Inheritance of resistance to root rot of tobacco caused by Thielaviopsis basicola (Berk and Br) Ferr

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dc.contributor.authorKhan, Shamshad Akhtaren
dc.contributor.departmentAgronomyen
dc.date.accessioned2022-05-24T17:21:53Zen
dc.date.available2022-05-24T17:21:53Zen
dc.date.issued1953en
dc.description.abstractThe inheritance of resistance to black root rot in tobacco, caused by the fungus Thielaviopsis basicola (Bek. and Br.) Ferr., was studied with a view of developing higher resistance by combining genes from various sources. The studies were conducted under greenhouse conditions during the winter and summer seasons of 1951-52. The five parental lines, the F₁ hybrids between them and five of the F₂ populations were included in the winter study when the temperature averaged between 65° and 70° F. The five parental varieties, all of F₁, F₂, and the backcross populations were included in the summer study when the temperature could not be controlled in the greenhouse. The evaluation of resistance was done on the basis of visible damage to the roots of the seedling plants.en
dc.description.degreeM.S.en
dc.format.extent49 leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/110263en
dc.language.isoenen
dc.publisherVirginia Polytechnic Instituteen
dc.relation.isformatofOCLC# 24773722en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1953.K536en
dc.subject.lcshRoot rotsen
dc.subject.lcshTobaccoen
dc.titleInheritance of resistance to root rot of tobacco caused by Thielaviopsis basicola (Berk and Br) Ferren
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineAgronomyen
thesis.degree.grantorVirginia Polytechnic Instituteen
thesis.degree.levelmastersen
thesis.degree.nameM.S.en

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