Results 161 to 170 of about 1,110 (183)

Understanding and enhancing rice resistance to false smut disease

Journal of Genetics and Genomics
Flower-infecting fungi have caused many economically important diseases in crop production. The fungal pathogen Ustilaginoidea virens infects developing rice florets, causing false smut disease, which leads to reduced grain yield and quality, as well as contamination with mycotoxins that pose hazards to human health and food security.
De-Qiang Li, Xiao-Ling Liu, Meng Yuan, Wenxian Sun, Jian-Min Zhou, Wen-Ming Wang, Jing Fan   +6 more
openaire   +2 more sources

Management of false smut of rice with new fungicidal molecules

Advances in Applied Research, 2016
Field experiments were carried out during thaladi season of 2012 - 2013 and 2013 - 2014 at Tamil Nadu Rice Research Institute, Aduthurai, Thanjavur, to study the effect of new fungicidal molecules on the false smut disease (Ustilaginoidea virens), incidence of rice. Foliar spray of Trifloxystrobin 25% + Tebuconazole 50% (0.4 g L"1) and Propiconazole 25
K. Rajappan, P. Ahila Devi, V. Ravi
openaire   +1 more source

Rice false smut (Ustilaginoidea virens) in Egypt

Journal of Plant Diseases and Protection, 2004
Rice false smut (RFS) caused by Ustilaginoidea virens (Cke.) Tak. (Teleomorph: Claviceps oryzae sativae Hashioka) is a sporadic disease where rice (Oryza sativa L.) is cultivated. Rfs is a new disease in Egypt and appeared for the first time in the Nile Delta in 1997. This paper is the first record of Rfs in Egypt.
openaire   +1 more source

Study on identification of Rice False Smut based on CNN in natural environment

2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI), 2017
The widely distributed Rice False Smut(RFS) is one of the most harmful viruses for rice. However, it's identification methods are based on subjective judgment. In this paper, two methods are put forward to identify the RSF under natural conditions. One is the traditional ML(machine learning) classification method SVM (Support Vector Machine) combined ...
Cheng Liu, Chao Xu, Shaohua Liu, Dong Xu, Xiangang Yu   +4 more
openaire   +1 more source

Optimal application timing of simeconazole granules for control of rice kernel smut and false smut

Journal of General Plant Pathology, 2006
We investigated the optimal timing of simeconazole (RS-2-(4-fluorophenyl)-1-(1H-1,2,4-triazol-1-yl)-3-trimethylsilylpropan-2-ol) application for controlling rice kernel smut in field trials in Miyagi Prefecture, Japan, using formulations of simeconazole (1.5% granules). The field tests revealed that a submerged application of simeconazole granules (450–
Mikio Tsuda, Masashi Sasahara, Toshiaki Ohara, Shigehiro Kato   +3 more
openaire   +1 more source

Plant pathology: The infection source of rice false smut fungi

Current Biology
Rice false smut, caused by the fungal pathogen Ustilaginoidea virens, is a devastating disease affecting major rice-growing regions. A new study reveals that exopolysaccharides secreted by rhizosphere Sphingomonadaceae bacteria break the dormancy of U. virens chlamydospores and facilitate root colonization.
Zeyu, Wang, Ruyi, Wang, Yuese, Ning, Jie, Zhang   +3 more
openaire   +2 more sources

False smut of rice: Epidemiology, impact, and management strategies

Agrica
AbstractRice is a global staple food for more than half of the world's population. It is the third most important crop grown after Wheat and Maize in the world. It is cultivated in more than 100 countries and is a significant component of the daily diet in many Asian countries. China, India, Bangladesh, Vietnam, Indonesia, Thailand, Philippines, Brazil,
Aman Raj, Seweta Srivastava
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Rice false smut fungus hijacks the rice nutrients supply by blocking and mimicking the fertilization of rice ovary

Environmental Microbiology, 2016
Summary Rice false smut disease is an increasing threat to rice production in the world. Despite of best efforts, research for the infection of the fungus has yielded equivocal and conflicting results about where and how the infection is initiated and developed.
Jie-Hui, Song, Wei, Wei, Bo, Lv, Yang, Lin, Wei-Xiao, Yin, You-Liang, Peng, Guido, Schnabel, Jun-Bin, Huang, Dao-Hong, Jiang, Chao-Xi, Luo   +9 more
openaire   +2 more sources

Precise Disease Severity Assessment for False Smut Disease of Rice

Journal of Phytopathology, 2015
AbstractFalse smut is a disease of rice inflorescence. The existing systems of disease severity assessment for rice false smut disease are not very sensitive as the ball quality and also the impact of false smut on filled grain number and grain‐filling were not under consideration.
Urmila Dhua, Sudhi R. Dhua, Rabindra K. Sahu   +2 more
openaire   +1 more source

A refined inoculation method to evaluate false smut resistance in rice

Journal of General Plant Pathology, 2010
False smut, caused by Ustilaginoidea virens, is a serious disease of rice worldwide. To evaluate false smut resistance in rice, we developed a method combining the cultivation of the main culm of rice plants in the greenhouse and rapid preparation of a conidial suspension to inject into the leaf sheath.
Taketo Ashizawa, Mami Takahashi, Jouji Moriwaki, Kazuyuki Hirayae   +3 more
openaire   +1 more source