Results 21 to 30 of about 3,203 (163)

Efficacy of fungicides in controlling rice blast and dirty panicle diseases in Thailand [PDF]

Scientific Reports, 2020
AbstractIn this study, the fungicidal activities of the fungicides azoxystrobin, difenoconazole + propiconazole, carbendazim, flutriafol, fluopyram + tebuconazole, mancozeb and thiophanate-methyl against rice blast and dirty panicle pathogens were evaluated under laboratory and field conditions.
Nattapatphon Kongcharoen, Nipon Kaewsalong, Tida Dethoup   +2 more
openaire   +2 more sources

Phenotypic evaluation of DH-lines developed on the base of rice samples with blast resistance genes [PDF]

E3S Web of Conferences, 2021
Gametoclonal changes are an additional source of genetic variation suitable for use in crop improvement programs for a range of agronomic traits.
Savenko E. G., Mukhina Zh. M., Glazyrina V. A., Korotenko T. L., Garkusha S. V.   +4 more
doaj   +1 more source

Natural variation in the atypical resistance gene Ptr confers broad-spectrum neck blast resistance in rice. [PDF]

Plant Genome
Abstract Neck blast (NB), caused by Magnaporthe oryzae, infects rice (Oryza sativa L.) and reduces yield. Knowledge of NB resistance remains limited due to the lack of reliable resistance evaluation methods. Here, we applied a newly established neck injection method and performed a genome‐wide association study (GWAS) on 335 diverse accessions from the
Navea IP, Monsur MA, Telebanco-Yanoria MJ, De La Rosa DG, Hechanova SL, Tuaño AP, Cumagun CJ, Choi IR, Kadaru S, Kim SR, Zhou B, Schepler-Luu V.   +11 more
europepmc   +2 more sources

Investigating the Mechanisms Underlying the Durability and Sustainable Use of Pb1 Gene-Mediated High Field Resistance to Rice Panicle Blast

Agronomy, 2023
Rice blast, caused by Magnaporthe oryzae, poses a significant threat to rice production. Rice blast susceptibility has been observed in Japanese rice varieties with excellent eating quality.
Kiyoshi Fujii, Taro Suzuki, Mitsuru Nakamura, Tomofumi Yoshida, Yoshinori Uchikawa, Haruka Suwazono, Nagao Hayashi, Yasukazu Kanda, Haruhiko Inoue   +8 more
doaj   +1 more source

Panicle blast 1 (Pb1) resistance is dependent on at least four QTLs in the rice genome. [PDF]

Rice (N Y), 2017
Rice blast is the most serious disease afflicting rice and there is an urgent need for the use of disease resistance (R) genes in blast tolerance breeding programs. Pb1 is classified as a quantitative resistance gene and it does not have fungal specificity. Pb1-mediated resistance develops in the latter stages of growth.
Inoue H, Nakamura M, Mizubayashi T, Takahashi A, Sugano S, Fukuoka S, Hayashi N.   +6 more
europepmc   +5 more sources

LOSSES IN GRAIN YIELD OF SOME RICE CULTIVARS DUE TO BLAST INFECTION AT DIFFERENT GROWTH STAGES [PDF]

Journal of Plant Protection and Pathology, 2009
Two Experiments were carried out in 1999 season. The first was at the experimental farm of Rice Research and Training Center (RRTC),Sakha, whereas the second was at the experimental farm of Gemmiza Research Station.
M. Sehly, M. Nazim, R. EL-Shafey
doaj   +1 more source

Assessments of Yield and Quality of Rice Affected by Rice Panicle Blast [PDF]

Research in Plant Disease, 2003
Correlation between the rice panicle blast and the rice quality and yield was evaluated in field experiments. Results showed that there were high positive correlations between the disease incidence and the rice yield and quality. The correlation coefficients between the disease incidence and the yield of Jinmibyeo, an early maturing cultivar and ...
Hong-Sik Shim, Yong-Ki Kim, Sung-Jun Hong, Seong-Sook Han, Jae-Mo Sung   +4 more
openaire   +1 more source

Characterization and Fine Mapping of a Blast Resistant Gene Pi-jnw1 from the japonica Rice Landrace Jiangnanwan.

PLoS ONE, 2016
Rice blast is a destructive disease caused by Magnaporthe oryzae, and it has a large impact on rice production worldwide. Compared with leaf blast resistance, our understanding of panicle blast resistance is limited.
Ruisen Wang, Nengyan Fang, Changhong Guan, Wanwan He, Yongmei Bao, Hongsheng Zhang   +5 more
doaj   +1 more source

Observation of rice panicle blast by fluorescent labeling.

Japanese Journal of Phytopathology, 1988
Rice panicles spontaneously infected with Pyricularia oryzae Cav. were stained with calcofluor white to impart fluorescence to fungal structures. The procedure facilitated observation of conidiophores and conidia formed on infected sites such as neck, rachis, panicle branch, pedicel and husk, and of invading hyphae in the cells of neck, rachis and ...
Hironori KOGA, Reiichi YOSHINO
openaire   +2 more sources

Quantitative trait locus analysis of resistance to panicle blast in the rice cultivar Miyazakimochi. [PDF]

Rice (N Y), 2014
Abstract Background Rice blast is a destructive disease caused by Magnaporthe oryzae, and it has a large impact on rice production worldwide. Compared with leaf blast resistance, our understanding of panicle blast resistance is limited, with only one panicle blast resistance gene, Pb1, isolated so far.
Ishihara T, Hayano-Saito Y, Oide S, Ebana K, La NT, Hayashi K, Ashizawa T, Suzuki F, Koizumi S.   +8 more
europepmc   +4 more sources