Results 51 to 60 of about 881 (162)

Selection strategies of segregant soybean populations for resistance to Asian rust Estratégias de seleção de populações segregantes de soja para resistência à ferrugem-asiática

Pesquisa Agropecuária Brasileira, 2009
The objective of this work was to identify the best selection strategies for the more promising parental combinations to obtain lines with good resistance to soybean Asian rust (Phakopsora pachyrhizi). Two experiments were carried out in the field during
Aliny Simony Ribeiro, José Francisco Ferraz de Toledo, Magno Antonio Patto Ramalho   +2 more
doaj   +1 more source

Evaluation of Virulence of Phakopsora pachyrhizi and P. meibomiae Isolates [PDF]

Plant Disease, 2006
Asian soybean rust (ASR), caused by Phakopsora pachyrhizi and recently discovered for the first time in continental United States, has been of concern to the U.S. agricultural industry for more than 30 years. Since little soybean rust resistance is known, and resistance is often difficult to detect or quantitate, we initiated a project to develop a ...
M R, Bonde, S E, Nester, C N, Austin, C L, Stone, R D, Frederick, G L, Hartman, M R, Miles   +6 more
openaire   +2 more sources

A Repertoire of Major Genes From Crop Wild Relatives for Breeding Disease‐Resistant Wheat, Rice, Maize, Soybean and Cotton Crops

Plant Breeding, EarlyView.
ABSTRACT Global food demand is predicted to rise anywhere from 59% to 98% by 2050 because of increasing population. However, the continued depletion of natural resources and increasing biotic and abiotic stresses will continue to pose significant threats to global food security in coming years.
Memoona Khalid, Hafiz Mamoon Rehman, Tsz‐Yan Cheung, Shakeel Ahmed, Ting Fung Chan, Hon‐Ming Lam   +5 more
wiley   +1 more source

Detection of Soybean Rust caused by Phakopsora pachyrhizi in Northwestern Argentina

Plant Disease, 2005
Asian soybean rust, caused by Phakopsora pachyrhizi, is regarded as one of the most destructive diseases of soybean (Glycine max (L.) Merr.). In Argentina, it was first detected in the province of Misiones in the northeast near Paraguay and Brazil during the 2001-02 growing season (2).
Ploper, Leonardo Daniel, Gonzalez, V., Galvez, M. R., de Ramallo, N. V., Zamorano, M. A., Garcia, M. G., Castagnaro, Atilio Pedro   +6 more
openaire   +3 more sources

Determining frequencies of fungicide resistance in Leptosphaeria maculans that render demethylation inhibitor fungicides ineffective in the field

Pest Management Science, Volume 82, Issue 11, Page 10796-10805, November 2026.
As little as 1–10% of the population is needed to be resistant for demethylation inhibitor fungicides to be rendered ineffective. Following a single round of selection, the frequency increases by more than 15% with limited fitness penalty detected when no selection is present.
Alec J McCallum, Alexander Idnurm, Stephen J Marcroft, Andrew H Ware, Elizabeth M Sheedy, Angela P Van de Wouw   +5 more
wiley   +1 more source

An Artificially Selected Cytokinin‐Pathway Transcription Factor Balances Soybean Yield and Pathogen Resistance

Advanced Science, Volume 13, Issue 56, 9 October 2026.
A cytokinin pathway transcription factor, RR2b, was artificially selected during soybean domestication and improvement based on its differential transcriptional activity, which correlates with ATT repeat polymorphisms in its promoter. RR2b balances yield and defense by fine‐tuning its expression level and offers a promising target for decoupling trade ...
Qun Ma, Yaqing Chen, Yiwen Gao, Xueting Hu, Qun Yang, Yucheng Liu, Peiyong Xin, Jijun Yan, Jinfang Chu, Lei Li, Zhixi Tian, Bo Ren   +11 more
wiley   +1 more source

Fungicide management in the Asian soybean rust

Revista Agrogeoambiental, 2021
Asian soybean rust is the major crop disease and the management of the use of the fungicide is important for effective control. The objective of this work was to evaluate the management of fungicides with sequential applications to control Asian soybean ...
Antonio Luiz Viegas Neto, Cristiano Márcio Alves de Souza, Bruno Fernandes Bertoncello, Izidro dos Santos Lima Júnior, Ligia Maria Maraschi da Silva Piletti, Márcio Roberto Rigotte   +5 more
doaj   +1 more source

First Report of Phakopsora pachyrhizi on Soybean in Costa Rica

Plant Disease, 2015
Phakopsora meibomiae (Arthur) Arthur has been reported to occur in several legume species in the tropical regions of Central and South America. In Costa Rica, this pathogen was initially reported as P. pachyrhizi Sydow (1); however, to our knowledge, P. pachyrhizi has not been detected in Costa Rica.
A, Murillo-Williams, P, Esker, T, Allen, C, Stone, R, Frederick   +4 more
openaire   +2 more sources

Amplicon Characterization of Fungal Diversity and Functional Prediction of Glycine max L. Rhizosphere Microbiome Under Different Organic Fertilization

MicrobiologyOpen, Volume 15, Issue 5, October 2026.
The rhizosphere microbiome is important for soil health and plant productivity, with fungi primarily acting as drivers of soil ecosystem functions. The profiling of community composition across treatments with whole‐amplicon sequencing of the fungal ITS region was conducted. Organic fertilizers enrich beneficial fungi, enhancing ecosystem functions and
Ijeoma Emelda Osuji, Akinlolu Olalekan Akanmu, Olubukola Oluranti Babalola   +2 more
wiley   +1 more source

Variabilidade genética de Phakopsora pachyrhizi avaliada por meio de marcadores microssatélites

Pesquisa Agropecuária Brasileira, 2012
O objetivo deste trabalho foi avaliar a variabilidade genética da ferrugem-asiática-da-soja no Brasil, com uso de marcadores microssatélites. Populações de esporos de Phakopsora pachyrhizi coletadas nas regiões Sul, Sudeste e Centro Oeste do país foram ...
Nely Norder Tschurtschenthaler, Elisa Serra Negra Vieira, Tatiane Dalla Nora, Ivan Schuster   +3 more
doaj   +1 more source