Explaining variation in the effects of take‐all (<i>Gaeumannomyces graminis</i> var. <i>tritici</i>) on nitrogen and water uptake by winter wheat

Pillinger, C. T.; Paveley, N. D.; Foulkes, J.; Spink, John

doi:10.1111/j.1365-3059.2005.01229.x

Cited by 16 publications

(12 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Previous research has shown that the progression of take‐all epidemics from build‐up to TAD is significantly influenced by environmental conditions (Slope & Gutteridge, 1979; Bailey et al. , 2005; Pillinger et al. , 2005; Ennaifar et al.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Evidence that wheat cultivars differ in their ability to build up inoculum of the take‐all fungus, Gaeumannomyces graminis var. tritici, under a first wheat crop

Mcmillan

Hammond‐Kosack

Gutteridge³

2010

Plant Pathology

View full text Add to dashboard Cite

The effect of wheat cultivar on the build-up of take-all inoculum during a first wheat crop was measured after harvest using a soil core bioassay in field experiments over five growing seasons (2003)(2004)(2005)(2006)(2007)(2008). Cultivar differences in individual years were explored by analysis of variance and a cross-season Residual Maximum Likelihood (REML) variance components analysis was used to compare differences in those cultivars present in all years. Differences between cultivars in the build-up of inoculum were close to or at significance in two of the five trial years (2004 P < 0AE05; 2006 P < 0AE07), and current commercially listed cultivars were represented at both extremes of the range. In 2007 and 2008, when environmental conditions were most favourable for inoculum build-up, differences were not significant (P < 0AE3). In 2005 the presence of Phialophora spp. at the trial site restricted the build-up of take-all inoculum under all cultivars. The cross season REML variance components analysis detected significant differences (range: 3AE4-47AE8% roots infected in the soil core bioassay; P < 0AE01) between the nine cultivars present in all years (excluding 2005). This is the first evidence of relatively consistent differences between hexaploid wheat cultivars in their interactions with the take-all fungus, and this could give an indication of those cultivars that could be grown as a first wheat crop, in order to reduce the risk of damaging take-all in a second wheat crop. This phenomenon has been named the take-all inoculum build-up (TAB) trait.

show abstract

Section: Discussionmentioning

confidence: 99%

“…, 2007). High soil moisture levels have been associated with more severe take‐all epidemics (Pillinger et al. , 2005).…”

Section: Discussionmentioning

confidence: 99%

Evidence that wheat cultivars differ in their ability to build up inoculum of the take‐all fungus, Gaeumannomyces graminis var. tritici, under a first wheat crop

Mcmillan

Hammond‐Kosack

Gutteridge³

2010

Plant Pathology

View full text Add to dashboard Cite

show abstract

“…Previous research has shown that high soil moisture levels are related to higher severity of take-all (Cook, 2003;Pillinger et al, 2005;Smiley, 2009). Cook (1981) indicated that for take-all to spread it needs a field with high water potential largely for the pathogens to grow and infect the plants in the 25 cm layer of the soil.…”

Section: Discussionmentioning

confidence: 99%

The incidence and severity of take-all in winter wheat and Gaeumannomyces graminis soil inoculum levels in Lithuania

Ramanauskienė

Dabkevičius

Tamošiūnas

et al. 2019

Zemdirbyste-Agriculture

View full text Add to dashboard Cite

In recent years, because of the constantly changing farming systems and under a limited choice of alternative crops, many farmers have been growing the same crops in the same fields for two or more consecutive years. This practice has resulted in increasing incidence and severity of take-all in winter wheat (Triticum aestivum L.) crops. The aim of this study was to evaluate the incidence and severity of take-all in winter wheat and estimate the level of Gaeumannomyces graminis var. tritici (Ggt) and G. graminis var. avenae (Gga) inoculum in the soil in three agro-ecological zones (Western, Middle Lowland and Eastern) of Lithuania. During the 2013-2014 period, takeall incidence in winter wheat varied from 2.0% to 92.0% in 81 fields inspected. The highest take-all incidence and take-all index were identified in the Middle Lowland zone, while the lowest in the Western zone. The inoculum level of Ggt/Gga in the soil was estimated using the bait method by assessing DNA amounts of pathogens in the roots of wheat plants, grown in the soil samples collected in different agro-ecological zones of Lithuania. The amounts of Ggt/Gga DNA varied considerably among the sites. Averaged data showed the lowest take-all inoculum level in Eastern zone and the highest in Middle Lowland. The highest amount of Ggt/Gga DNA was established in the samples collected in Pakruojis and Panevėžys districts. In three samples from Raseiniai, Šiauliai and Alytus districts the quantity of fungal DNA was very small 0.188-0.640 pg of fungal DNA μg-1 of plant DNA, and in five samples from Šilutė, Tauragė, Telšiai, Kėdainiai and Panevėžys districts no fungal DNA was detected. In this study, the use of different management and different environmental conditions, also unpredictability of the disease (ability to spread in patches), probably were the main reasons, which had significant impact on the marked variation of take-all incidence and severity in winter wheat crops in Lithuania.

show abstract

“…tritici (Ggt) DNA concentrations >80 pg. Bateman & Hornby 1999;Bateman et al 2004;Pillinger et al 2005).…”

Section: Discussionmentioning

confidence: 99%

Consecutive wheat sequences: effects of contrasting growing seasons on concentrations ofGaeumannomyces graminisvar.triticiDNA in soil and take-all disease across different cropping sequences

et al. 2015

View full text Add to dashboard Cite

SUMMARYThe extent and severity of wheat take-all (caused by Gaeumannomyces graminis var. tritici (Ggt)) can vary considerably between growing seasons. The current study aimed to identify climatic factors associated with differing concentrations of Ggt DNA in soil and take-all disease at different stages of a sequence of wheat crops. Pre-sowing soil Ggt DNA concentrations and subsequent take-all disease in consecutive wheat crop sequences were compared across six seasons in 90 commercial cropping fields in Canterbury and Southland, New Zealand, between 2003 and 2009. Disease progress was assessed in additional fields in 2004/05 and 2005/06. While a general pattern in inoculum and disease fluctuations was evident, there were exceptions among wheat crop sequences that commenced in different years, especially for first wheat crops. In three consecutive growing seasons, there was very low inoculum increase in the first wheat crop, while increases in first wheat crops during the following three seasons was much greater. Low spring–summer rainfall was associated with low build-up of inoculum in first wheat crops. The inoculum derived from the first wheat then determined the amount of primary inoculum for the subsequent second wheat, thereby influencing the severity of take-all in that crop. Differing combinations of weather conditions during one wheat crop in a sequence and the conditions experienced by the next crop provided explanations of the severity of take-all at grain fill and the resulting post-harvest soil Ggt DNA concentrations in second wheat crops. Examples of contrasting combinations were: (a) a moderate take-all epidemic and high post-harvest inoculum that followed high rainfall during grain fill, despite low pre-sowing soil Ggt DNA concentrations; (b) severe take-all and moderate to high inoculum build-up following high pre-sowing soil Ggt DNA concentrations and non-limiting rainfall; and (c) low spring and early summer rainfall slowing epidemic development in second wheat crops, even where there were high pre-sowing soil Ggt DNA concentrations. The importance of the environmental conditions experienced during a particular growing season was also illustrated by differences between growing seasons in take-all progress in fields in the same take-all risk categories based on pre-sowing soil Ggt DNA concentrations.

show abstract

Explaining variation in the effects of take‐all (Gaeumannomyces graminis var. tritici) on nitrogen and water uptake by winter wheat

Cited by 16 publications

References 25 publications

Evidence that wheat cultivars differ in their ability to build up inoculum of the take‐all fungus, Gaeumannomyces graminis var. tritici, under a first wheat crop

Evidence that wheat cultivars differ in their ability to build up inoculum of the take‐all fungus, Gaeumannomyces graminis var. tritici, under a first wheat crop

The incidence and severity of take-all in winter wheat and Gaeumannomyces graminis soil inoculum levels in Lithuania

Consecutive wheat sequences: effects of contrasting growing seasons on concentrations ofGaeumannomyces graminisvar.triticiDNA in soil and take-all disease across different cropping sequences

Contact Info

Product

Resources

About