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| Web URL(s): | http://www.apsnet.org/publications/phytopathology/backissues/Documents/1988Articles/Phyto78n02_127.pdf
Last checked: 10/15/2015
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Kinsbursky, R. S.;
Weinhold, A. R. |
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| Author Affiliation: | Dept. of Plant Pathology, University of Clifornia, Berkeley. |
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| Title: | Influence of Soil on Inoculum Density-Disease Incidence Relationships of Rhizoctonia solani |
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| Source: | Phytopathology. Vol. 78, No. 2, February 1988, p. 172-130. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| Keywords: | TIC Keywords: Soils; Disease resistance; Rhizoctonia solani; Disease control; Soil temperature; Soil moisture
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| Abstract/Contents: | "A method was developed to study inoculum density-disease incidence (ID DI) relationships of Rhizoctonia solani in soil under controlled temperature and moisture conditions. ID-DI relationships were assessed by estimating disease in radish seedlings after 3 days in soil artificially infested with R. solani. There was a significant linear relationship (P = 0.01) between mean number of hypocotyl infections per plant and inoculum density for all soils tested except those in which disease incidence was very low. When 75 soils were compared, disease incidence in radish ranged in a continuum from 0 to 1.52 mean number of hypocotyl infecitons per plant (-/x = 0.51 +/- 0.32). Analysis of variance indicated that sample mean differences were significantly different. Native inoculum densities of these soils ranged from 0 to 35.9 propagules per 100 g. There was no relationship between native inoculum density and DI values of artificially infested soils. A disease suppressive soil was identified, having a high native ID (30.0 propagules per 100 g) and a consistently low infection incidence. Four soils, when given heat treatments of 55 C for 1 hr, had DI values that increased in response to the treatment, the effect being greater in soils with low DI values." |
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| Language: | English |
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| References: | 13 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kinsbursky, R. S., and A. R. Weinhold. 1988. Influence of Soil on Inoculum Density-Disease Incidence Relationships of Rhizoctonia solani. Phytopathology. 78(2):p. 172-130. |
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| Web URL(s):
http://www.apsnet.org/publications/phytopathology/backissues/Documents/1988Articles/Phyto78n02_127.pdf
Last checked: 10/15/2015
Requires: PDF Reader |
| 
MSU catalog number: SB 599 .P48 |
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