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Addressing the relationship between Pseudoperonospora cubensis and P. humuli using phylogenetic analyses and host specificity assays

Creator:: Mitchell, Melanie N.
Abstract:: The two most economically important plant pathogens in the Pseudoperonospora (Peronosporaceae) genus are P. cubensis, causal agent of cucurbit downy mildew, and P. humuli, causal agent of hop downy mildew. These organisms have been shown to be very closely related phylogenetically and morphologically. In 2005, researchers in Korea proposed that...
Resource Type:: Masters Thesis
Full Text:: . Title: Addressing the Relationship Between Pseudoperonospora cubensis and P. humuli using Phylogenetic

Effect of resident epiphytic fungi development of brown rot blossom blight of stone fruits

Creator:: Wittig, Hans P. P.
Abstract:: Antagonistic effects of Epicoccum purpurascens, Aureobasidium pullulans, Trichoderma spp., and Botrytis cinerea on establishment of Monilinia fructicola infections in cherry and peach blossoms were assessed in field and mist chamber studies. Conidia of each fungus were applied to blossoms that were subsequently inoculated with conidia of M fructicola. Mist chamber...
Resource Type:: Masters Thesis
Full Text:: forced cherry blossoms demonstrated that recovery of M. fructicola was significantly reduced (P=.05

Studies on the bacterial gummosis of stone fruits

Creator:: Van Gundia, Gordon Keller
Resource Type:: Masters Thesis
Full Text:: $ J Q . C ) C V " 1 ' i C D o o b - 3 p o J' - J ' - l ' - J ' - a ' . L

An investigation of vegetation : hydrology interactions in watershed 1 at the H.J. Andrews Experimental Forest

Creator:: Bredensteiner, Kim C.
Abstract:: For management purposes, it would be useful to be able to predict streamflow response to forest practices in small, unmonitored basins. The primary objective of this study is to investigate the influence of early successional vegetation on summer streamflow levels. The long-term data records from watershed 1 at the H.J....
Resource Type:: Masters Thesis
Full Text:: Abstract Approved: Ronald P. Neilson For management purposes, it would be useful to be able to predict

Rhizoctonia of the potato

Creator:: Corsaut, Jesse Harrison
Resource Type:: Masters Thesis
Full Text:: ) Bombarory described a Rhizoctonia sp. which was the cause of a disease of asparagus. P. Balliard,(5

The role of Verticillium albo-atrum Reinke and Berth in seed transmission and induction of a latent disease of Pelargonium

Creator:: Koocheki, Hormozdyar Khodadad
Abstract:: Many initially healthy Pelargonium seedlings developed symptoms of Verticillium wilt in an Oregon State University greenhouse when they attained blooming age. The symptoms first appeared in May as "edge burning," yellowing, and wilting of leaves. In late summer, these seedlings which were the offspring of Verticillium infected plants, became severely...
Resource Type:: Masters Thesis
Full Text:: a learned and under- standing director, Dr. Roy A. Young. The writer wishes to thank Dr. Frank P

Peach blight as caused by Coryneum beijerinckii

Creator:: Scherer, Christopher Marion
Resource Type:: Masters Thesis
Full Text:: also the cherries (Pru.nus cerasus Linn and P. aviurn Linn.), and the pliun (P. domestica Lirn

The association of epiphytic macrolichens and bryophytes with riparian stand types along a valley continuum, Oregon Coast Range

Creator:: Ruchty, Andrea M.
Abstract:: I surveyed epiphytic macrolichens and bryophytes in six stands in each of seven riparian stand types in the Oregon Coast Range. This study (Chapter 2) describes the association of epiphytes with stand types and the corresponding potential of forest canopy conversions to affect epiphyte communities. Species composition, diversity, and representation...
Resource Type:: Masters Thesis
Full Text:: Valley Continuum, Oregon Coast Range. Abstract Approved: Bruce P. McCune I surveyed epiphytic

Some crown gall inoculation experiments with special reference to the stomata as possible ports of entry

Creator:: Patty, Frank Alexander
Resource Type:: Masters Thesis
Full Text:: of P. J. hiker, I. E. kelhus, and oters much interest has been stimul,ted towards the subject of

The comparative value of formaldehyde and of various chemical dusts for the control of onion smut

Creator:: Bedwell, Jesse Leonard
Resource Type:: Masters Thesis
Full Text:: , L. H. Famnel and C. M. King of Iowa, I. J. Anderson of Massachusetts, and T. Whitehead of England

ScholarsArchive@OSU

Addressing the relationship between Pseudoperonospora cubensis and P. humuli using phylogenetic analyses and host specificity assays

Effect of resident epiphytic fungi development of brown rot blossom blight of stone fruits

Studies on the bacterial gummosis of stone fruits

An investigation of vegetation : hydrology interactions in watershed 1 at the H.J. Andrews Experimental Forest

Rhizoctonia of the potato

The role of Verticillium albo-atrum Reinke and Berth in seed transmission and induction of a latent disease of Pelargonium

Peach blight as caused by Coryneum beijerinckii

The association of epiphytic macrolichens and bryophytes with riparian stand types along a valley continuum, Oregon Coast Range

Some crown gall inoculation experiments with special reference to the stomata as possible ports of entry

The comparative value of formaldehyde and of various chemical dusts for the control of onion smut

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