Evaluation of different fungicides and nitrogen rates on grain yield and bread-making quality in wheat affected by Septoria tritici blotch and yellow spot

Castro, Ana Carolina; Fleitas, María Constanza; Schierenbeck, Matías; Gerard, Guillermo Sebastián; Simón, Marı́a Rosa

doi:10.1016/j.jcs.2018.07.014

Cited by 39 publications

(39 citation statements)

References 19 publications

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“…In the wettest years, GLAD means were even 51.7% higher than in the driest years when Septoria leaf blotch was the prevalent disease (Castro et al, 2018). As a result, fungicide application significantly decreased the AUDPC values of Septoria leaf blotch and tan spot (Castro et al, 2018;Fleitas et al, 2018). Unfortunately, researchers found no significant differences between fungicide variants (tested variants for Septoria leaf blotch: TS (triazole + strobilurin), T (triazole), and UT (untreated); for tan spot: TSC (triazole+strobilurin+carboxamide), TS (triazole + strobilurin), and UT (untreated)) (Castro et al, 2018).…”

Section: Decision-support Systemsmentioning

confidence: 87%

“…For example, the results of researches in Argentina confirm that fungicide treatments increased green leaf area duration (GLAD) on average by 16% compared to the control treatment. In the wettest years, GLAD means were even 51.7% higher than in the driest years when Septoria leaf blotch was the prevalent disease (Castro et al, 2018). As a result, fungicide application significantly decreased the AUDPC values of Septoria leaf blotch and tan spot (Castro et al, 2018;Fleitas et al, 2018).…”

Section: Decision-support Systemsmentioning

confidence: 94%

“…The research data show that fungicides increased grain yields significantly (Bankina et al, 2014;Castro et al, 2018;Matzen et al, 2019). In Sweden, data from 350 field experiments performed in 1996-2011 showed that the mean yield increase in fungicidetreated plots was 10% if compared to untreated plots, and ranged between 0.39 and 3.39 t ha -1 depending on year (Djurle, Twengström, & Andersson, 2018).…”

Section: Decision-support Systemsmentioning

confidence: 95%

“…As a result, fungicide application significantly decreased the AUDPC values of Septoria leaf blotch and tan spot (Castro et al, 2018;Fleitas et al, 2018). Unfortunately, researchers found no significant differences between fungicide variants (tested variants for Septoria leaf blotch: TS (triazole + strobilurin), T (triazole), and UT (untreated); for tan spot: TSC (triazole+strobilurin+carboxamide), TS (triazole + strobilurin), and UT (untreated)) (Castro et al, 2018). In another field trial in Argentina, the fungicide group significantly influenced the duration of the leaf green area; however, significant differences were found among fungicide groups.…”

Section: Decision-support Systemsmentioning

confidence: 96%

“…Meteorological conditions are important factors in the development of fungal diseases in winter wheat (Bankina et al, 2018;Fernandez et al, 2016;Castro et al, 2018) and are the main inputs of decision-support systems (El Jaroudi et al, 2017). The mostly used parameters are air temperature, relative air humidity, and precipitation (Greiner et al, 2019).…”

Section: Decision-support Systemsmentioning

confidence: 99%

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Winter wheat leaf diseases and several steps included in their integrated control: A review

Svarta¹,

Bimšteine²

2019

Research for Rural Development

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Winter wheat (Triticum aestivum L.) leaf diseases is an important risk factor that influences the productivity and quality of wheat production. The aim of the present study was to review published scientific literature about the possibilities for integrated control of winter wheat leaf diseases. The most common and economically important wheat leaf diseases are Septoria leaf blotch (caused by Zymoseptoria tritici), tan spot (caused by Pyrenophora triticirepentis), yellow rust (caused by Puccinia striiformis), and powdery mildew (caused by Blumeria graminis). The severity of winter wheat diseases has varied significantly over the years and depended on meteorological conditions, variety resistance to pathogen, and tillage system. The crop rotation and an efficient residue management significantly decrease the development of tan spot. The development of Septoria leaf blotch mainly depends on meteorological conditions, but agronomic practice is less important. The use of disease-resistant varieties is the most economical, safe, and effective way to prevent and control wheat leaf diseases. Many European countries have a number of decision support systems for optimizing and minimizing the use of fungicides. Decision support systems are based on control thresholds and meteorological observations. Most used parameters are: air temperature, relative air humidity, and precipitation. These systems have been developed in the countries with a milder climate and a longer vegetation period than Latvia, and systems need to be adapted to Latvian conditions. The main groups of fungicides for disease control in winter wheat are azoles, strobilurin, and carboxamides. The results of many studies about the effectiveness of fungicide groups show that the obtained results differ and further research is needed.

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Section: Decision-support Systemsmentioning

confidence: 87%

Section: Decision-support Systemsmentioning

confidence: 94%

Section: Decision-support Systemsmentioning

confidence: 95%

Section: Decision-support Systemsmentioning

confidence: 96%

Section: Decision-support Systemsmentioning

confidence: 99%

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Winter wheat leaf diseases and several steps included in their integrated control: A review

Svarta¹,

Bimšteine²

2019

Research for Rural Development

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Impact of managing yellow rust (Puccinia striiformis f.sp. tritici) by the use of fungicide sprays and resistant varieties on the physiochemical qualities of bread wheat

Kebede,

Shikur,

Handaro

2024

Food and Energy Security

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Yellow rust disease caused by Puccinia striiformis f. sp. tritici is one of the major threats to wheat production in Ethiopia. In this paper, the impact of yellow rust on the physical qualities of bread wheat was studied. For this purpose, combinations of four bread wheat varieties (Digalu, Hidase, Danda'a, and Honkolo) and two fungicides (Nativo SC 300 and Tilt® 250E.C.) were tested at two different hotspot areas (Albazar and Alicho) in the Silte Zone, Southern Ethiopia, under natural epidemics of the disease during the 2018 growing season. A randomized complete block design in factorial arrangement with three replications was used to set up the experiment. A significant (p < .01) increase in hectoliters weight and wet gluten content were observed due to the application of Nativo SC 300; however, grain protein content did not respond significantly (p > .01) at both locations. Wheat varieties with high yellow rust severity exhibited maximum values of area under the disease progress curve and physical quality loss percentage (%). The highly susceptible wheat variety Digalu exhibited the highest values of hectoliter weight losses (%), and the actual losses ranged from 5.5% to 29.5%. Except for grain protein content, there was a significant negative correlation between the values of terminal rust severity, average coefficient infection, and area under the disease progress curve and that of hectoliters weight and wet gluten content, with correlation coefficients ranging from −0.85** to −0.33**. It is possible to improve the physiochemical properties of bread wheat through the application of foliar fungicides by selecting the appropriate genotypes that have an acceptable level of resistance to yellow rust.

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Appropriate sampling to aid on‐farm assessments of the haplotype composition of Zymoseptoria tritici populations

Harrison,

Boonham,

Macarthur

et al. 2024

Pest Management Science

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BACKGROUNDZymoseptoria tritici causes Septoria tritici blotch (STB), which is the biggest threat to wheat in the UK. Azole fungicides have been used since the 1980s to control STB, but resistance to these chemicals is now widespread. The main resistance mechanism is based on the accumulation of CYP51 mutations, with 33 mutations reported. Hence, farmers need an accurate estimate of the haplotype composition of Z. tritici populations to develop effective fungicide treatments and resistance management.RESULTSIsolates from Z. tritici lesions were collected from three fields across three commercial farms using two sampling approaches. Analysis of the isolate sequences revealed that the number of distinct haplotypes and the haplotype composition of the most dominant haplotypes varied only between and not within farms. Conventional W‐shaped and point sampling both found the same percentage of distinct haplotypes and frequencies of the six most dominant haplotypes.CONCLUSIONThe results from this survey suggest that farm‐resistance‐management strategies should be based on farm‐specific rather than national data, and that sampling within a single field is sufficient. W‐shaped sampling is often recommended in sampling approaches, but this survey finds no evidence of this approach being more appropriate for detecting a greater percentage of distinct haplotypes which may aid the discovery of potential new resistance threats. © 2024 Fera Science Ltd. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Evaluation of different fungicides and nitrogen rates on grain yield and bread-making quality in wheat affected by Septoria tritici blotch and yellow spot

Cited by 39 publications

References 19 publications

Winter wheat leaf diseases and several steps included in their integrated control: A review

Winter wheat leaf diseases and several steps included in their integrated control: A review

Impact of managing yellow rust (Puccinia striiformis f.sp. tritici) by the use of fungicide sprays and resistant varieties on the physiochemical qualities of bread wheat

Appropriate sampling to aid on‐farm assessments of the haplotype composition of Zymoseptoria tritici populations

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