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Wyszukujesz frazę "seed coat" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Physiological-biochemical parameters and characteristics of seed coat structure in lupin seeds subjected to long storage at different temperatures
Autorzy:
Piotrowicz-Cieslak, A I
Michalczyk, D J
Gorska, K
Bulinska-Radomska, Z.
Gorecki, R.J.
Powiązania:
https://bibliotekanauki.pl/articles/58178.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
physiological parameter
biochemical parameter
seed coat
coat structure
lupin
seed
long storage
storage
storability
protein
soluble carbohydrate
seed surface
different temperature
temperature
Opis:
Seed vigour, viability, the contents of soluble carbohydrates, total protein, albumins, and globulins, as well as seed coat structure, were analysed in yellow lupin (Lupinus luteus L.) cv. Iryd seeds stored for 20 years at -14oC, 0oC or at room temperature (approx. +20oC). Seed storage at room temperature reduced viability (to 2%) and increased seed leachate electroconductivity. Determinations of total proteins showed that protein content was significantly reduced in seeds stored at +20oC compared to the other storage regimens. Raffinose family oligosaccharides were the main soluble carbohydrates in seeds stored at 0oC and -14oC, whereas sucrose dominated in seeds stored at room temperature. Scanning electron microscopy (SEM) of seed surface and seed coat sections revealed appearance of an amorphic layer on the surface of seeds stored at room temperature (not observed in other seeds) and distinct shrinking of macrosclereid layer in seeds stored at -14oC. Macrosclereids layer in all seeds was 100 um thick and accounted for 60% of seed coat thickness. The obtained results suggest that for long term storage of lupin seeds at 0oC is the most advisable temperature if both costs of storage and seed storability are considered.
Źródło:
Acta Societatis Botanicorum Poloniae; 2008, 77, 3; 201-205
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Composition of seed soluble carbohydrates and ultrastructural diversity of testa in lupins from the Mediterranean Region
Autorzy:
Piotrowicz-Cieslak, A I
Powiązania:
https://bibliotekanauki.pl/articles/56576.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Mediterranean Region
gas chromatography
Fabaceae
Lupinus
scanning electron microscopy
seed coat
lupin
cyclitol
carbohydrate
galactosyl cyclitol
raffinose family oligosaccharide
seed
Opis:
This article present a comparison of soluble sugar levels in seeds of Lupinus atlanticus, Lupinus cosentinii, Lupinus palaestinus and Lupinus pilosus, Lupinus hispanicus subsp. hispanicus and Lupinus luteus of Juno variety. Considering that sugars are accumulated in embryos, only the embryonic tissues were used for biochemical analyses. Additionally, the share of testa and embryo in seed tissues was evaluated. The seed-coat thickness was measured using scanning electron microscopy. The seed coat had the largest share in seeds of Lupinus pilosus and Lupinus palaestinus, and the least share in seeds of Lupinus hispanicus subsp. hispanicus and Lupinus luteus of Juno variety. In the seed of Lupinus pilosus the thickness of the seed coat was 1100 µm, while in Lupinus luteus it was 300 µm. The analysed Lupinus seeds accumulated from 73 mg/g d.m. (dry matter of seed embryo) to 155 mg of soluble sugars/g d.m. The highest quantity of oligosaccharides of the raffinose series was found in seeds of Lupinus luteus, while the lowest amount in seed of Lupinus palaestinus. Galactosyl cyclitols appeared in largest amount in seeds of Lupinus palaestinus and Lupinus pilosus, appropriately 41.93 and 33.75 mg/g dm. The lowest amount of galactosyl cyclitols appeared in Lupinus atlanticus, Lupinus cosentinii and Lupinus hispanicus.
Źródło:
Acta Societatis Botanicorum Poloniae; 2005, 74, 4
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Domestication and breeding improvement of narrow-leaved lupin [L.angustifolius L.]
Autorzy:
Swiecicki, W
Swiecicki, W.K.
Powiązania:
https://bibliotekanauki.pl/articles/2048139.pdf
Data publikacji:
1995
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
flower
Lupinus angustifolius
pod
narrow-leaved lupin
alkaloid content
structure
seed coat
growth rhythm
leaf
colour
disease resistance
breeding
vegetation period
monohybrid variation
lupin
Opis:
A great progress had been made in narrow-leafed lupin in a comparatively short period. Despite elimination of basic disadvantages (hard seeds, high content of alkaloids, pod shattering) disease-resistant, unbranched and thermoneutral cultivars have been bred. Investigations on the variation range and inheritance mode of commercially important characters were followed by breeding achievements. The paper contains a review of references for 35 genes controlling alkaloid content, growth rhythm, branching, vegetation length, shape and color of leaves, color of flowers and seeds, seed hardiness, pod characters and disease resistance. Authors of characters and gene symbols from different research centres and from different years are given on the basis of priority. The importance of these genes for breeding improvement is discussed. Type lines for characters/genes and genotype of more important cultivars collected in the Polish narrow-leafed lupin genebank are presented.
Źródło:
Journal of Applied Genetics; 1995, 36, 2; 155-167
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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