Results 161 to 170 of about 3,815,998 (193)

Meteorological and Agronomic Factors Analysis on the Field-Level Incidence of Red Crown Rot of Soybean

Phytopathology®
In red crown rot (RCR) of soybean, the pathogen Calonectria ilicicola can infect soybean plants as early as 2 weeks after sowing. However, symptoms tend to manifest themselves after the flowering stage. Various meteorological and agronomic factors have been thought to influence the progression from infection to symptom onset over several months.
Sunao Ochi, Shigeki Kishi, Akira Kawaguchi, Hajime Akamatsu   +3 more
openaire   +1 more source

Evaluation of Fungicides Applied to Early Vegetative-Stage Soybean for Red Crown Rot Control

Plant Health Progress
Red crown rot (RCR) of soybean, caused by Calonectria ilicicola, is a significant soilborne disease that typically manifests itself during the flowering stages. Although seed treatments have been employed for RCR control, no method has been developed to provide protection throughout the entire soybean cultivation period.
Genki Mimuro, Chisato Yamamoto, Sunao Ochi   +2 more
openaire   +1 more source

Identification and activity of a phytotoxin produced byCalonectria ilicicola, the causal agent of soybean red crown rot

Canadian Journal of Plant Pathology, 2011
Abstract A phytotoxin isolated from Calonectria ilicicola, the causal agent of soybean red crown rot, was identified as PF1070A, a cyclic peptide consisting of four amino acids. This compound is known as an antitumour antibiotic and to induce synthesis of metallothionein in mouse Ltk- cells. We tested PF1070A against three soybean cultivars that differ
Sunao Ochi, Mitsuru Yoshida, Akio Nakagawa, Masahiro Natsume   +3 more
openaire   +1 more source

First Report of Red Crown Rot of Soybean Caused by Calonectria ilicicola in Minnesota

Plant Disease
Soybean plants (Glycine max L.) with symptoms and signs of red crown rot were observed in approximately 20% of plants in a 3 ha section of a large production field in Rock County, Minnesota in August 2025. The symptoms and signs included interveinal necrosis on the leaves, root rot, and reddish discoloration and raised red to brown perithecia on the ...
Dean Malvick, Crystal Marie Floyd, José E. Solórzano, Brett Arenz   +3 more
openaire   +1 more source

Red clover response to Fusarium oxysporum and F. solani, causal agents of crown and root eots

Zentralblatt für Mikrobiologie, 1992
Summary Similarity of progeny reaction to mother strain reaction in red clover (Trifolium pratense) inoculated with the pathogenic fungi Fusarium oxysporum and F. solani, causal agents of red clover crown and root diseases, was studied. Transfer of resistance was investigated in 220 populations of 47 mother strains of the tentative cultivar, HŽ-V, of
Eva Kováčiková, V. Jarošík
openaire   +1 more source

Nodulation during vegetative growth of soybean stage does not affect the susceptibility to red crown rot caused by Calonectria ilicicola

Journal of General Plant Pathology, 2007
Soybean cultivar Enrei and its derivative lines, non-nodulating En1282 and supernodulating Sakukei 4, were grown in an experiment field naturally infested with the red crown rot fungus, Calonectria ilicicola, to determine whether nodulation elicits the disease.
Junko Tazawa, Motoki Takahashi, Kazuei Usuki, Hiroyuki Yamamoto   +3 more
openaire   +1 more source

Resistance of Red Maple and Freeman Maple Cultivars to Phytopythium vexans, a Causal Agent of Root and Crown Rot Disease

Plant Disease
Phytopythium root rot caused by Phytopythium vexans is an emerging threat to red maple and Freeman maple production that seriously impacts plant growth, aesthetic, and economic values. This study reports on the resistance of red maple and Freeman maple cultivars against root rot disease caused by P. vexans.
Madhav Parajuli, Kumuditha Hikkaduwa Epa Liyanage, Prabha Liyanapathiranage, Cansu Oksel, Fulya Baysal-Gurel   +4 more
openaire   +2 more sources

An investigation of the taxonomy and distribution Stagonospora meliloti and Acrocalymma medicaginis, fungi implicated in red-crown rot of lucerne, Medicago sativa

2021
This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
openaire   +1 more source

Low diversity of isolates of Calonectria ilicicola , the causal agent of red crown rot of soybean, detected across Illinois

Plant Disease
Red crown rot (RCR) of soybean, caused by Calonectria ilicicola, is new to the Midwest region of the United States, first identified in 2018 in western Illinois, and later in the neighboring states of Kentucky (2021), Indiana (2022) and Missouri (2024).
Steve, Clough, Theresa K, Herman, Nancy, McCoppin, Hari, Karki, Carl, Bradley, Boris Xavier, Camiletti   +5 more
openaire   +2 more sources

Cios1, Cios4 and Cios5 Modulate Temperature-Dependent Growth and Fludioxonil Resistance in Calonectria Ilicicola, Causing Soybean Red Crown Rot

Pesticide Biochemistry and Physiology
Calonectria ilicicola causes soybean red crown rot (RCR), along with premature leaf aging, early defoliation, and necrosis, leading to seriously losses of yield and quality worldwide. Fludioxonil (Flu), a phenylpyrrole fungicide with a broad spectrum and high activity against phytopathogenic fungi.
Xiujuan, Li, Shuzhou, Liu, Shuai, Xie, Hao, Hu, Guo, Li, Bin, Chen, Jiawei, Li, Lingling, Wei, Wenchan, Chen, Xiushi, Song, Wenyong, Shao, Changjun, Chen   +11 more
openaire   +2 more sources