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231225s2006 xx |||||o 00| ||eng c |
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|a 10.1094/PD-90-0597
|2 doi
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|a pubmed24n0980.xml
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|a (DE-627)NLM29406365X
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|a (NLM)30781135
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Kirkpatrick, M T
|e verfasserin
|4 aut
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| 245 |
1 |
4 |
|a The Effect of Pythium ultimum and Soil Flooding on Two Soybean Cultivars
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| 264 |
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|c 2006
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Revised 20.11.2019
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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| 520 |
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|a The effect of flooding and Pythium ultimum on soybean, Glycine max, was determined in a series of greenhouse experiments using the cultivars Hutcheson and Archer. Seeds were planted into pasteurized soil either not infested or infested with sand-cornmeal inoculum of P. ultimum and either flooded at emergence for 2 days or at the four leaf node stage (V4) for 5 days. A nonflooded control was included in each experiment. Seeds placed directly into infested soil resulted in little or no stand for Hutcheson regardless of flood treatment, whereas stand was reduced for Archer only in the flooded infested soil treatment. Additional experiments were conducted by placing seed onto a 2- to 5-mm layer of pathogen-free soil on top of the infested soil. Flooding at emergence reduced plant height, growth stage, and top dry weight for Hutcheson and root fresh weight for both cultivars. Greater reductions for Hutcheson in root weight, and top dry weight in P. ultimum-infested soil in the soil layer experiments, also indicated that Hutcheson was more susceptible than Archer. Flooding alone decreased root weights, and infestation with P. ultimum reduced weights further resulting in an additive effect. This also was the case for plant height, growth stage, and top dry weight for Hutcheson for flooding at emergence. Root discoloration was greatly increased for both cultivars in infested soil flooded at emergence. Similar results were found when plants were flooded at V4; however, the effect was not as great as with flooding at emergence. These studies indicate that Pythium damping-off and root rot may account for a portion of the negative response of soybean to flooding. The results also indicate that Archer has some resistance to P. ultimum
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a soil anoxia
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| 650 |
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4 |
|a soil water
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| 700 |
1 |
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|a Rothrock, C S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rupe, J C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gbur, E E
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 90(2006), 5 vom: 01. Mai, Seite 597-602
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
1 |
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|g volume:90
|g year:2006
|g number:5
|g day:01
|g month:05
|g pages:597-602
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| 856 |
4 |
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|u http://dx.doi.org/10.1094/PD-90-0597
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