role of temperature and free moisture in onion flower blight
The cardinal temperatures at which onion umbels were blighted (after inoculation when two-thirds of the florets were open) with Botrytis squamosa, B. cinerea, and B. allii (isolated from blighted onion florets) were near 9, 21, and 27 C for B. squamosa, near 12, 21, and 30 C for B. cinerea, and near...
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| Veröffentlicht in: | Phytopathology 1986-06, Vol.76 (6), p.612-616 |
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| creator | Ramsey, G.R Lorbeer, J.W |
| description | The cardinal temperatures at which onion umbels were blighted (after inoculation when two-thirds of the florets were open) with Botrytis squamosa, B. cinerea, and B. allii (isolated from blighted onion florets) were near 9, 21, and 27 C for B. squamosa, near 12, 21, and 30 C for B. cinerea, and near 9, 24, and 30 C for B. allii. The cardinal temperatures for mycelial growth (potato-dextrose agar) of B. squamosa, B. cinerea, and B. allii were near 5, 22, and 30 C for each fungus. The cardinal temperatures for conidial germination (on purified water agar) were near 6, 15, and 30 C for B. squamosa; 3, 18, and 33 C for B. cinerea; and 6, 24, and 33 C for B. allii. When the duration of free moisture on umbels after inoculation with the three pathogens was increased from 0 to 96 hr. the percentages of unopened florets, open florets, and immature seed capsules blighted at 21 C were increased significantly. Free moisture durations of 12-24, 6-12, and 6-12 hr were necessary for blighting of unopen florets, open florets, and immature seed capsules, respectively, by each pathogen at 21 C. A positive correlation between the amount of July rainfall and the natural incidence of onion flower blight was observed in Orange County, New York, from 1976 to 1981. 10 references, 2 figures, 1 table. |
| doi_str_mv | 10.1094/Phyto-76-612 |
| format | Article |
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The cardinal temperatures for mycelial growth (potato-dextrose agar) of B. squamosa, B. cinerea, and B. allii were near 5, 22, and 30 C for each fungus. The cardinal temperatures for conidial germination (on purified water agar) were near 6, 15, and 30 C for B. squamosa; 3, 18, and 33 C for B. cinerea; and 6, 24, and 33 C for B. allii. When the duration of free moisture on umbels after inoculation with the three pathogens was increased from 0 to 96 hr. the percentages of unopened florets, open florets, and immature seed capsules blighted at 21 C were increased significantly. Free moisture durations of 12-24, 6-12, and 6-12 hr were necessary for blighting of unopen florets, open florets, and immature seed capsules, respectively, by each pathogen at 21 C. A positive correlation between the amount of July rainfall and the natural incidence of onion flower blight was observed in Orange County, New York, from 1976 to 1981. 10 references, 2 figures, 1 table.</description><identifier>ISSN: 0031-949X</identifier><identifier>EISSN: 1943-7684</identifier><identifier>DOI: 10.1094/Phyto-76-612</identifier><identifier>CODEN: PHYTAJ</identifier><language>eng</language><publisher>St. Paul, MN: American Phytopathological Society</publisher><subject>510100 - Environment, Terrestrial- Basic Studies- (-1989) ; 550900 - Pathology ; Allium cepa ; AMBIENT TEMPERATURE ; BASIC BIOLOGICAL SCIENCES ; Biological and medical sciences ; blight ; Botrytis allii ; Botrytis cinerea ; DISEASES ; ENVIRONMENTAL EFFECTS ; ENVIRONMENTAL SCIENCES ; FOOD ; Fundamental and applied biological sciences. Psychology ; Fungal plant pathogens ; FUNGI ; GROWTH ; HERBS ; infection ; MOISTURE ; ONIONS ; PATHOGENS ; Pathology, epidemiology, host-fungus relationships. Damages, economic importance ; Phytopathology. Animal pests. Plant and forest protection ; PLANT GROWTH ; PLANTS ; Sclerotinia squamosa ; temperature ; VEGETABLES ; water content</subject><ispartof>Phytopathology, 1986-06, Vol.76 (6), p.612-616</ispartof><rights>1986 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c245t-517f7856077f26384ce200c2e9f9eb822556a76dd64d42cdb0c6d57c8eb1bd653</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,885,3724,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=8771767$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/7120308$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Ramsey, G.R</creatorcontrib><creatorcontrib>Lorbeer, J.W</creatorcontrib><creatorcontrib>Cornell Univ., Ithaca, NY</creatorcontrib><title>role of temperature and free moisture in onion flower blight</title><title>Phytopathology</title><description>The cardinal temperatures at which onion umbels were blighted (after inoculation when two-thirds of the florets were open) with Botrytis squamosa, B. cinerea, and B. allii (isolated from blighted onion florets) were near 9, 21, and 27 C for B. squamosa, near 12, 21, and 30 C for B. cinerea, and near 9, 24, and 30 C for B. allii. The cardinal temperatures for mycelial growth (potato-dextrose agar) of B. squamosa, B. cinerea, and B. allii were near 5, 22, and 30 C for each fungus. The cardinal temperatures for conidial germination (on purified water agar) were near 6, 15, and 30 C for B. squamosa; 3, 18, and 33 C for B. cinerea; and 6, 24, and 33 C for B. allii. When the duration of free moisture on umbels after inoculation with the three pathogens was increased from 0 to 96 hr. the percentages of unopened florets, open florets, and immature seed capsules blighted at 21 C were increased significantly. Free moisture durations of 12-24, 6-12, and 6-12 hr were necessary for blighting of unopen florets, open florets, and immature seed capsules, respectively, by each pathogen at 21 C. A positive correlation between the amount of July rainfall and the natural incidence of onion flower blight was observed in Orange County, New York, from 1976 to 1981. 10 references, 2 figures, 1 table.</description><subject>510100 - Environment, Terrestrial- Basic Studies- (-1989)</subject><subject>550900 - Pathology</subject><subject>Allium cepa</subject><subject>AMBIENT TEMPERATURE</subject><subject>BASIC BIOLOGICAL SCIENCES</subject><subject>Biological and medical sciences</subject><subject>blight</subject><subject>Botrytis allii</subject><subject>Botrytis cinerea</subject><subject>DISEASES</subject><subject>ENVIRONMENTAL EFFECTS</subject><subject>ENVIRONMENTAL SCIENCES</subject><subject>FOOD</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Fungal plant pathogens</subject><subject>FUNGI</subject><subject>GROWTH</subject><subject>HERBS</subject><subject>infection</subject><subject>MOISTURE</subject><subject>ONIONS</subject><subject>PATHOGENS</subject><subject>Pathology, epidemiology, host-fungus relationships. Damages, economic importance</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>PLANT GROWTH</subject><subject>PLANTS</subject><subject>Sclerotinia squamosa</subject><subject>temperature</subject><subject>VEGETABLES</subject><subject>water content</subject><issn>0031-949X</issn><issn>1943-7684</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1986</creationdate><recordtype>article</recordtype><recordid>eNo90E1LAzEQBuAgCtbqzbtBPLo6yeZjF7xI8QsKClrwFrLZpI1sNyWJSP-92654GmZ4ZgZehM4J3BCo2e3baptDIUUhCD1AE1KzcugqdogmACUpalZ_HqOTlL4AQFZcTNBdDJ3FweFs1xsbdf6OFuu-xS5ai9fBp_3E9zj0PvTYdeHHRtx0frnKp-jI6S7Zs786RYvHh4_ZczF_fXqZ3c8LQxnPBSfS7b6BlI6KsmLGUgBDbe1q21SUci60FG0rWMuoaRswouXSVLYhTSt4OUWX492QslfJ-GzNyoS-tyYrSSiUUA3oekQmhpSidWoT_VrHrSKgdvGofTxKCjXEM_CrkW90MrpzUffGp_-dSkoihRzYxcicDkov40AW7xRICYTxmg2x_gLzoG5i</recordid><startdate>19860601</startdate><enddate>19860601</enddate><creator>Ramsey, G.R</creator><creator>Lorbeer, J.W</creator><general>American Phytopathological Society</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>19860601</creationdate><title>role of temperature and free moisture in onion flower blight</title><author>Ramsey, G.R ; Lorbeer, J.W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c245t-517f7856077f26384ce200c2e9f9eb822556a76dd64d42cdb0c6d57c8eb1bd653</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1986</creationdate><topic>510100 - Environment, Terrestrial- Basic Studies- (-1989)</topic><topic>550900 - Pathology</topic><topic>Allium cepa</topic><topic>AMBIENT TEMPERATURE</topic><topic>BASIC BIOLOGICAL SCIENCES</topic><topic>Biological and medical sciences</topic><topic>blight</topic><topic>Botrytis allii</topic><topic>Botrytis cinerea</topic><topic>DISEASES</topic><topic>ENVIRONMENTAL EFFECTS</topic><topic>ENVIRONMENTAL SCIENCES</topic><topic>FOOD</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Fungal plant pathogens</topic><topic>FUNGI</topic><topic>GROWTH</topic><topic>HERBS</topic><topic>infection</topic><topic>MOISTURE</topic><topic>ONIONS</topic><topic>PATHOGENS</topic><topic>Pathology, epidemiology, host-fungus relationships. Damages, economic importance</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>PLANT GROWTH</topic><topic>PLANTS</topic><topic>Sclerotinia squamosa</topic><topic>temperature</topic><topic>VEGETABLES</topic><topic>water content</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ramsey, G.R</creatorcontrib><creatorcontrib>Lorbeer, J.W</creatorcontrib><creatorcontrib>Cornell Univ., Ithaca, NY</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Phytopathology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ramsey, G.R</au><au>Lorbeer, J.W</au><aucorp>Cornell Univ., Ithaca, NY</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>role of temperature and free moisture in onion flower blight</atitle><jtitle>Phytopathology</jtitle><date>1986-06-01</date><risdate>1986</risdate><volume>76</volume><issue>6</issue><spage>612</spage><epage>616</epage><pages>612-616</pages><issn>0031-949X</issn><eissn>1943-7684</eissn><coden>PHYTAJ</coden><abstract>The cardinal temperatures at which onion umbels were blighted (after inoculation when two-thirds of the florets were open) with Botrytis squamosa, B. cinerea, and B. allii (isolated from blighted onion florets) were near 9, 21, and 27 C for B. squamosa, near 12, 21, and 30 C for B. cinerea, and near 9, 24, and 30 C for B. allii. The cardinal temperatures for mycelial growth (potato-dextrose agar) of B. squamosa, B. cinerea, and B. allii were near 5, 22, and 30 C for each fungus. The cardinal temperatures for conidial germination (on purified water agar) were near 6, 15, and 30 C for B. squamosa; 3, 18, and 33 C for B. cinerea; and 6, 24, and 33 C for B. allii. When the duration of free moisture on umbels after inoculation with the three pathogens was increased from 0 to 96 hr. the percentages of unopened florets, open florets, and immature seed capsules blighted at 21 C were increased significantly. Free moisture durations of 12-24, 6-12, and 6-12 hr were necessary for blighting of unopen florets, open florets, and immature seed capsules, respectively, by each pathogen at 21 C. A positive correlation between the amount of July rainfall and the natural incidence of onion flower blight was observed in Orange County, New York, from 1976 to 1981. 10 references, 2 figures, 1 table.</abstract><cop>St. Paul, MN</cop><pub>American Phytopathological Society</pub><doi>10.1094/Phyto-76-612</doi><tpages>5</tpages></addata></record> |
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| source | EZB-FREE-00999 freely available EZB journals; American Phytopathological Society Journal Back Issues |
| subjects | 510100 - Environment, Terrestrial- Basic Studies- (-1989) 550900 - Pathology Allium cepa AMBIENT TEMPERATURE BASIC BIOLOGICAL SCIENCES Biological and medical sciences blight Botrytis allii Botrytis cinerea DISEASES ENVIRONMENTAL EFFECTS ENVIRONMENTAL SCIENCES FOOD Fundamental and applied biological sciences. Psychology Fungal plant pathogens FUNGI GROWTH HERBS infection MOISTURE ONIONS PATHOGENS Pathology, epidemiology, host-fungus relationships. Damages, economic importance Phytopathology. Animal pests. Plant and forest protection PLANT GROWTH PLANTS Sclerotinia squamosa temperature VEGETABLES water content |
| title | role of temperature and free moisture in onion flower blight |
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