Identification and characterization of leaf rust (Puccinia triticina) and Fusarium head blight (Fusarium graminearum) related genes in domesticated wheat varieties in Mongolia

Wheat is recognized as the major crop among all cereals. For better quality and disease-free production, the current study was designed to evaluate the prevalence of genetic leaf rust resistance and fusarium head blight in nineteen genotypes of wheat, which are commonly grown in Mongolia. For example Khalkhgol-1, Darkhan-131, Darkhan-160, Darkhan-144, Orkhon, Darkhan-34, Darkhan-74, Darkhan-193, Altaiskaya-100, Darkhan-181, Darkhan-141, Buryatskaya osistiya, Darkhan-166, Buryatskaya-79, Buryatskaya-34, Selenge, Altaiskaya-530, Altaiskaya-325 and Altaiskaya jinitsa genotypes. The presence of Lr34 and Fhbt1 genes were evaluated for leaf rust and fusarium head blight respectively. Lr34 gene was reported in the Darkhan-160 and Darkhan-181 genotypes, while fusarium head blight was not reported in any of the genotype

ECONOMIC IMPACTS OF FUSARIUM HEAD BLIGHT IN WHEAT

Fusarium Head Blight (FHB), commonly known as scab, has been a severe problem for wheat producers in recent years. This study estimates the economic value of crop losses suffered by wheat producers in the 1990s. Nine states and three wheat classes are included in the analysis, which considers the effects of scab on both production and average prices received. The cumulative value of losses (1991-97) in scab-affected regions is estimated at $1.3 billion. Two states, North Dakota and Minnesota, account for over two-thirds of these dollar losses.Fusarium Head Blight, scab, crop losses, wheat, Production Economics,

Select: A Fusarium Head Blight-tolerant Spring Wheat for South Dakota

This bulletin provides information regarding Select, a Fusarium Head Blight-tolerant Spring Wheat. The origin, breeding history, and agronomic characteristics are provided

Spring Wheat Planting Date Trial

Growing demand for local organic food has inspired new efforts to revive a staple element of the New England food system. Weed management is one of the foremost production related challenge for organic growers. The objective of this research was to determine the impact of spring wheat cultivar selection and planting date on weed biomass, Fusarium head blight incidence and grain yield and quality

Fusarium Head Blight Prediction Center

Author Institution (Lipps and Madden): Department of Plant Pathology, The Ohio State Universit

Wheat fusarium head blight 2001 epidemic in the southern Argentinian pampas

Wheat Head Blight or Scab is frequently a destructive fungal disease caused by several Fusarium species but F. graminearum Schwabe [teleomorph Gibberella zeae (Schwein) Petch; synonym = G. saubinetii (Mont.) Sacc.] is the principal causal agent. The disease is common in humid and semi-humid wheat (Triticum spp.) cropping areas around the world. Epidemics of Fusarium head blight (FHB) seem to be increasing globally during the last two decades. In Argentina and some other countries of South America, damages have been very significant. In the USA, Canada and other wheat cropping areas, several harvests have been affected by numerous epidemics.Facultad de Ciencias Agrarias y Forestale

Influence of plant population and nitrogen rate on occurrence of Fusarium head blight on some wheat varieties during 2013 in Serbia

Fusarium head blight is one of the most important diseases on wheat which can cause numerous types of Fusarium genus. The most significant species that causes Fusarium head blight in USA, Canada and Europe is F. graminearum. The consequences of infection by Fusarium head blight are different, but the most common are reduced yield, physiological and physico-chemical changes of grain and grain mycotoxin contamination. The aim of this study is to test occurrence of natural infection by Fusarium head blight depending on varieties, applied amount of nitrogen (0 kg/ha, 50 kg/ha, 100 kg/ha, 150 kg/ha) from fertilizer of ammonium nitrate (AN 33-35% N) and depending on seeding rate (300 grains/m², 500 grains/m², 700 grains/m², 900 grains/m²). Experiment was set up on Rimski Šančevi, Novi Sad, Serbia, on chernozem soil group. The study included 10 current and perspective varieties of winter wheat and triticale, which were created at the Institute of Field and Vegetable Crops in Novi Sad. Occurrence of Fusarium head blight was tested during the growing season 2012/2013 on nine winter wheat varieties (Arabeska, NS 40S, Zvezdana, NS Desetka, NS Avangarda, NS Futura, NS Ilina, Emina, Enigma) and one triticale variety (Odisej). The evaluation of the intensity of occurrence of infected ears was performed in phenophase of milk and wax maturity of wheat grain. The obtained results were statistically processed in the program Statistica 12 by using analysis of variance and Duncan's multiple range test. Tested varieties had low average number of infected ears by Fusarium head blight on the area of Rimski Šančevi during 2013. Out of ten tested varieties, the highest average number of infected ears had Zvezdana (6.0) and the lowest variety Odisej (1.3). A higher level of correlation between the number of infected ears by Fusarium head blight and seeding rate was established at NS Futura variety. That indicates an increase of the number of infected ears with increasing seeding rate. Different amounts of the applied nitrogen for wheat top fertilization showed different effects to the occurrence of Fusarium head blight. The highest average number of infected ears was established at variety Zvezdana with 50 kg/ha of the applied nitrogen from fertilizer of ammonium nitrate. By increasing amounts of nitrogen, the number of infected ears increased at varieties NS 40S, NS Desetka, NS Futura and Enigma

Climate change increases risk of fusarium ear blight on wheat in central China

This is the peer reviewed version of the following article: X. Zhang, et al, 'Climate change increases risk of fusarium ear blight on wheat in central China', Annals of Applied Biology, Vol. 164 (3): 384-395, May 2014, which has been published in final form at https://doi.org/10.1111/aab.12107. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.To estimate potential impact of climate change on wheat fusarium ear blight, simulated weather for the A1B climate change scenario was imported into a model for estimating fusarium ear blight in central China. In this work, a logistic weather-based regression model for estimating incidence of wheat fusarium ear blight in central China was developed, using up to 10 years (2001-2010) of disease, anthesis date and weather data available for 10 locations in Anhui and Hubei provinces. In the model, the weather variables were defined with respect to the anthesis date for each location in each year. The model suggested that incidence of fusarium ear blight is related to number of days of rainfall in a 30-day period after anthesis and that high temperatures before anthesis increase the incidence of disease. Validation was done to test whether this relationship was satisfied for another five locations in Anhui province with fusarium ear blight data for 4 to 5 years but no nearby weather data, using weather data generated by the regional climate modelling system PRECIS. How climate change may affect wheat anthesis date and fusarium ear blight in central China was investigated for period 2020-2050 using wheat growth model Sirius and climate data generated by PRECIS. The projection suggested that wheat anthesis dates will generally be earlier and fusarium ear blight incidence will increase substantially for most locations.Peer reviewedFinal Accepted Versio

Fusarium in wheat. Effects of soil fertility strategies and nitrogen levels on mycotoxins and seedling blight.

In a two-year field experiment in the Netherlands the relation between three soil fertility strategies, additional nitrogen levels and Fusarium Head Blight in wheat are explored. There was a substantial year-effect, as could be expected. The soil fertility strategies showed differences, but were party coinciding with location. Although not consistent over the years and strategies, a significant relation was found between additional nitrogen applications around anthesis and FHB, expressed as presence of mycotoxines (DON) and Total Root Rot from the Blotter test. Higher nitrogen levels from fertilizer applications at anthesis give a higher chance on FHB, with other so far unknown factors playing a role