Integrated Management Strategies for Phytophthora sojae Combining Host Resistance and Seed Treatments.
Identifieur interne : 001A83 ( Main/Exploration ); précédent : 001A82; suivant : 001A84Integrated Management Strategies for Phytophthora sojae Combining Host Resistance and Seed Treatments.
Auteurs : A E Dorrance ; A E Robertson [États-Unis] ; S. Cianzo [États-Unis] ; L J Giesler ; C R Grau ; M A Draper ; A U Tenuta ; T R AndersonSource :
- Plant disease [ 0191-2917 ] ; 2009.
Abstract
Phytophthora sojae has re-emerged as a serious soybean pathogen in the past decade. This may be due in part to changes in resistance levels in current cultivars, adoption of P. sojae populations to deployed Rps genes, and highly favorable environments in the past decade. This multilocation study evaluated the effect of seed treatments on the incidence and severity of Phytophthora root and stem rot on soybeans with different combinations of Rps genes and levels of partial resistance. The efficacy of the seed treatments was highly variable across locations. Seed treatments (metalaxyl and mefenoxam) provided protection and increased yields across cultivars in locations where rain or irrigation occurred shortly after planting (Ohio, South Dakota, and Ontario). However, there were no significant differences in stand or yield consistently across cultivars in Iowa, Nebraska, Wisconsin, or Ohio, where heavy precipitation did not occur until later growth stages. The environment, levels of inoculum, and pathogen complex may have played a role in the different responses to the seed treatments and to the different combinations of Rps genes and levels of partial resistance to P. sojae in the cultivars. Fields that are poorly drained and have P. sojae populations with complex pathotypes may benefit the most from seed treatments. Individual fields where producers may see the greatest benefit to utilizing these integrated management strategies will need to be identified.
DOI: 10.1094/PDIS-93-9-0875
PubMed: 30754536
Affiliations:
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Cianzo</name><affiliation wicri:level="4"><nlm:affiliation>Department of Plant Pathology, Iowa State University, Ames 50011-1020.</nlm:affiliation><orgName type="university">Université d'État de l'Iowa</orgName><country>États-Unis</country><placeName><settlement type="city">Ames (Iowa)</settlement><region type="state">Iowa</region></placeName></affiliation></author><author><name sortKey="Giesler, L J" sort="Giesler, L J" uniqKey="Giesler L" first="L J" last="Giesler">L J Giesler</name><affiliation><nlm:affiliation>Department of Plant Pathology, University of Nebraska, Lincoln 68583.</nlm:affiliation><wicri:noCountry code="subField">Lincoln 68583</wicri:noCountry></affiliation></author><author><name sortKey="Grau, C R" sort="Grau, C R" uniqKey="Grau C" first="C R" last="Grau">C R Grau</name><affiliation><nlm:affiliation>Department of Plant Pathology, University of Wisconsin-Madison, Madison 53706-1598.</nlm:affiliation><wicri:noCountry code="subField">Madison 53706-1598</wicri:noCountry></affiliation></author><author><name sortKey="Draper, M A" sort="Draper, M A" uniqKey="Draper M" first="M A" last="Draper">M A Draper</name><affiliation><nlm:affiliation>formerly Plant Science Department, South Dakota State University, Brookings 57007-1090.</nlm:affiliation><wicri:noCountry code="subField">Brookings 57007-1090</wicri:noCountry></affiliation></author><author><name sortKey="Tenuta, A U" sort="Tenuta, A U" uniqKey="Tenuta A" first="A U" last="Tenuta">A U Tenuta</name><affiliation><nlm:affiliation>Ontario Ministry of Agriculture, Food and Rural Affairs, Ridgetown, Ontario, Canada, N0L 2C0.</nlm:affiliation><wicri:noCountry code="subField">N0L 2C0</wicri:noCountry></affiliation></author><author><name sortKey="Anderson, T R" sort="Anderson, T R" uniqKey="Anderson T" first="T R" last="Anderson">T R Anderson</name><affiliation><nlm:affiliation>Agriculture and Agri-Food Canada, Harrow, Ontario, Canada, N0R 1G0.</nlm:affiliation><wicri:noCountry code="subField">N0R 1G0</wicri:noCountry></affiliation></author></analytic><series><title level="j">Plant disease</title><idno type="ISSN">0191-2917</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Phytophthora sojae has re-emerged as a serious soybean pathogen in the past decade. This may be due in part to changes in resistance levels in current cultivars, adoption of P. sojae populations to deployed Rps genes, and highly favorable environments in the past decade. This multilocation study evaluated the effect of seed treatments on the incidence and severity of Phytophthora root and stem rot on soybeans with different combinations of Rps genes and levels of partial resistance. The efficacy of the seed treatments was highly variable across locations. Seed treatments (metalaxyl and mefenoxam) provided protection and increased yields across cultivars in locations where rain or irrigation occurred shortly after planting (Ohio, South Dakota, and Ontario). However, there were no significant differences in stand or yield consistently across cultivars in Iowa, Nebraska, Wisconsin, or Ohio, where heavy precipitation did not occur until later growth stages. The environment, levels of inoculum, and pathogen complex may have played a role in the different responses to the seed treatments and to the different combinations of Rps genes and levels of partial resistance to P. sojae in the cultivars. Fields that are poorly drained and have P. sojae populations with complex pathotypes may benefit the most from seed treatments. Individual fields where producers may see the greatest benefit to utilizing these integrated management strategies will need to be identified.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">30754536</PMID><DateRevised><Year>2019</Year><Month>11</Month><Day>20</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0191-2917</ISSN><JournalIssue CitedMedium="Print"><Volume>93</Volume><Issue>9</Issue><PubDate><Year>2009</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Plant disease</Title><ISOAbbreviation>Plant Dis</ISOAbbreviation></Journal><ArticleTitle>Integrated Management Strategies for Phytophthora sojae Combining Host Resistance and Seed Treatments.</ArticleTitle><Pagination><MedlinePgn>875-882</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1094/PDIS-93-9-0875</ELocationID><Abstract><AbstractText>Phytophthora sojae has re-emerged as a serious soybean pathogen in the past decade. This may be due in part to changes in resistance levels in current cultivars, adoption of P. sojae populations to deployed Rps genes, and highly favorable environments in the past decade. This multilocation study evaluated the effect of seed treatments on the incidence and severity of Phytophthora root and stem rot on soybeans with different combinations of Rps genes and levels of partial resistance. The efficacy of the seed treatments was highly variable across locations. Seed treatments (metalaxyl and mefenoxam) provided protection and increased yields across cultivars in locations where rain or irrigation occurred shortly after planting (Ohio, South Dakota, and Ontario). However, there were no significant differences in stand or yield consistently across cultivars in Iowa, Nebraska, Wisconsin, or Ohio, where heavy precipitation did not occur until later growth stages. The environment, levels of inoculum, and pathogen complex may have played a role in the different responses to the seed treatments and to the different combinations of Rps genes and levels of partial resistance to P. sojae in the cultivars. Fields that are poorly drained and have P. sojae populations with complex pathotypes may benefit the most from seed treatments. Individual fields where producers may see the greatest benefit to utilizing these integrated management strategies will need to be identified.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Dorrance</LastName><ForeName>A E</ForeName><Initials>AE</Initials><AffiliationInfo><Affiliation>Department of Plant Pathology, The Ohio State University, OARDC, Wooster 44691.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Robertson</LastName><ForeName>A E</ForeName><Initials>AE</Initials><AffiliationInfo><Affiliation>Department of Plant Pathology, Iowa State University, Ames 50011-1020.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Cianzo</LastName><ForeName>S</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Department of Plant Pathology, Iowa State University, Ames 50011-1020.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Giesler</LastName><ForeName>L J</ForeName><Initials>LJ</Initials><AffiliationInfo><Affiliation>Department of Plant Pathology, University of Nebraska, Lincoln 68583.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Grau</LastName><ForeName>C R</ForeName><Initials>CR</Initials><AffiliationInfo><Affiliation>Department of Plant Pathology, University of Wisconsin-Madison, Madison 53706-1598.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Draper</LastName><ForeName>M A</ForeName><Initials>MA</Initials><AffiliationInfo><Affiliation>formerly Plant Science Department, South Dakota State University, Brookings 57007-1090.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Tenuta</LastName><ForeName>A U</ForeName><Initials>AU</Initials><AffiliationInfo><Affiliation>Ontario Ministry of Agriculture, Food and Rural Affairs, Ridgetown, Ontario, Canada, N0L 2C0.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Anderson</LastName><ForeName>T R</ForeName><Initials>TR</Initials><AffiliationInfo><Affiliation>Agriculture and Agri-Food Canada, Harrow, Ontario, Canada, N0R 1G0.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Dis</MedlineTA><NlmUniqueID>9882809</NlmUniqueID><ISSNLinking>0191-2917</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2019</Year><Month>2</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>9</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2009</Year><Month>9</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">30754536</ArticleId><ArticleId IdType="doi">10.1094/PDIS-93-9-0875</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Iowa</li></region><settlement><li>Ames (Iowa)</li></settlement><orgName><li>Université d'État de l'Iowa</li></orgName></list><tree><noCountry><name sortKey="Anderson, T R" sort="Anderson, T R" uniqKey="Anderson T" first="T R" last="Anderson">T R Anderson</name><name sortKey="Dorrance, A E" sort="Dorrance, A E" uniqKey="Dorrance A" first="A E" last="Dorrance">A E Dorrance</name><name sortKey="Draper, M A" sort="Draper, M A" uniqKey="Draper M" first="M A" last="Draper">M A Draper</name><name sortKey="Giesler, L J" sort="Giesler, L J" uniqKey="Giesler L" first="L J" last="Giesler">L J Giesler</name><name sortKey="Grau, C R" sort="Grau, C R" uniqKey="Grau C" first="C R" last="Grau">C R Grau</name><name sortKey="Tenuta, A U" sort="Tenuta, A U" uniqKey="Tenuta A" first="A U" last="Tenuta">A U Tenuta</name></noCountry><country name="États-Unis"><region name="Iowa"><name sortKey="Robertson, A E" sort="Robertson, A E" uniqKey="Robertson A" first="A E" last="Robertson">A E Robertson</name></region><name sortKey="Cianzo, S" sort="Cianzo, S" uniqKey="Cianzo S" first="S" last="Cianzo">S. 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