Zobrazeno 1 - 10
of 26
pro vyhledávání: '"H. D. Frinking"'
Publikováno v:
Plant Pathology, 48(3), 425-430
Plant Pathology 48 (1999) 3
Plant Pathology 48 (1999) 3
Twenty downy mildew isolates were collected in south, central and north Ecuador and inoculated on seedlings of 60 quinoa lines. A scale for scoring quinoa downy mildew infections was developed. Four virulence groups and three resistance factors were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88af73f250af17c9c60379685411b3f9
https://doi.org/10.1046/j.1365-3059.1999.00352.x
https://doi.org/10.1046/j.1365-3059.1999.00352.x
Publikováno v:
Plant Pathology 47 (1998)
Plant Pathology, 47, 544-569
Plant Pathology, 47, 544-569
Sorghum downy mildew (Peronosclerospora sorghi) infecting sorghum and maize, and pearl millet downy mildew (Sclerospora graminicola) infecting pearl millet can cause considerable yield loss in Africa. The last 15 years have witnessed an increase in k
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7f4b802569963564eb16e187a33aee1
https://doi.org/10.1046/j.1365-3059.1998.00285.x
https://doi.org/10.1046/j.1365-3059.1998.00285.x
Autor:
D.J. van der Gaag, H. D. Frinking
Publikováno v:
Plant Pathology. 46:978-988
Survival and germinability of oospore populations of Peronospora viciae f.sp. pisi in soil were investigated. The percentage survival was assessed using the vital stain tetrazolium bromide. Germinability was defined as the percentage of oospores that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48c38bd42ca32529990f3b9b79d5cba9
https://doi.org/10.1046/j.1365-3059.1997.d01-89.x
https://doi.org/10.1046/j.1365-3059.1997.d01-89.x
Autor:
D.J. van der Gaag, H. D. Frinking
Publikováno v:
Plant Pathology. 46:675-679
A method for the extraction of oospores of Peronospora viciae from soil is described. Approximately 75% of the oospores added to silty clay loam and loamy sand soil samples were recovered. Percentage recovery was independent of oospore density. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaf4f5bd61b0230a9f68ba6bd9fc74e6
https://doi.org/10.1046/j.1365-3059.1997.d01-70.x
https://doi.org/10.1046/j.1365-3059.1997.d01-70.x
Autor:
D.J. van der Gaag, H. D. Frinking
Publikováno v:
Journal of Phytopathology. 145:257-260
The infection court of Faba bean seedlings for oospores of Peronospora viciae f.sp. fabae in soil was determined. Soil naturally infested with oospores was placed as 3-cm thick layers at four different depths relative to Faba bean seeds. Seedlings wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::515bbc60ebfeb9e659cf0d2b8aad31c0
https://doi.org/10.1111/j.1439-0434.1997.tb00396.x
https://doi.org/10.1111/j.1439-0434.1997.tb00396.x
Autor:
D.J. van der Gaag, H. D. Frinking
Publikováno v:
European Journal of Plant Pathology. 103:573-580
The effects of host plant exudates, light and temperature on germination of oospores of Peronospora viciae f.sp. pisi in vitro were investigated. Seed and root exudates did not increase percentage germination, whereas light inhibited germination. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68676f70af54faaf8f9505c49627b6b5
https://doi.org/10.1023/a:1008607100742
https://doi.org/10.1023/a:1008607100742
Autor:
H. D. Frinking, J. G. M. Vos
Publikováno v:
International Journal of Pest Management. 43:1-10
In field trials, treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha were combined with mulch treatments in factorialtrials carried out under tropicallowland conditions. Nutrient levels of leaves and fruits were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76241076292d1d91406635520f5f5bf4
https://doi.org/10.1080/096708797228915
https://doi.org/10.1080/096708797228915
Publikováno v:
International Journal of Pest Management. 43:279-283
The constraints upon pearl millet ( Pennisetum glaucum (L.) R. Br.) cultivation were investigated in four regions in southwest Niger. Drought and low soil fertility constitute the principal problems according to farmers. Pearl millet downy mildew ( S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54910444624cb12cce4fa952af108683
https://doi.org/10.1080/096708797228573
https://doi.org/10.1080/096708797228573
Publikováno v:
European Journal of Plant Pathology. 102:687-695
Cardinal temperatures for mycelial growth ofPhytophthora porri on corn-meal agar were 11 °C, and were fitted to temperature between 0 and 24 °C with a hyperbolical model (1/p=0.00812*T+0.0243). Oospore germination, reported for the first time forP.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17528e91aba3b37da137a19b21b5f87b
https://doi.org/10.1007/bf01877250
https://doi.org/10.1007/bf01877250
Publikováno v:
European Journal of Plant Pathology. 102:365-375
White tip disease of leek (Allium porrum), caused byPhytophthora porri, was studied in field experiments. On fields infested by soil-borne inoculum (oospores), relatively short periods of explosive disease increase alternated with periods in which ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43563a13e4c656c89bd393f3ee363522
https://doi.org/10.1007/bf01878131
https://doi.org/10.1007/bf01878131