Selected soybean plant introductions with partial resistance to Sclerotinia sclerotiorum

D. D. Hoffman; B. W. Diers; G. L. Hartman; C. D. Nickell; Randall L Nelson; W. L. Pedersen; E. R. Cober; G. L. Graef; J. R. Steadman; B. D. Nelson; L. E. Del Rio; C. R. Grau; T. Helms; T. Anderson; V. Poysa; I. Rajcan; W. C. Stienstra

doi:10.1094/PDIS.2002.86.9.971

Selected soybean plant introductions with partial resistance to Sclerotinia sclerotiorum

D. D. Hoffman, B. W. Diers, G. L. Hartman, C. D. Nickell, Randall L Nelson, W. L. Pedersen, E. R. Cober, G. L. Graef, J. R. Steadman, B. D. Nelson, L. E. Del Rio, C. R. Grau, T. Helms, T. Anderson, V. Poysa, I. Rajcan, W. C. Stienstra

Research output: Contribution to journal › Article › peer-review

Abstract

Sclerotinia stem rot, caused by Sclerotinia sclerotiorum, is a major soybean (Glycine max) disease in north-central regions of the United States and throughout the world. Current sources of resistance to Sclerotinia stem rot express partial resistance, and are limited in number within soybean germ plasm. A total of 6,520 maturity group (MG) 0 to IV plant introductions (PIs) were evaluated for Sclerotinia stem rot resistance in the United States and Canada in small plots or in the greenhouse from 1995 to 1997. Selected PIs with the most resistance were evaluated for resistance in the United States and Canada in replicated large plots from 1998 to 2000. The PIs in the MG I to III tests in Urbana, IL were evaluated for agronomic traits from 1998 to 2000. The selected PIs also were evaluated with an excised leaf inoculation and petiole inoculation technique. After the 1995 to 1997 evaluations, all but 68 PIs were eliminated because of their susceptibility to Sclerotinia stem rot. In field tests in Urbana, higher disease severity in selected MG I to Ill PIs was significantly (P < 0.05) associated with taller plant heights and greater canopy closure. All other agronomic traits evaluated were not associated or were inconsistently associated with disease severity. MG I to III PIs 153.282, 189.931, 196.157, 398.637, 417.201, 423.818, and 561.331 had high levels of resistance and had canopies similar to the resistant checks. The resistance ratings from the petiole inoculation technique had a high and significant (P < 0.01) correlation with disease severity in the MG I and II field tests. The partially resistant PIs identified in this study can be valuable in incorporating Sclerotinia stem rot resistance into elite germ plasm.

Original language	English (US)
Pages (from-to)	971-980
Number of pages	10
Journal	Plant disease
Volume	86
Issue number	9
DOIs	https://doi.org/10.1094/PDIS.2002.86.9.971
State	Published - Sep 2002

Keywords

Disease evaluation
Soybean germ plasm
Soybean resistance
White mold

ASJC Scopus subject areas

Agronomy and Crop Science
Plant Science

Online availability

10.1094/PDIS.2002.86.9.971

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Hoffman, D. D., Diers, B. W., Hartman, G. L., Nickell, C. D., Nelson, R. L., Pedersen, W. L., Cober, E. R., Graef, G. L., Steadman, J. R., Nelson, B. D., Del Rio, L. E., Grau, C. R., Helms, T., Anderson, T., Poysa, V., Rajcan, I., & Stienstra, W. C. (2002). Selected soybean plant introductions with partial resistance to Sclerotinia sclerotiorum. Plant disease, 86(9), 971-980. https://doi.org/10.1094/PDIS.2002.86.9.971

Hoffman, DD, Diers, BW , Hartman, GL, Nickell, CD, Nelson, RL, Pedersen, WL, Cober, ER, Graef, GL, Steadman, JR, Nelson, BD, Del Rio, LE, Grau, CR, Helms, T, Anderson, T, Poysa, V, Rajcan, I & Stienstra, WC 2002, 'Selected soybean plant introductions with partial resistance to Sclerotinia sclerotiorum', Plant disease, vol. 86, no. 9, pp. 971-980. https://doi.org/10.1094/PDIS.2002.86.9.971

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title = "Selected soybean plant introductions with partial resistance to Sclerotinia sclerotiorum",

abstract = "Sclerotinia stem rot, caused by Sclerotinia sclerotiorum, is a major soybean (Glycine max) disease in north-central regions of the United States and throughout the world. Current sources of resistance to Sclerotinia stem rot express partial resistance, and are limited in number within soybean germ plasm. A total of 6,520 maturity group (MG) 0 to IV plant introductions (PIs) were evaluated for Sclerotinia stem rot resistance in the United States and Canada in small plots or in the greenhouse from 1995 to 1997. Selected PIs with the most resistance were evaluated for resistance in the United States and Canada in replicated large plots from 1998 to 2000. The PIs in the MG I to III tests in Urbana, IL were evaluated for agronomic traits from 1998 to 2000. The selected PIs also were evaluated with an excised leaf inoculation and petiole inoculation technique. After the 1995 to 1997 evaluations, all but 68 PIs were eliminated because of their susceptibility to Sclerotinia stem rot. In field tests in Urbana, higher disease severity in selected MG I to Ill PIs was significantly (P < 0.05) associated with taller plant heights and greater canopy closure. All other agronomic traits evaluated were not associated or were inconsistently associated with disease severity. MG I to III PIs 153.282, 189.931, 196.157, 398.637, 417.201, 423.818, and 561.331 had high levels of resistance and had canopies similar to the resistant checks. The resistance ratings from the petiole inoculation technique had a high and significant (P < 0.01) correlation with disease severity in the MG I and II field tests. The partially resistant PIs identified in this study can be valuable in incorporating Sclerotinia stem rot resistance into elite germ plasm.",

keywords = "Disease evaluation, Soybean germ plasm, Soybean resistance, White mold",

author = "Hoffman, {D. D.} and Diers, {B. W.} and Hartman, {G. L.} and Nickell, {C. D.} and Nelson, {Randall L} and Pedersen, {W. L.} and Cober, {E. R.} and Graef, {G. L.} and Steadman, {J. R.} and Nelson, {B. D.} and {Del Rio}, {L. E.} and Grau, {C. R.} and T. Helms and T. Anderson and V. Poysa and I. Rajcan and Stienstra, {W. C.}",

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doi = "10.1094/PDIS.2002.86.9.971",

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AU - Hoffman, D. D.

AU - Diers, B. W.

AU - Hartman, G. L.

AU - Nickell, C. D.

AU - Nelson, Randall L

AU - Pedersen, W. L.

AU - Cober, E. R.

AU - Graef, G. L.

AU - Steadman, J. R.

AU - Nelson, B. D.

AU - Del Rio, L. E.

AU - Grau, C. R.

AU - Helms, T.

AU - Anderson, T.

AU - Poysa, V.

AU - Rajcan, I.

AU - Stienstra, W. C.

PY - 2002/9

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N2 - Sclerotinia stem rot, caused by Sclerotinia sclerotiorum, is a major soybean (Glycine max) disease in north-central regions of the United States and throughout the world. Current sources of resistance to Sclerotinia stem rot express partial resistance, and are limited in number within soybean germ plasm. A total of 6,520 maturity group (MG) 0 to IV plant introductions (PIs) were evaluated for Sclerotinia stem rot resistance in the United States and Canada in small plots or in the greenhouse from 1995 to 1997. Selected PIs with the most resistance were evaluated for resistance in the United States and Canada in replicated large plots from 1998 to 2000. The PIs in the MG I to III tests in Urbana, IL were evaluated for agronomic traits from 1998 to 2000. The selected PIs also were evaluated with an excised leaf inoculation and petiole inoculation technique. After the 1995 to 1997 evaluations, all but 68 PIs were eliminated because of their susceptibility to Sclerotinia stem rot. In field tests in Urbana, higher disease severity in selected MG I to Ill PIs was significantly (P < 0.05) associated with taller plant heights and greater canopy closure. All other agronomic traits evaluated were not associated or were inconsistently associated with disease severity. MG I to III PIs 153.282, 189.931, 196.157, 398.637, 417.201, 423.818, and 561.331 had high levels of resistance and had canopies similar to the resistant checks. The resistance ratings from the petiole inoculation technique had a high and significant (P < 0.01) correlation with disease severity in the MG I and II field tests. The partially resistant PIs identified in this study can be valuable in incorporating Sclerotinia stem rot resistance into elite germ plasm.

AB - Sclerotinia stem rot, caused by Sclerotinia sclerotiorum, is a major soybean (Glycine max) disease in north-central regions of the United States and throughout the world. Current sources of resistance to Sclerotinia stem rot express partial resistance, and are limited in number within soybean germ plasm. A total of 6,520 maturity group (MG) 0 to IV plant introductions (PIs) were evaluated for Sclerotinia stem rot resistance in the United States and Canada in small plots or in the greenhouse from 1995 to 1997. Selected PIs with the most resistance were evaluated for resistance in the United States and Canada in replicated large plots from 1998 to 2000. The PIs in the MG I to III tests in Urbana, IL were evaluated for agronomic traits from 1998 to 2000. The selected PIs also were evaluated with an excised leaf inoculation and petiole inoculation technique. After the 1995 to 1997 evaluations, all but 68 PIs were eliminated because of their susceptibility to Sclerotinia stem rot. In field tests in Urbana, higher disease severity in selected MG I to Ill PIs was significantly (P < 0.05) associated with taller plant heights and greater canopy closure. All other agronomic traits evaluated were not associated or were inconsistently associated with disease severity. MG I to III PIs 153.282, 189.931, 196.157, 398.637, 417.201, 423.818, and 561.331 had high levels of resistance and had canopies similar to the resistant checks. The resistance ratings from the petiole inoculation technique had a high and significant (P < 0.01) correlation with disease severity in the MG I and II field tests. The partially resistant PIs identified in this study can be valuable in incorporating Sclerotinia stem rot resistance into elite germ plasm.

KW - Disease evaluation

KW - Soybean germ plasm

KW - Soybean resistance

KW - White mold

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ER -

Selected soybean plant introductions with partial resistance to Sclerotinia sclerotiorum

Abstract

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