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Wyszukujesz frazę "Poa pratensis" wg kryterium: Temat


Wyświetlanie 1-8 z 8
Tytuł:
Powdery mildew resistance in Kentucky bluegrass ecotypes from Poland.
Autorzy:
Czembor, Elżbieta
Feuerstein, Ulf
Żurek, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/2198803.pdf
Data publikacji:
2001-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
Erysiphe graminis
ecotypes
Kentucky bluegrass (Poa pratensis L.)
resistance
Opis:
A total of 444 ecotypes Kentucky bluegrass (Poa pratensis L.) collected in Poland were screened for resistance to powdery mildew. A field experiment was established at Hof Steimke, DSV (Deutschen Saatveredelung), Germany. The ecotypes originated from Polish Gene Bank, IHAR – Botanical Garden, Bydgoszcz. The average powdery mildew resistance score for tested ecotypes was 4.3, and the same score for eight varieties used as a control was 4.8. From the control varieties (Limousine, Alicja, Julia, Berbie, Ottos, Jori, Eska and Oxford) the most resistant to infection was Limousine. Plants showed resistance scores 5 or 7, on average 6.17. Sixty-two ecotypes (14.0%) which were scored on average more than 6 were included in two groups: with high resistance (15 ecotypes) and with moderate resistance (47 ecotypes). Ecotypes which plants were scored on average less than 6 were included in a susceptible group (scores on average 4.0 – 5.9), and a very susceptible group (scores on average 2.0 – 3.9). There were 226 ecotypes in the susceptible group (50.9%) and 156 (35.1%) in the very susceptible group.High resistance to powdery mildew showed ecotypes collected from nine habitats: meadow, wet meadow, peat meadow, pasture, field, forest, waterside, ditch and roadside. The highest percentage of ecotypes with high resistance was collected from wet meadows. The value of these newly identified highly resistant ecotypes for control of powdery mildew on Kentucky bluegrass is discussed.
Źródło:
Plant Breeding and Seed Science; 2001, 45, 2; 21-31
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Observations of root system development and dynamics of root : shoot ratio of selected turf grass varieties and breeding lines grown in different soil conditions.
Autorzy:
Dziamski, A.
Stypczyńska, Z.
Żurek, G.
Łabędzki, L.
Długosz, J.
Powiązania:
https://bibliotekanauki.pl/articles/2199117.pdf
Data publikacji:
2007-06-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
Festuca rubra
Lolium perenne
Poa pratensis
turf
root
root:shoot ratio
Opis:
Twelve varieties and breeding lines from three turf grass species, grown in pots in three different soil mixtures were first tested in glasshouse for drought resistance. Further, turf in pots was allowed to regenerate and root and shoot dry weight was measured after one (in April) and two (in May, August and October) years from seed sowing. Turf grass regeneration after simulated drought was different accordingly to soil mixtures used...
Źródło:
Plant Breeding and Seed Science; 2007, 55; 73-87
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Occurrence of ergot in seed lots of grasses harvested in different regions of Poland
Autorzy:
Wiewióra, Barbara
Prończuk, Maria
Powiązania:
https://bibliotekanauki.pl/articles/2199032.pdf
Data publikacji:
2006-06-22
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
Claviceps purpurea
Festuca rubra
grass seeds
Lolium perenne
Poa pratensis
size of sclerotia
Opis:
The ergot (Claviceps purpurea) incidence in seed samples of Poa pratensis, Lolium perenne, L. multiflorum, Festuca rubra and F. pratensis cultivars originating from different regions of grass cultivation in Poland was detected in 1999 – 2002. Each year, about hundred twenty cultivars of different species were tested. It was found that number of seed replaced by sclerotia significantly varied and depended on the year of seed harvest, species and cultivar tested and region of grass grown for seed. The highest level of Claviceps purpurea sclerotia almost for all grass species was detected in 1999. The highest number of seed replaced by sclerotia was found in sowing material of Poa pratensis for all years of testing. Ergot in seed lots of L. multiflorum and F. pratensis were detected at trace levels. Differences in susceptibility to Claviceps purpurea among cultivars were observed. However, significant variation in occurrence of ergot sclerotia were noted for the same cultivar harvested in different region of Poland. It was found that size of sclerotia depended on the host - grass species and the year of seed harvest. Significant differences  were noted particularly in the length and weight of sclerotia.
Źródło:
Plant Breeding and Seed Science; 2006, 53; 53-62
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Drought on the Performance of Threeturf Grass Species
Autorzy:
Żurek, Grzegorz
Prokopiuk, Kamil
Rachwalska, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/2199706.pdf
Data publikacji:
2018-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
drought,
grasses,
turf,
cell membrane stability,
Lolium perenne,
Festuca rubra,
Poa pratensis.
Opis:
Drought is the main environmental factor hampering world agriculture production. In the face of warmingclimate and reduced fresh water resources it become obvious that search for any factors decreasing water useis strongly recommended. Turf grasses able to withstand drought period longer could be recommended for turfareas as parks, lawns, home gardens etc. and relatively lower amounts of water should ensure satisfactory turfquality. Therefore, twelve turf varieties from three major cool-season turf grass species: perennial ryegrass(Lolium perenne L.), Kentucky bluegrass (Poa pratensis L.) and red fescue (Festuca rubra L.) were tested inglasshouse pot experiment and in the laboratory for determination of their relative ability to withstand greenlonger in the face of water deficit.The different response of the examined forms to drought was noted. Conditions that favor fast water depletionwere the most suitable for the expression of water deficit-related traits. Therefore, sandy mixture of 16%volumetric moisture content at field water capacity was mostly suitable for observation of the variation oftested forms. Turf condition of Kentucky bluegrass, as contrary to red fescue, was strongly connected with thesoil moisture. Different manifestation of drought resistance was observed in tested species. Kentucky bluegrass,as rather no resistant to drought, exposed low level of drought avoidance. Red fescue was able to survivedrought mainly due to leaf blades resistant to desiccation. In perennial ryegrass some other mechanismsevolved to survive drought. Early leaf wilting and senescence contributes to nutrient remobilization duringdrought and avoids large water loses during the transpiration. Therefore, perennial ryegrass turf was able toregenerate better after drought, as compared to the other tested grass species.Search for new turf forms should focus on searching for ability to maintain acceptable conditions longer ina presence of increasing water deficit. It will then reduce the duration of period of poor turf conditions andfurther, turf water demands.
Źródło:
Plant Breeding and Seed Science; 2018, 78; 3-22
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of different environmental conditions on visual merit of turf grasses.
Autorzy:
Prończuk, Sławomir
Żurek, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/2199158.pdf
Data publikacji:
2008-06-22
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
Deschamspia cespitosa
Festuca arundinacea
Poa pratensis
Poa supina
Lolium perenne
Festuca rubra
turf maintenance
shade
Opis:
Three different types of environmental conditions were used in five years of turf grass evaluation: no.1 – in sun, moderately intensive management with irrigation; no.2 – in park shade, extensively managed but irrigated when necessary; no.3 – in park shade, extensively managed and not irrigated. Visual merit (VM) of following cultivars was scored in 1 – 9 scale: perennial ryegrass Stadion, red fescue Nimba, smooth-stalked meadow grass Conni, tall fescue Asterix, prostrate meadow grass Supranova and tufted hairgrass Brok...
Źródło:
Plant Breeding and Seed Science; 2008, 57; 35-44
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of propiconazole (Tilt 250 EC) and Drechslera poae on germination capacity of Kentucky blue grass
Autorzy:
Czembor, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/2198997.pdf
Data publikacji:
2005-12-22
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
leaf spot and melting out
Poa pratensis L.
propiconazole (Tilt 250 EC)
seed germination
Opis:
The effect of leaf spot and melting out disease and chemical control on seed quality of Kentucky bluegrass was investigated over two seasons in three treatments: natural infection, inoculation by Drechslera poae and Tilt 250 EC (propiconazole) application. Disease incidence in the treatment with natural infection was low and in the treatment with inoculation was much heavier. Application of propiconazole and occurrence of leaf spot and melting out disease not affected germination capacity of Kentucky bluegrass. Future experiments are needed to confirm obtained results.
Źródło:
Plant Breeding and Seed Science; 2005, 52; 29-34
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The relationship between sod strength and turf quality of common grass cultivars.
Autorzy:
Prończuk, Sławomir
Żurek, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/2199156.pdf
Data publikacji:
2008-06-22
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
Poa pratensis
Poa supina
Deschampsia cespitosa
Lolium perenne
Festuca rubra
rooting depth
shoot density
visual merit
Opis:
The sod strength, rooting depth and turf quality (expressed by shoot density and visual merit) of ten turf grass cultivars were studied during three years under medium intensive turf maintenance. Cultivars of smooth stalked meadow grass (SMG), prostrate meadow grass, tall fescue (TF), red fescue., tufted hairgrass (TH) and perennial ryegrass (PR) were examined. Simple and fast evaluation ‘hand tool’ to determine overall sod strength was used. Seasonal variation of traits for tested cultivars was described. The highest values of sod strength were noted for SMG cultivars and the lowest – for PR, TF and TH cultivars...
Źródło:
Plant Breeding and Seed Science; 2008, 57; 25-34
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Low maintenance turf – quality and weed aspects.
Autorzy:
Żurek, Grzegorz
Tomaszewski, Bartosz
Powiązania:
https://bibliotekanauki.pl/articles/2199171.pdf
Data publikacji:
2009-06-21
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
cultivars
Festuca arundinacea
Festuca nigrescens
Festuca rubra
Festuca ovina
Lolium perenne
low-input
mixtures
Poa pratensis
Opis:
Turfgrass varieties of Festuca rubra ssp. rubra, F.r. ssp. trichophylla, F. nigrescens, F.arundinacea, F.ovina ssp. vulgaris, F.o. ssp duriuscula, Lolium perenne and Poa pratensis as well as mixtures of high and low share of Lolium perenne were tested in low maintenance conditions during 5 years and evaluated for: shoot density, visual merit and for weed infestation. None of tested entries was able to keep initial quality. Only for few of them (mostly varieties of Festuca ovina ssp. duriuscula and F.arundinacea) visual merit after 5 years was still close to the level of minimal user-accepted value (5 in 1-9 scale). The least visual merit values were noted for Poa pratensis and Festuca rubra ssp. rubra...
Źródło:
Plant Breeding and Seed Science; 2009, 59; 13-20
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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