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Wyszukujesz frazę "sterility" wg kryterium: Temat


Tytuł:
L’absence qui devient présence : la vie et l’Idée dans Sixtine de Remy de Gourmont
Absence Which Becomes Presence: Life and Idea in Sixtine by Remy de Gourmont
Autorzy:
Sadkowska-Fidala, Agata
Tematy:
idea
symbolism
love
sterility
art
Pokaż więcej
Data publikacji:
2011
Powiązania:
https://bibliotekanauki.pl/articles/483622.pdf  Link otwiera się w nowym oknie
Źródło:
Quêtes littéraires; 2011, 1; 32-38
2084-8099
2657-487X
Pojawia się w:
Quêtes littéraires
Opis:
Sixtine by Remy de Gourmont marks the refusal of nature and tangible reality and the choice of imagination to the detriment of reality. Its principal character, Hubert d’Entragues is a faithful disciple of idealism of symbolism. Since he chooses to think rather that to live, it is not surprising that the plot of the novel is almost nonexistent. The plot develops around of d’Entragues’ desire to win the beautiful Sixtine, which is in itself condemned to failure since he is doing nothing to reach her and refuses to take any effort. The woman, who could have served as the principal impulse of the plot, is practically inexistent in this story (though it is a passionate story) and is replaced by the ideal woman: the story is doubled by the second story, e.g. a novel written by the character which is a transposition of his “cerebral” relation with Sixtine and a realisation of presence of the latter. Art replaces life and life does not exist in itself. It is shaped by thought. But the chosen absence of any facts of life is fruitful: it gives birth to a novel. It is a story of a prisoner in love with the statute of the Virgin which he sees while taking a daily walk. In this novel the carnal accomplishment is not necessary in order for a true and sincere passion to develop and the satisfaction of desire may destroy the dream and the ideal.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Inheritance of fertility restoration in winter triticale with cytoplasm of Triricum timopheevi
Dziedziczenie przywracania męskiej płodności u pszenżyta ozimego z cytoplazmą Triricum timopheevi
Autorzy:
Goral, H.
Stojalowski, S.
Tyrka, M.
Wedzony, M.
Tematy:
inheritance
fertility restoration
winter triticale
triticale
cytoplasm
Triricum timopheevi
male
sterility
male sterility
crossing
inbred line
gene
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Data publikacji:
2010
Powiązania:
https://bibliotekanauki.pl/articles/82572.pdf  Link otwiera się w nowym oknie
Źródło:
Folia Pomeranae Universitatis Technologiae Stetinensis. Agricultura, Alimentaria, Piscaria et Zootechnica; 2010, 13
2081-1284
Pojawia się w:
Folia Pomeranae Universitatis Technologiae Stetinensis. Agricultura, Alimentaria, Piscaria et Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gamma irradiation used on adult Tetranychus urticae Koch as a quarantine treatment
Autorzy:
Osouli, S.
Nejad, K.H.I.
Ziaie, F.
Moghaddam, M.
Tematy:
gamma-irradiation
adult
Tetranychus urticae
quarantine treatment
sterility
Pokaż więcej
Data publikacji:
2014
Powiązania:
https://bibliotekanauki.pl/articles/65503.pdf  Link otwiera się w nowym oknie
Źródło:
Journal of Plant Protection Research; 2014, 54, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Opis:
The effect of gamma radiation with 0, 200, 250, 300, 350, 400, and 450 Gy intensities on the longevity, total number of eggs, and the percent of hatched eggs laid by irradiated females of Tetranychus urticae Koch (Tetranychidae) was evaluated. Two different groups (0–24 h old and 48–72 h old) of adult females were irradiated. The results showed that 350 and 300 Gy doses significantly reduced the longevity of the 0–24 h old females and the 48–72 h old females. The younger females were more tolerant at lower dose rates than the older females. There was a quadratic relationship between dose rates and young females, while it was linear in older females. The total number of eggs laid by females of both ages was significantly reduced with a linear trend by 250 Gy irradiation. The eggs laid by females of both the 0–24 h olds and the 48–72 h olds lost their hatchability when the dose rate was 350 Gy. It was concluded, that applying a dose rate of 320 Gy on one of the mates (male or female) before mating, or a 300 Gy on both of them, would be sufficient to cause sterility in adult mites.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variability in Expression of Male Fertility in Triticale (Xtriticosecale Wittmack) With Triticum Timopheevi Cytoplasm
Autorzy:
Góral, Halina
Tyrka, Mirosław
Stojałowski, Stefan
Wędzony, Maria
Tematy:
anther development
male sterility assessment
triticale
Triticum timopheevi cytoplasm
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Data publikacji:
2009-12-20
Powiązania:
https://bibliotekanauki.pl/articles/2199065.pdf  Link otwiera się w nowym oknie
Źródło:
Plant Breeding and Seed Science; 2009, 60; 23-30
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Opis:
We present a reliable, visual method for evaluation of the level of male fertility during flowering, that is indispensable for breeding of hybrid cultivars of winter triticale based on the cms-T.timopheevi system. Detailed observations of anther development were performed on 20 F2 and BC1 plants derived from crosses between male-sterile and fertility restoring lines. Variation of anther development within florets, spikelets, spikes, and among spikes of the same plant was examined...
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
VARIABILITY IN EXPRESSION OF MALE FERTILITY IN TRITICALE (XTRITICOSECALE WITTMACK) WITH TRITICUM TIMOPHEEVI CYTOPLASM.
Autorzy:
Góral, Halina
Tyrka, Mirosław
Stojałowski, Stefan
Wędzony, Maria
Tematy:
anther development
male sterility assessment
triticale
Triticum timopheevi cytoplasm
Pokaż więcej
Data publikacji:
2009
Powiązania:
https://bibliotekanauki.pl/articles/55928454.pdf  Link otwiera się w nowym oknie
Źródło:
Plant Breeding and Seed Science; 2009, 60; 23-30
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Opis:
We present a reliable, visual method for evaluation of the level of male fertility during flowering, that is indispensable for breeding of hybrid cultivars of winter triticale based on the cms-T.timopheevi system. Detailed observations of anther development were performed on 20 F2 and BC1 plants derived from crosses between male-sterile and fertility restoring lines. Variation of anther development within florets, spikelets, spikes, and among spikes of the same plant was examined...
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hybrids of Trifolium pratense L. [2n - 14 plus 2] with T. diffusum Ehrh. [2n - 16] and other 16-chromosome Trifolium species
Autorzy:
Strzyzewska, C
Tematy:
Trifolium diffusum
Trifolium pratense
hybrid
interspecific hybrid
sterility
meiosis
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Data publikacji:
1995
Powiązania:
https://bibliotekanauki.pl/articles/2048130.pdf  Link otwiera się w nowym oknie
Źródło:
Journal of Applied Genetics; 1995, 36, 1; 35-42
1234-1983
Pojawia się w:
Journal of Applied Genetics
Opis:
16-chromosome forms of red clover (2n=14+2) were crossed to six Trifolium species with the chromosome number 2n=16. Hybrid plants were derived from the cross of a stable 16-chromosome red clover T. pratense with T. diffusum (2n=16). No seeds were obtained from reciprocal crosses. F₁ hybrid plants were morphologically more similar to T. diffusum, whereas their other characters, e.g. flower number per head, were intermediate between the species crossed. All F₁ hybrids had the chromosome number 2n=16. Meiosis proceeded with large irregularities. The average number of bivalents per cell was 3.32, and that of univalents - 9.98. Univalents exhibited a high stickiness and frequently formed "end-to-end" configurations and chains consisting of about a dozen of so chromosomes. Bivalents were straight. Lagging chromosomes and chromosome bridges were observed during AI; lagging chromosomes were also found during AII. After an equalizing division, tetrads and different from them microspore polyads were formed. 16-chromosome hybrids were male- and female-sterile. No hybrids were obtained from the stable 16-chromosome red clover T. pratense (n=7 chromosomes) crossed to the selected clover species (T. apertum Bobr., T. alexandrinum L. and others) with n=8 chromosomes.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differences in editing of mitochondrial nad3 transcripts from CMS and fertile carrots.
Autorzy:
Rurek, Michał
Szklarczyk, Marek
Adamczyk, Natalia
Michalik, Barbara
Augustyniak, Halina
Tematy:
cytoplasmic male sterility
Daucus carota
RNA editing
nad3 gene
Pokaż więcej
Data publikacji:
2001
Powiązania:
https://bibliotekanauki.pl/articles/1044099.pdf  Link otwiera się w nowym oknie
Źródło:
Acta Biochimica Polonica; 2001, 48, 3; 711-717
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Opis:
A high level of the nucleotide sequence conservation was found for mitochondrial nad3 gene of carrot. Three silent nucleotide substitutions differentiate nad3 open reading frames from cytoplasmic male sterile and male fertile carrots. All these differences are preserved on the RNA level. Partial and silent editing also distinguished both carrots. Three of the C to U conversions were specific to the fertile line. In the two examined carrot lines editing did not affect the mode of alteration of encoded amino acids.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Male fertility restoration of rye crosses in the pampa cytoplasm.
Autorzy:
Kolasiñska, Irena
Tematy:
hybrid breeding
male sterility
restoration of male fertility
winter rye
Pokaż więcej
Data publikacji:
2003-06-22
Powiązania:
https://bibliotekanauki.pl/articles/2198892.pdf  Link otwiera się w nowym oknie
Źródło:
Plant Breeding and Seed Science; 2003, 47; 33-37
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Opis:
Male fertility restoration of F1 crosses between male sterile lines (P lines) and restorers (R) was studied in 2000. Pollen fertility of 50 F1 crosses derived by crossing 10 P lines to 5 restorers was estimated. The degree of male sterility/fertility was assessed by visual anther score of single plants on a 1-9 scale, restorer indices and visual pollen shedding scores of plots on a 1-9 scale. @Abstract = Coefficients of correlation between the above fertility traits were calculated. The analysis of variance showed that the degree of male fertility of F1 crosses strongly depends on a restorer genotype, a P line genotype as well as on the P ´ R interaction. The restorer and P line genotypes were a major source of variation.A considerable range of pollen fertility was evident in the single crosses. The mean restorer index of F1 crosses ranged from 3,4 to 98,7%. The P lines under study were divided into three groups on the basis of mean restorer indices of their crosses with five restorers: easy, medium and difficult to restore. All the restorers tested, provide a sufficient restoration of male fertility of the F1 crosses with majority of the P lines. The new restorer, 330 R appeared to be more effective in restoration of pollen fertility than the other currently used lines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetics of a male-sterile rye of 'G-type' with results of the first F1 –hybrids.
Autorzy:
Gi., Melz
Melz, Gu.
Hartmann, F.
Tematy:
rye
male-sterility
inheritance
ergot
powdery mildew
F1-hybrids
Pokaż więcej
Data publikacji:
2003-06-22
Powiązania:
https://bibliotekanauki.pl/articles/2198893.pdf  Link otwiera się w nowym oknie
Źródło:
Plant Breeding and Seed Science; 2003, 47; 47-55
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Opis:
Male-sterile plants of G-type were found in rye cv. Schlagler alt. The major recessive gene controlling this male-sterility is allelic with male-sterility genes of the C- and R-types. The genetic system of the Pampa-type is completely different; it is controlled by dominant gene(s) and mt-DNA showed different restriction fragment patterns. The major gene of G-type msl(Rfgl) is located on chromosome arm 4RL; the sites of the minor genes ms2 and ms3 were found on chromosomes 3R and 6R. Hybrids produced by crossing malesteriles of G-type with inbred lines have normal pollination and, are therefore less sensitive to ergot, like population rye. In 2000 the mslnr-system of G-type rye was registered as "Guelzowerl". Male-sterile plants of "Guelzowerl" were used to produce the rye hybrid cultivar "Novus", which was also registered in 2000. "Novus" is the first rye hybrid cultivar with resistance to powdery mildew.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative study for effects of chemical mutagenesis on seed germination, survivability and pollen sterility in M1 and M2 generations of Dianthus
Autorzy:
Roychowdhury, Rajib
Alam, Molla Jaunatul Ferdousul
Bishnu, Sunanda
Dalal, Tinkari
Tah, Jagatpati
Tematy:
chemical mutagen
Dianthus caryophyllus
mutant generation
pollen sterility
seed germination
Pokaż więcej
Data publikacji:
2012-04-19
Powiązania:
https://bibliotekanauki.pl/articles/2199631.pdf  Link otwiera się w nowym oknie
Źródło:
Plant Breeding and Seed Science; 2012, 65; 29-38
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Opis:
Chemical mutagenesis is an efficient tool used in mutation breeding programme for improving various vital characteristics in floricultural crop, like Dianthus. In this study, ethyl methane sulphonate (EMS), sodium azide (SA) and colchicine (COL) with three different concentrations (0.1%, 0.4% and 0.7%) were used to analyse their effect on seed germination behaviour, survivability and pollen sterility in both first (M1) and second (M2) mutant generations. It was noted that increase in the dose of EMS and SA, germination percentage and survivability were decreased; whereas colchicine doses were proportional to increase germination percentage at seedling stage, but they were not survived till maturity. In M1 and M2, higher lethality over control (44.3 and 32.89, respectively) was shown by 0.7% of SA and EMS, respectively. Pollen sterility was also increased with increasing mutagenic doses. The maximum pollen sterility was 71.8% and 61.1% for 0.7% COL in M1 and M2, respectively. So, the effect of chemical mutagenesis on biological parameters with SA (0.7%) treatment in M1 and EMS (0.7%) treatment in M2 were much more beneficial as compared to colchicine. For each studied parameter, chemical mutagenesis was higher in M1 than M2. Hence, for the first time in Dianthus, we reported that these mutagens can be used for improving the germination behaviour and the metrical traits in Dianthus cultivar.
Dostawca treści:
Biblioteka Nauki
Artykuł

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