THE EFFECT OF SOIL MOISTURE ON <i>FUSARIUM</i> SPECIES

Stover, R. H.

doi:10.1139/b53-050

Cited by 31 publications

(18 citation statements)

References 0 publications

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“…Fusarium incidence decreased from 70% to 56% as watering amount increased from 5% to 12%. This result supports our field observations and also confirms previous reports that well-drained and dry soil favor Fusarium survival and multiplication (Cook and Papendick 1972;Stover 1953;Tan et al 2002;Wong et al 1984).Root dry weight was not different between soil sources (p = 0.19) but increased with increasing watering intensity (p < 0.01) (table 3). Root length was different between the two cultivars, and there was a significant cultivar × soil source interaction.…”

supporting

confidence: 93%

“…This may be due to earlier planting or because the drier soils in 2012 favored Fusarium spp. survival (Cook and Papendick 1972;Stover 1953). Across the drainage treatments, Fusarium isolation ranged from 35% to 92% of the roots in 2012, and 16% to 59% in 2013.…”

Section: Resultsmentioning

confidence: 99%

“…This study also supports that the well-drained soils favor survival and multiplication of Fusarium spp. (Cook and Papendick 1972;Stover 1953;Tan et al 2002;Wong et al 1984).Drainage treatments in the field were not significantly different for root dry weight, total root length, average root diameter, and root tips number in 2013 (table 1).Greenhouse Experiments. Main effects of soil source and cultivars were not significant for root rot severity in the greenhouse (p = 0.70; p = 0.11), but the soil source × cultivar interaction was significant (p < 0.01).…”

mentioning

confidence: 93%

“…Fusarium spp. are more active and survive best in dry soil compared to wet soil and, therefore, cause more root disease when soil moisture is not high (Cook and Papendick 1972;Stover 1953;Wong et al 1984 Each block consisted of four drainage treatments. These two blocks were analyzed as one experiment considering blocks as replications.…”

mentioning

confidence: 99%

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Influence of drainage on soybean seedling health

Han¹,

Kandel²,

Leandro³

et al. 2017

Journal of Soil and Water Conservation

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Subsurface tile drainage is a commonly used agricultural practice in Iowa croplands. Little is known about the effect of drainage on soybean (Glycine max) disease. Field and greenhouse studies were conducted to study the effect of drainage on seedling health. A field experiment was conducted at the Iowa State University research farm near Crawfordsville, Iowa, in 2012 and2013 (ND, no artificial drainage). A greenhouse experiment was conducted three times to compare two soil sources (ND and CvD soil from the field experiment), two soybean cultivars (Ripley and Williams 82), and three watering intensities (low, moderate, and saturated). Plants were sampled at the second trifoliate stage to assess root rot severity, root dry weight, root size, and Fusarium spp. incidence in roots. In the field, root rot severity was significantly (p < 0.01) greater in the ND and SD drainage treatments than in the CvD treatment in 2013 but not in 2012. Fusarium spp. were isolated less frequently from roots grown in ND soil than all other drainage treatments, in both years. In the greenhouse study, watering intensity significantly affected root rot on Ripley, with more water causing more root rot (p < 0.01). Despite greater rot, roots showed increased root weight, root length, root diameter, and number of root tips with increasing soil water up to saturation for both varieties. Fusarium incidence decreased as water amount increased. In summary, fields with high moisture are more prone to root rot, but well-drained soil favors infection of soybean roots by Fusarium spp. Key words: drainage-Fusarium spp.-root rot-soybeanAmple water supply is essential for plant growth; however, excessively wet soils cause several problems including inadequate soil oxygen (O 2 ) supply, reduced nutrient uptake, poor root growth, inadequate nodulation, and decreased photosynthesis, resulting in reduced foliage that ultimately impacts yield (Linkemer et al. 1998). Soybean (Glycine max L.) germination and emergence is favored in well-aerated soils (Pavelis 1987). Additionally, lower soil moisture increases soil trafficability, which can lead to earlier planting and germination, which potentially protect plants from possible later season water deficiency (Bornstin and Hedstrom 1982;Mayhew and Caviness 1994;Mengistu and Heatherly 2006). Subsurface drainage covers 12% of the agriculture land in the United States and accounts for 3.6 × 10 6 ha (8.9 × 10 6 ac) of cropland in Iowa (Baker et al. 2004;Evans and Fausey 1999; Garrison et al. 1999;Linkemer et al. 1998). Subsurface drainage is one of the most valuable practices to protect the crops as it can remove excess water after a heavy rain or over irrigation from the upper portions of the active root zone. The benefits of drainage include (1) removing excessive water that accumulated below the surface and therefore creating a well-aerated soil condition that favors soybean germination (Evans and Fausey 1999;Pavelis 1987;Tyagi and Tripathi 1983); (2) increasing trafficability by facilitating heavy ...

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supporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 93%

mentioning

confidence: 99%

See 2 more Smart Citations

Influence of drainage on soybean seedling health

Han¹,

Kandel²,

Leandro³

et al. 2017

Journal of Soil and Water Conservation

View full text Add to dashboard Cite

show abstract

“…Also in the later experiments, Mn"O, may have been formed first, then changes in the environmental conditions may have encouraged the fungus to produce some acid. Bricker (1965) (Hem 1963;Morgan 1967 Stover (1953) also observed that species of Cephalosporium were highly tolerant of wet conditions. Other workers (Boswell and Sheldon 1951;Dickinson and Dooley 1967) found a very high frequency of Cephalo'sporium in acid organic soils.…”

Section: Hay Infusion Methodsmentioning

confidence: 98%