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Relevant bibliographies by topics / Pythium. Corn

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Academic literature on the topic 'Pythium. Corn'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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Journal articles on the topic "Pythium. Corn"

1

Zhang, B. Q., and X. B. Yang. "Pathogenicity of Pythium Populations from Corn-Soybean Rotation Fields." Plant Disease 84, no. 1 (2000): 94–99. http://dx.doi.org/10.1094/pdis.2000.84.1.94.

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Corn and soybean have been rotated for decades in the north central regions of the United States, but it is unknown how the use of long-term rotation affects the population of soilborne fungi pathogenic to both crops. Pythium populations were obtained from 73 commercial corn-soybean rotation fields in Iowa from 1993 to 1995. A total of 163 Pythium isolates were obtained from soil, diseased soybean seedlings, or diseased corn seedlings, and these isolates were pooled into six populations according to the source of samples. The isolates were evaluated for their aggressiveness on corn and soybean

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2

Broders, K. D., P. E. Lipps, P. A. Paul, and A. E. Dorrance. "Characterization of Pythium spp. Associated with Corn and Soybean Seed and Seedling Disease in Ohio." Plant Disease 91, no. 6 (2007): 727–35. http://dx.doi.org/10.1094/pdis-91-6-0727.

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Cool, moist conditions in combination with minimum tillage, earlier planting, and recent shifts in commercial fungicide seed-treatment active ingredients have led to an increase in corn (Zea mays) and soybean (Glycine max) seedling establishment problems. This situation resulted in an investigation of Pythium spp. associated with seed and seedling diseases. Samples of diseased corn and soybean seedlings were collected from 42 production fields in Ohio. All isolates of Pythium recovered were identified to species using morphological and molecular techniques and evaluated in an in vitro pathogen

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3

Coffua, Lauren S., S. Tyler Veterano, Steven J. Clipman, Jorge I. Mena-Ali, and Jaime E. Blair. "Characterization of Pythium spp. Associated with Asymptomatic Soybean in Southeastern Pennsylvania." Plant Disease 100, no. 9 (2016): 1870–79. http://dx.doi.org/10.1094/pdis-11-15-1355-re.

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Soybean production in Pennsylvania has increased substantially over the past 20 years and is a highly valued field crop, together with corn. Soilborne pathogens such as Pythium spp. can contribute to soybean stand establishment issues, particularly under the conservation tillage practices that are common in the state. In this study, we collected soil samples from eight asymptomatic soybean-corn rotation fields across six counties in southeastern Pennsylvania between May and June 2012. Pythium spp. were isolated via baiting, and tested for aggressiveness on both soybean and corn using laborator

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4

Radmer, L., G. Anderson, D. M. Malvick, J. E. Kurle, A. Rendahl, and A. Mallik. "Pythium, Phytophthora, and Phytopythium spp. Associated with Soybean in Minnesota, Their Relative Aggressiveness on Soybean and Corn, and Their Sensitivity to Seed Treatment Fungicides." Plant Disease 101, no. 1 (2017): 62–72. http://dx.doi.org/10.1094/pdis-02-16-0196-re.

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Pythium spp. cause seed decay, damping-off, and root rot in soybean and corn; however, their diversity and importance as pathogens in Minnesota are unknown. Our objectives were to identify the Pythium spp. present in Minnesota soybean fields, determine their aggressiveness on corn and soybean, and investigate their sensitivity to seed treatment fungicides. For identification, sequences obtained using internal transcribed space ITS4 and ITS1 primers were compared with reference sequences in the National Center for Biotechnology Information database. Seedling and soil samples yielded over 30 oom

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5

Mao, W., R. B. Carroll, and D. P. Whittington. "Association of Phoma terrestris, Pythium irregulare, and Fusarium acuminatum in Causing Red Root Rot of Corn." Plant Disease 82, no. 3 (1998): 337–42. http://dx.doi.org/10.1094/pdis.1998.82.3.337.

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Greenhouse and field tests were conducted in 1992 and 1993 to determine the causal pathogen(s) of red root rot (RRR) of corn. Corn hybrids Dekalb DK 522, DK 572, DK 677, and DK 582 were utilized. Phoma terrestris, Pythium irregulare, and Fusarium acuminatum were used alone or in combination to infest potting mix in greenhouse tests or soil in field tests. Results indicated that P. terrestris is the primary pathogen in the RRR complex of corn in Delaware. When P. terrestris and Pythium irregulare were associated, the disease progressed faster and was more severe, resulting in significantly high

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6

Dorrance, A. E., S. A. Berry, and P. E. Lipps. "Characterization of Pythium spp. from Three Ohio Fields for Pathogenicity on Corn and Soybean and Metalaxyl Sensitivity." Plant Health Progress 5, no. 1 (2004): 10. http://dx.doi.org/10.1094/php-2004-0202-01-rs.

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Pythium spp. were baited with corn and soybean seed from soils collected from three locations in Ohio where soybean and corn stand establishment was a concern. Five species, P. catenulatum, P. irregulare, P. paroecandrum, P. splendens, and P. torulosum, were recovered and a subset of these isolates was then tested for pathogenicity on corn and soybean seed and sensitivity to the seed treatment fungicide metalaxyl. There was a range of both pathogenicity and sensitivity to metalaxyl within and among the Pythium spp. recovered from the three locations. A more thorough evaluation of the Pythium p

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7

Tsukiboshi, T., K. Sugawara, and A. Masunaka. "First Report of Pythium Root and Stalk Rot of Forage Corn Caused by Pythium arrhenomanes in Japan." Plant Disease 98, no. 8 (2014): 1155. http://dx.doi.org/10.1094/pdis-01-14-0059-pdn.

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Corn (Zea mays L.) is the most important forage crop in Japan. It was cultivated on 92,000 ha in 2011 and was mainly used as whole crop silage for cattle feed. In September 2009, a root and stalk rot disease was detected on corn plants cultivated in Tochigi, located in the central region of Japan. The symptoms of the disease included wilting of whole plants after the R5 (dent) stage (2) with drooping ears. Roots turned black and their number decreased. Further, the stalks became hollow and soft and harbored white hyphae. This tissue deterioration made machine harvest difficult. We obtained sev

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8

Deep, I. W., and P. E. Lipps. "Recovery of Pythium arrhenomanes and its virulence to corn." Crop Protection 15, no. 1 (1996): 85–90. http://dx.doi.org/10.1016/0261-2194(95)00120-4.

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9

Matthiesen, R. L., A. A. Ahmad, and A. E. Robertson. "Temperature Affects Aggressiveness and Fungicide Sensitivity of Four Pythium spp. that Cause Soybean and Corn Damping Off in Iowa." Plant Disease 100, no. 3 (2016): 583–91. http://dx.doi.org/10.1094/pdis-04-15-0487-re.

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Damping off of soybean and corn, caused by Pythium spp., is favored by cool temperatures and wet soil conditions and is primarily managed using fungicide seed treatments. The goal of this research was to determine the effect of temperature on aggressiveness and fungicide sensitivity of Pythium spp. recovered from soybean and corn in Iowa. A total of 21 isolates of four of the most prevalent Pythium spp. in Iowa were screened. Seed and seedling assays were used to quantify the aggressiveness of P. lutarium, P. oopapillum, P. sylvaticum, and P. torulosum on soybean and corn at 13, 18, and 23°C.

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10

Kageyama, Koji, and Eric B. Nelson. "Differential Inactivation of Seed Exudate Stimulation of Pythium ultimum Sporangium Germination by Enterobacter cloacae Influences Biological Control Efficacy on Different Plant Species." Applied and Environmental Microbiology 69, no. 2 (2003): 1114–20. http://dx.doi.org/10.1128/aem.69.2.1114-1120.2003.

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ABSTRACT This study was initiated to understand whether differential biological control efficacy of Enterobacter cloacae on various plant species is due to differences in the ability of E. cloacae to inactivate the stimulatory activity of seed exudates to Pythium ultimum sporangium germination. In biological control assays, E. cloacae was effective in controlling Pythium damping-off when placed on the seeds of carrot, cotton, cucumber, lettuce, radish, tomato, and wheat but failed to protect corn and pea from damping-off. Seeds from plants such as corn and pea had high rates of exudation, wher

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Dissertations / Theses on the topic "Pythium. Corn"

1

Broders, Kirk Dale. "Seed and Seedling Disease of Corn and Soybean in Ohio: The Role of Fusarium graminearum, Pythium species diversity, fungicide sensitivity, Pythium community composition, and soil properties in disease severity." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1228096392.

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Books on the topic "Pythium. Corn"

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James, Robert L. Effects of a 2-year fallow period on soil populations of Fusarium, Trichoderma and Pythium species after incorporating corn plant residues: USDA Forest Service Nursery, Coeur d'Alene, Idaho. U.S. Dept. of Agriculture, Forest Service, Northern Region, 2000.

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2

James, Robert L. Effects of a 2-year fallow period on soil populations of Fusarium, Trichoderma and Pythium species after incorporating corn plant residues: USDA Forest Service Nursery, Coeur d'Alene, Idaho. U.S. Dept. of Agriculture, Forest Service, Northern Region, 2000.

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Book chapters on the topic "Pythium. Corn"

1

Soytong, Kasem, Somdej Kahonokmedhakul, Jiaojiao Song, and Rujira Tongon. "Chaetomium Application in Agriculture." In Technology in Agriculture [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99402.

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Chaetomium species for plant disease control are reported to be antagonize many plant pathogens. It is a new broad spectrum biological fungicide from Chaetomium species which firstly discovered and patented No. 6266, International Code: AO 1 N 25/12, and registered as Ketomium® mycofungicide for plant disease control in Thailand, Laos, Vietnam, Cambodia and China. Chaetoimum biofungicide and biostimulants are applied to implement integrated plant disease control. It showed protective and curative effects in controlling plant disease and promoting plant growth. It has been successfully applied to the infested soils with integrated cultural control for the long-term protection against rice blast (Magnaporte oryzae), durian and black Pepper rot (Piper nigram L.) (Phytophthora palmivora), citrus rot (Phytophthora parasitica) and strawberry rot (Fragaria spp.) caused by Phytophthora cactorum, wilt of tomato (Fusarium oxysporum f. sp. lycopersici), basal rot of corn (Sclerotium rolfsii) and anthracnose (Colletotrichum spp.) etc. Further research is reported on the other bioactive compounds from active strains of Chaetomium spp. We have discovered various new compounds from Ch. globosum, Ch. cupreum, Ch. elatum, Ch. cochliodes, Ch. brasiliense, Ch. lucknowense, Ch. longirostre and Ch. siamense. These new compounds are not only inhibiting human pathogens (anti-malaria, anti-tuberculosis, anti-cancer cell lines and anti-C. albicans etc) but also plant pathogens as well. These active natural products from different strains of Chaetomium spp. are further developed to be biodegradable nanoparticles from active metabolites as a new discovery of scientific investigation which used to induce plant immunity, namely microbial degradable nano-elicitors for inducing immunity through phytoalexin production in plants e.g. inducing tomato to produce alpha-tomaline against Fusarium wilt of tomato, capsidiol against chili anthracnose, sakuranitin and oryzalexin B against rice blast, scopletin and anthrocyaidin against Phytophthora or Pythium rot Durian and scoparone against Phytophthora or Pythium rot of citrus. Chaetomium biofungicide can be applied instead of toxic chemical fungicides to control plant diseases.

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