolekcja lnu oleistego i włóknistego jest źródłem genotypów o bardzo wysokiej zawartości kwasu α-linolenowego. Cel: Przedmiotem badań było określenie zawartości oleju tłustego oraz składu kwasów tłuszczowych w wytłoczonym oleju z 9 testowanych obiektów lnu zwyczajnego (Linum usitatissimum L.). Naszym celem jest promocja polskiej kolekcji lnu, której nasiona są unikalne jako jedne z najbogatszych źródeł kwasu α-linolenowego. Metody: Oznaczenia zawartości oleju tłustego i składu kwasów tłuszczowych wykonano w Laboratorium Biochemicznym IHAR-PIB w Poznaniu. Zawartość oleju tłustego oznaczono analizą bliskiej podczerwieni (kalibracja wykonana na bazie prób nasion w IHAR-PIB w Poznaniu) spektrofotometrem NIRS 6500 z detektorem odbicia 400–2500 nm. Skład kwasów tłuszczowych oznaczono metodą opracowaną przez Byczyńską i Krzymańskiego (1969), z wykorzystaniem chromatografii gazowej estrów metylowych kwasów tłuszczowych zawartych w oleju z nasion lnu. Badania obejmowały następujące odmiany lnu zwyczajnego: Tabare (INF00111), Szegedi 30 (INF00427), Olin (INF 00444), Redwood 65 (INF00523), Dufferin (INF00540), AC Mc Duff (INF00648), Alfonso Inta (INF00683), Olinette (INF00687), Royale (INF00689). Wyniki: Zawartość kwasu α-linolenowego (ALA, C18:3) badanych genotypów lnu wynosiła od 48,9 (Royale) do 59,9% (Alfonso Inta). Zawartość kwasu linolowego (LA, C18:2) badanych genotypów lnu wynosiła od 12,4 (Tabare) do 17,1% (AC Mc Duff). Zawartość kwasu oleinowego (OA, C18:1) 9 badanych genotypów lnu wynosiła od 17,1 (Alfonso Inta) do 26,7% (Royale). Zawartość kwasu stearynowego badanych genotypów lnu wynosiła od 2,3 (Alfonso Inta) do 5,0% ( Royale) i zawartość kwasu palmitynowego wynosiła od 4,7 (Dufferin) do 6,0% (Olin). Zawartość tłuszczu wynosiła od 42,7 (Olin) do 52,0% (AC Mc Duff). Stosunek n-6/n-3 wynosił od 0,23/1 (Tabare) do 0,32/1 (AC Mc Duff).
Źródło:
Herba Polonica; 2017, 63, 4
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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