P. Tumbalam

Publications14
h-index9
Citations190
Highly Influential Citations13
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Optimizing Fungicide Timing for the Control of Rhizoctonia Crown and Root Rot of Sugar Beet Using Soil Temperature and Plant Growth Stages.
Azoxystrobin is applied early in the sugar beet growing season in north-central United States for control of Rhizoctonia damping-off and Rhizoctonia crown and root rot caused by Rhizoctonia solani… Expand
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First Report of Potato Tuber Sprout Rot Caused by Fusarium sambucinum in Michigan.
Fusarium dry rot is one of the most important diseases of potato (Solanum tuberosum L.), affecting tubers in storage and whole seed or seed pieces after planting (2). Fusarium sambucinum Fuckel… Expand
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Influence of competition and host plant resistance on selection in Phytophthora infestans populations in Michigan, USA and in Northern Ireland
Competition between genotypes of Phytophthora infestans was studied by inoculating potato cultivars with differing susceptibility to late blight in field experiments over three years in Northern… Expand
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Heterokaryotic nuclear conditions and a heterogeneous nuclear population are observed by flow cytometry in Phytophthora infestans
A simple and reliable method for preparation of whole nuclei of a common oomycete, Phytophthora infestans, is described for laser flow cytometry. The ease of preparation, the absence of detectable… Expand
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Evaluation of biological seed treatments in combination with management practices for the control of seed-borne late blight in potato
Abstract Using an effective fungicide in combination with good management practices during seed tuber cutting and storage, prior to planting, is essential to reducing late blight. The efficacy of two… Expand
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First Report of in vitro Fludioxonil-Resistant Isolates of Fusarium spp. Causing Potato Dry Rot in Michigan.
Fusarium dry rot of potato (Solanum tuberosum) is a postharvest disease caused by several Fusarium spp. Dry rot is managed primarily by reducing tuber bruising and promoting rapid wound healing. Dry… Expand
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Seed treatment application-timing options for control of fusarium decay and sprout rot of cut seedpieces
The efficacy of application timings of a commercially formulated mixture of fludioxonil plus mancozeb (Maxim MZ) applied prior to planting for the control of seedpiece decay and rotting of sprouts,… Expand
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First Report of Fusarium torulosum Causing Dry Rot of Seed Potato Tubers in the United States.
Fusarium dry rot of potato (Solanum tuberosum L.) is a postharvest disease caused by several Fusarium species and is of worldwide importance. Thirteen species of Fusarium have been implicated in… Expand
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Impact of Different US Genotypes of Phytophthora infestans on Potato Seed Tuber Rot and Plant Emergence in a Range of Cultivars and Advanced Breeding Lines
Seed pieces of different potato cultivars and advanced breeding lines (ABLs) from north central US breeding programmes were inoculated with different genotypes of Phytophthora infestans (US-1,… Expand
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Corn stover ethanol yield as affected by grain yield, Bt trait, and environment
Abstract Literature values for glucose release from corn stover are highly variable which would likely result in tremendous variability in bio-refinery ethanol yield from corn stover feedstock. A… Expand
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