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Wyszukujesz frazę "Phytophthora infestans" wg kryterium: Temat


Tytuł:
A new method for evaluating tomato leaf resistance to Phytophthora infestans using a seedling test.
Autorzy:
Michalska, Anna Maria
Pazio, Maria
Powiązania:
https://bibliotekanauki.pl/articles/2198869.pdf
Data publikacji:
2002-06-23
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
tomato
Lycopersicon esculentum
Phytophthora infestans
late blight
resistance
method
seedling test
Opis:
A laboratory test for evaluating the tomato leaf resistance to Phytophthora infestans in the seedling stage has been developed. The test is suitable for evaluation of breeding lines and selection within large populations. The following standard varieties and accessions representing a whole range of variability of known resistance were used: Moneymaker, New Yorker, West Virginia`63, West Virginia 700 and Ottawa 30. Various P. infestans isolates were used in the tests. Tomato seedlings grown in a liquid medium were cultured and tested in a growth chamber. The infection of individual seedlings was evaluated using 9-degree logistic key and data were statistically estimated. The results were reproducible in the same growth   conditions. Ranking of infection degree was as follow: Moneymaker ≥ New Yorker > West Virginia`63 > West Virginia 700 = Ottawa 30 irrespectively of test conditions or the isolates applied. The laboratory ranking was consistent with field observations. The results of tests depended on concentration of liquid medium (lower infection at lower concentration), on the isolate used and its spore concentration. The method proposed meets all requirements necessary for breeding and research as a routine method for evaluation of the tomato leaf resistance to P. infestans.
Źródło:
Plant Breeding and Seed Science; 2002, 46, 1; 3-21
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new method of potato late blight forecasting in the Czech Republic
Autorzy:
Litschmann, T.
Hausvater, E.
Dolezal, P.
Powiązania:
https://bibliotekanauki.pl/articles/2082794.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
comparison using methods
forecasting models
late blight
Phytophthora
infestans
potato
Opis:
This study describes a newly developed index for predicting and forecasting the first (and potentially subsequent) timing of fungicide application against late blight in potato crops based on weather variables measured close to the crop. Inputs for index calculation were the following: daily minimum temperature, mean relative air humidity and daily precipita- tion. The decisive moment in the process of forecasting is the sum of daily index values for the previous 5 days. The index was tested in various localities of the Czech and the Slovak Republics for several years with a relatively high success rate exceeding the accuracy of previously applied strategies – NoBlight and negative prognosis. In comparison to the men- tioned methods, the calculated index corresponded very well to long-term wet periods and indicated the first application date correctly. In years with no wet periods (in this case, 2015 and 2017), it allowed postponing the first application and reducing the number of required sprays during the growing season. The method does not depend on determining the emer- gence date, so it can be presented on the internet without cooperation with specific growers in a given locality, and thus supply information for a wider range of users. With knowledge about crop development and the degree of resistance to late blight of grown varieties, users can subsequently choose a specific fungicide and its application date.
Źródło:
Journal of Plant Protection Research; 2020, 60, 2; 134-140
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing resistance to late blight of potato: methods used at the Scottish Crop Research Institute
Autorzy:
Stewart, Helen E.
Solomon-Blackburn, Ruth
Powiązania:
https://bibliotekanauki.pl/articles/2198944.pdf
Data publikacji:
2004-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
late blight
Phytophthora infestans
potato
resistance breeding
resistance test
screening methods
Solanum tuberosum
Opis:
At SCRI, wild species and clones of Solanum tuberosum are assessed for resistance to late blight in order to study the genetics and breed for resistance. Glasshouse progeny tests for foliage and tuber blight resistance, using true seedlings, are described. These enable the rapid screening of accessions of wild species, and the selection of the most resistant progenies in a breeding programme within one year of crossing. Assessment of the foliage resistance of clones is carried out in glasshouse tests of whole plants in flower-bud, and field trials using infector plants inoculated in the glasshouse with a complex race of Phytophthora infestans. The glasshouse test provides a reliable method of identifying R-genes and the virulence characteristics of blight isolates. The field trial gives the best estimate of field resistance and is being used to develop marker-assisted selection. Both tests are used to study the inheritance of resistance, to locate quantitative trait loci (QTL) and R-genes, and to select the most resistant clones. The tuber resistance of clones is assessed by spray-inoculating whole, immature, field-grown tubers on the day of harvest. However when large numbers of clones are involved, e.g. in the location of QTL, this is impractical, so glasshouse-grown tubers are dip-inoculated.
Źródło:
Plant Breeding and Seed Science; 2004, 50; 107-112
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bottle necks in breeding late blight resistant potato
Autorzy:
Zimnoch-Guzowska, Ewa
Tatarowska, Beata
Powiązania:
https://bibliotekanauki.pl/articles/2198951.pdf
Data publikacji:
2004-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
limitations
Phytophthora infestans
potato
resistance breeding
Opis:
The resistance to late blight (LB) is considered as a factor of major importance among resistances to potato pathogens. For four last decades more work has been done on potato resistant to Phytophthora infestans than on breeding for resistance to any other potato disease. Many sources of resistance have been known to breeders for many decades, but the results of their utilization are still disappointing. The difficulties in breeding for LB resistance were assessed by 39 participants of the survey organized for the Global Initiative on Late Blight (Zimnoch-Guzowska and Flis 2002), who indicated several major factors hampering progress in this area. The following factors found to be the most important bottle necks are discussed in the paper: (i) identification and utilization of new sources of resistance, not sufficient agronomic value of the used resistance sources; (ii) combination of earliness with LB resistance; (iii) complexity of genetic determination of LB resistance; (iv) combination of foliage and tuber resistance; (v) screening methods applied for resistance evaluation; (vi) cost of selection for resistance; (vii) lack of molecular markers (MAS) applicable to selection for LB resistance.   limitations, Phytophthora infestans, potato, resistance breeding
Źródło:
Plant Breeding and Seed Science; 2004, 50; 71-79
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Components of defence strategy induced in Solanum species by elicitor from Phytophthora infestans
Autorzy:
Polkowska-Kowalczyk, L.
Olszak, K.
Tarwacka, J.
Szczegielniak, J.
Muszynska, G.
Wielgat, B.
Powiązania:
https://bibliotekanauki.pl/articles/80345.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
Solanum
signal transduction
protein kinase
reactive oxygen species
mitogen-activated protein kinase
calcium-dependent protein kinase
signalling network
gene expression
signalling pathway
nitroblue tetrazolium
elicitor treatment
Phytophthora infestans
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Decision Support Systems for integrated control of late blight
Autorzy:
Schepers, Huub T.A.M.
Powiązania:
https://bibliotekanauki.pl/articles/2198946.pdf
Data publikacji:
2004-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
Decision Support Systems
integrated control
late blight
Phytophthora infestans
potato
Opis:
All definitions for integrated control agree that maximum emphasis should be put on prevention by using resistant cultivars and cultural measures. Moreover, the use of plant protection products should be limited to the essential minimum using Decision Support Systems (DSSs) that integrate and organise all relevant information. Computer-based DSSs that require weather information and regular late blight scouting inputs have been developed and validated in a number of European countries. In the frame of the EU concerted action “European network for development of an integrated control strategy of potato late blight (EU.NET.ICP)” several DSSs were validated in 1999-2001. The overall conclusion was that in most cases the use of DSSs combined a good disease control with a reduction of fungicide input. The DSSs can be used as a PC-version but more and more, parts of information are delivered to users by phone, fax, e-mail, SMS and websites on the Internet. An important task for the near future is to update the DSSs with information on the epidemiology of the new aggressive population of Phytophthora infestans. Issues such as (1) the influence of temperature and relative humidity on the infection process, (2) the role of primary inoculum sources (seed, oospores, volunteers, dumps), (3) the role of secondary inoculum sources (distance, severity), (4) control of early blight and (5) resistance ratings for foliar and tuber blight have to be addressed in order to be able to formulate a robust control strategy that effectively controls late (and early) blight with a minimum input of fungicides.
Źródło:
Plant Breeding and Seed Science; 2004, 50; 57-61
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Disappearance of dichlofluanid, chlorothalonil, vinclozolin and carbendazim on greenhouse tomatoes
Autorzy:
Sadlo, S
Powiązania:
https://bibliotekanauki.pl/articles/65438.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Phytophthora infestans
vinclozolin
chlorothalonil
disappearance
Botrytis cinerea
fungicide
Septoria lycopersici
dichlofluanid
carbendazim
Oidium
greenhouse tomato
seasonal disease
tomato
Opis:
Disappearance of chlorothalonil, dichlofluanid, vinclozolin and carbendazim, as active ingredients of agrochemicals commonly used for the protection of greenhouse vegetables against fungal diseases, was studied comparatively. It was found that initial residues of chlorothalonil and dichlofluanid dropped by half within 4 and 2 weeks after treatment, respectively, while the deposits of vinclozolin and carbendazim were the most persistent and after 5 weeks still constituted 50% of their initial levels. Therefore, the obtained results indicated that iprodione, procymidone and vinclozolin should ensure the longest effective protection of greenhouse tomatoes while chlorothalonil, and especially dichlofluanid, for the shortest.
Celem badań była ocena rzeczywistego zanikania chlorotalonilu, dichlofluanidu, winklozoliny i karbendazymu, stanowiących substancje aktywne preparatów chemicznych aktualnie najczęściej stosowanych do ochrony warzyw szklarniowych przed wystąpieniem chorób pochodzenia grzybowego. Przeprowadzono je w szklarni Państwowego Zakładu Ogrodniczego w Trzebownisku k. Rzeszowa. Rośliny opryskiwano wieczorem jednorodnymi mieszaninami wodnymi dwu preparatów chemicznych. W wyniku przeprowadzonych analiz stwierdzono, że zdecydowanie najszybciej zanikały pozostałości dichlofluanidu, które już po upływie dwu tygodni stanowiły około 50% początkowej jego ilości. Uwzględniając uzyskane efekty badań można przypuszczać, iż skuteczną ochronę pomidorów szklarniowych powinny najdłużej zapewniać iprodion, procymidon, chlorotalonil i karbendazym, a najkrócej dichlofluanid. Powolne tempo rzeczywistego zanikania tych związków dowodzi również, że zabieg chemiczny wykonany tydzień po zastosowaniu Bravo 500 SC, Topsinu M 70 WP, Sumilexu 50 WP lub Rovralu FLO 255 SC spowoduje znaczące sumowanie się pozostałości.
Źródło:
Journal of Plant Protection Research; 2001, 41, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of deep freezing of Phytophtora infestans on their survival and pathogenicity
Autorzy:
Sobkowiak, Sylwester
Zarzycka, Hanna
Zimnoch-Guzowska, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/2198938.pdf
Data publikacji:
2004-06-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
acclimatization
aggressiveness
liquid nitrogen
maintenance
Phytophthora infestans
survival
virulence
Opis:
The maintenance of Phytophthora infestans cultures isolates from blighted potato, frozen in liquid nitrogen, was studied in two experiments. The effects of deep freezing and acclimatization pre-treatment at different temperatures on culture survival and stability of virulence and aggressiveness were evaluated. The best survival of cultures maintained for three months in liquid nitrogen was expressed, when cultures were acclimatized before freezing at 7˚C. The survival of frozen cultures was significantly worse in comparison with control combinations stored on rye-agar and rye-agar under paraffin oil for short time (in experiment I – 40 days, in experiment II – three months). The virulence spectrum of frozen cultures after thawing was more narrow than that one observed before culture freezing. However this virulence spectrum did not differ significantly from virulence range of control cultures. The level of aggressiveness of culture stored in liquid nitrogen did not differ significantly from control cultures as well. The virulence spectrum and aggressiveness level of cultures frozen in liquid nitrogen were significantly higher after two passages of thawed cultures on potato tissues than after single passage.
Źródło:
Plant Breeding and Seed Science; 2004, 49; 79-89
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of nozzle types and adjuvants on the leaf coverage and biological efficacy of fungicides in potato
Autorzy:
Kierzek, R.
Wachowiak, M.
Powiązania:
https://bibliotekanauki.pl/articles/65449.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Phytophthora infestans
fungicide
air induction nozzle
biological efficacy
plant protection
potato
leaf
adjuvant
nozzle type
Źródło:
Journal of Plant Protection Research; 2003, 43, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elements of signalling pathways in the response of Solanum species to Phytophthora infestans
Autorzy:
Polkowska-Kowalczyk, L.
Olszak, K.
Tarwacka, J.
Szczegielniak, J.
Muszynska, G.
Wielgat, B.
Powiązania:
https://bibliotekanauki.pl/articles/80244.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
signalling pathway
Solanum species
Phytophthora infestans
reactive oxygen species
mitogen-activated protein kinase
calcium-dependent protein kinase
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Expression of resistance to Phytophthora infestans in climatic chamber-, screenhouse- and field-grown wild potato species in a detached leaflet assay
Autorzy:
Zoteyeva, Nadezhda
Powiązania:
https://bibliotekanauki.pl/articles/2198989.pdf
Data publikacji:
2004-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
detached leaflets
resistance
Phytophthora infestans
wild Solanum spp.
Opis:
A study on the expression of resistance to Phytophthora infestans of wild potato plants grown in a climatic chamber, in a screenhouse and in the field was performed in two experiments. In the first experiment 12 populations of Solanum acaule were tested. Detached leaves from field-grown plants appeared to be less resistant than detached leaves from chamber-grown plants. In the second experiment resistance responses to inoculation with P. infestans of 24 Solanum species, grown in the field and in the screenhouse were compared. In 18 populations belonging to 11 species the predominance of resistant plants was found either when plants were grown in the field or when plants were grown in the screenhouse. Within 12 tested populations no difference in resistance was observed because of high susceptibility of plants, irrespective of grown conditions. Two populations showed the same level of resistance under both grown conditions.
Źródło:
Plant Breeding and Seed Science; 2004, 50; 129-135
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identificaton of acidic pathogenesis-related [PR] proteins in potato leaves infected with potato virus Y
Autorzy:
Marczewski, W
Powiązania:
https://bibliotekanauki.pl/articles/2048193.pdf
Data publikacji:
1995
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Phytophthora infestans
acidic protein
acidic pathogenesis
necrotic strain
protein
tobacco mosaic virus
bacteria
tobacco
fungi
potato virus Y
Nicotiana tabacum
potato cultivar
Opis:
The induction of acidic proteins in seven potato cultivars (Drop, Atol, Sokół, Tarpan, Jagna, Irga, Darga) was analysed. It has been found that induction of the acidic pathogenesis-related (PR) proteins in potato leaves infected with a necrotic strain of potato virus Y (PVY-N Wi) is specific to each cultivar.
Źródło:
Journal of Applied Genetics; 1995, 36, 3; 251-253
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Implication of early nitric oxide and reactive oxygen species generation in potato resistance to Phytophthora infestans
Autorzy:
Abramowski, D.
Arasimowicz-Jelonek, M.
Floryszak-Wieczorek, J.
Powiązania:
https://bibliotekanauki.pl/articles/80727.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
nitric oxide
reactive oxygen species
potato resistance
Phytophthora infestans
reactive nitrogen species
redox signalling
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Incidence and harmfulness of potato late blight (Phytophthora infestans Mont. de Bary) on potato stems.
Autorzy:
Kapsa, Józefa
Powiązania:
https://bibliotekanauki.pl/articles/2198785.pdf
Data publikacji:
2000-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
diseases
late blight
Phytophthora infestans
potato
localization of initial late blight infection
Opis:
Changes in the occurrence of the initial late blight symptoms have been noted in some regions of Poland. Observations of potato crops showed that occurrence of the primary infections and blight symptoms is sometimes on the stem rather than on the leaves. It was confirmed that in both cases, a cause of late blight was the same species Phytophthora infestans. Surveys of many potato crops done in 1997-1999, around Poland enabled assessment of the incidence of stem blight in Poland. In 1997 - 80.5%, 1998 - 65.2% and in 1999 – 72.4% of observed crops were primary affected with late blight on stems. Stem form of the disease appeared more often in the years with less rainfall in the period from June to July. The largest number of genotypes with initial blight symptoms on stems was observed among first early clones and cultivars. Glasshouse experiments confirmed the importance of stem lesions in decreasing yield and increasing tuber infection. Results confim that blighted tubers were the least probable source of the late blight appearing on stems.
Źródło:
Plant Breeding and Seed Science; 2000, 44; 53-61
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Inheritance of tomato leaf resistance to Phytophthora infestans - new information based on laboratory tests on seedlings
Autorzy:
Michalska, A. M.
Pazio, M.
Powiązania:
https://bibliotekanauki.pl/articles/2198868.pdf
Data publikacji:
2005-06-23
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
inheritance
Lycopersicon esculentum
Phytophthora infestans
resistance
tomato
Opis:
Inheritance of tomato resistance to P. infestans was studied in progenies of crosses of resistant accessions: West Virginia 700, Ottawa 30, PI224675 and the variety New Yorker and also of the variety West Virginia’63 and resistant breeding lines crossed with susceptible forms. Populations of F1, F2, parents and resistant standards were evaluated for resistance to late blight using the test on seedlings grown in liquid medium. Resistance of the accessions West Virginia 700, Ottawa 30 and PI224675 was found to be identical and determined by the same genes: Ph-1 and Ph-2. It has not been recognized if these accessions carry other genes, neither if the variety West Virginia’63 and lines of equal resistance possess other genes beside Ph-2.  
Źródło:
Plant Breeding and Seed Science; 2005, 51; 31-42
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł

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