Registration of Soybean Germplasm SS93‐6012 and SS93‐6181 Resistant to Phomopsis Seed Decay

Pathan, M. S.; Clark, Kerry; Wrather, J. A.; Sciumbato, G. L.; Shannon, J. Grover; Nguyen, Henry T.; Sleper, D. A.

doi:10.3198/jpr2008.01.0002crg

Cited by 22 publications

(15 citation statements)

References 11 publications

(23 reference statements)

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“…For example, germplasm genotypes MO/PSD-0259 (Minor et al 1993), SS 93-6012, and SS 93-6181 (Pathan et al 2009) were shown to be resistant to Phomposis sp. in Missouri.…”

Section: Introductionmentioning

confidence: 97%

Soybean Seed Composition Constituents as Affected by Drought andPhomopsisin Phomopsis Susceptible and Resistant Genotypes

Bellaloui

Mengistu

Fisher

et al. 2012

Journal of Crop Improvement

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The objective of this research was to evaluate the effect of drought and Phomopsis on seed composition constituents in Phomopsis susceptible (S), moderately resistant (MR), and resistant (R) soybean genotypes grown under irrigated and non-irrigated environments. Genotypes of maturity group (MG) III and V were grown under field conditions in 2003 and 2005. Seed protein, oil, fatty acids, sugars, and minerals were evaluated in seeds harvested at harvest maturity (R8) and 15 days after harvest maturity (delayed harvesting). The results showed that seed protein and oleic acid were higher in S than in MR or R genotypes at 15 days after harvest maturity in MG III in non-irrigated soybean. For MG V genotypes, seed protein, oil, and oleic acid were higher and linoleic and linolenic acids were lower in MR and R than in S in irrigated 429 and non-irrigated soybean at harvest maturity and 15 days after harvest maturity. In MG III genotypes, seed sucrose, raffinose, and stachyose were higher in MR and R than in S genotypes in irrigated soybean at maturity only. In irrigated or non-irrigated soybean, seed sucrose, raffinose, and stachyose were higher in R than in MR or in S in MG V in 2003 and 2005 at harvest maturity or 15 days after harvest maturity. Seed minerals were also altered in MG III and V. This research demonstrated that seed composition components were altered by drought and Phomopsis and the degree of alteration depended on the level of resistance of the genotype and MG.

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“…For example, germplasm genotypes MO/PSD-0259 (Minor et al 1993), SS 93-6012, and SS 93-6181 (Pathan et al 2009) were shown to be resistant to Phomposis sp. in Missouri.…”

Section: Introductionmentioning

confidence: 97%

Soybean Seed Composition Constituents as Affected by Drought andPhomopsisin Phomopsis Susceptible and Resistant Genotypes

Bellaloui

Mengistu

Fisher

et al. 2012

Journal of Crop Improvement

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“…from PI 200501 and 'Arksoy' (Gizlice et al, 1994). MO/ PSD-0259 was used to develop SS93-6012 and SS93-6181, both with good PSD resistance (Wrather et al, 2003(Wrather et al, , 2004Pathan et al, 2009). Smith et al (2008b) showed that PI 80837, PI 417479, and PI 360841 had ≤15% seed infection by P. longicolla.…”

Section: Introductionmentioning

confidence: 99%

“…In Missouri and Nebraska fi eld trials, both MO/ PSD-0259 and PI 417479 expressed (0−6% incidence) of PSD (Elmore et al (1998) and Minor et al, 1993). MO/ PSD-0259 was used to develop SS93-6012 and SS93-6181, both with good PSD resistance (Wrather et al, 2003(Wrather et al, , 2004Pathan et al, 2009). The inheritance of resistance in PI 80837 and MO/PSD-0259 was reported to be conditioned by single dominant genes (Jackson et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Irrigation and Time of Harvest Effects on Evaluation of Selected Soybean Accessions Against Phomopsis longicolla

et al. 2010

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Phomopsis seed decay (PSD) of soybean (Glycine max L. Merr) is primarily caused by Phomopsis longicolla. Currently, percent seed infection is used as a method for evaluating resistance to PSD. However, researchers need a common system for classifying soybean genotypes for their reaction to P.longicolla that is consistent across environments. The purpose of this research was: (i) to evaluate the reaction of a select set of soybean accessions to P. longicolla, and (ii) determine the effects of irrigation and two harvest regimes (normal and delayed) on seed infection. We propose a classification system for comparing reactions to P. longicolla among accessions based on a Phomopsis seed infection index (PSII), derived by dividing the percent seed infection of each accession by percent seed infection values of susceptible standards selected within early and late maturity groups. Percent seed infection by P. longicolla infection was greater when accessions were irrigated during the growing season and harvested at normal maturity. Some lines such as MO/PSD‐0259 were rated as resistant to P. longicolla (7% seed infection) when not irrigated and harvested at maturity, but were rated as susceptible (39% seed infection) with irrigation and delayed harvest. The resistance ratings to P. longicolla using percent seed infection and PSII varied among accessions. SS93–6012, for example, had similar ratings for both (9% seed infection and 16% PSII). PI 416942 exhibited some resistance to P. longicolla based on percent seed infection (8%), but no resistance based on PSII (32%). Accessions PI 594478, Delmar, SS93–6012, SS93–6181, PI 594603A, and PI 594712 were classified by PSII as moderately resistant under irrigation and with delayed harvest. These results indicate that simple comparisons of percent seed infection among accessions without irrigation, without delayed harvest, and without a standard control of a similar maturity group might result in false conclusions about resistance to P. longicolla.

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“…These include rotating soybeans with non-legume crops, such as corn or wheat, which are not hosts for the fungus, treating seeds with fungicides or applying fungicides during pod-fill, tilling the soil to disrupt spore dissemination, and harvesting mature seeds promptly. Along with these strategies, the use of resistant cultivars is the most effective method for controlling PSD (Jackson et al, 2005;Pathan et al, 2009;Roy et al, 1994), especially when environmental conditions are conducive for disease development.…”

Section: Disease Managementmentioning

confidence: 99%

Phomopsis Seed Decay of Soybean

Li¹

2011

Soybean - Molecular Aspects of Breeding

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Registration of Soybean Germplasm SS93‐6012 and SS93‐6181 Resistant to Phomopsis Seed Decay

Cited by 22 publications

References 11 publications

Soybean Seed Composition Constituents as Affected by Drought andPhomopsisin Phomopsis Susceptible and Resistant Genotypes

Soybean Seed Composition Constituents as Affected by Drought andPhomopsisin Phomopsis Susceptible and Resistant Genotypes

Irrigation and Time of Harvest Effects on Evaluation of Selected Soybean Accessions Against Phomopsis longicolla

Phomopsis Seed Decay of Soybean

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