Date of heading and plant height of wheat varieties, as related to septoria leaf blotch damage

Euphytica ◽  
1978 ◽  
Vol 27 (2) ◽  
pp. 577-580 ◽  
Author(s):  
C. M. Tavella
Keyword(s):  
Plant Height ◽  
Wheat Varieties ◽  
Septoria Leaf Blotch ◽  
Leaf Blotch

scholarly journals Septoria Leaf Blotch and Reduced Nitrogen Availability Alter WRKY Transcription Factor Expression in a Codependent Manner

2020 ◽  
Vol 21 (11) ◽  
pp. 4165
Author(s):  
Alistair A. Poll ◽  
Jack Lee ◽  
Roy A. Sanderson ◽  
Ed Byrne ◽  
John A. Gatehouse ◽  
...  
Keyword(s):  
Nitrogen Availability ◽  
Wrky Transcription Factor ◽  
Wheat Breeding ◽  
Zymoseptoria Tritici ◽  
Wheat Varieties ◽  
Septoria Leaf Blotch ◽  
Leaf Blotch ◽  
Reduced Nitrogen ◽  
Necrotrophic Stage ◽  
Transcription Factor Expression

A major cause of yield loss in wheat worldwide is the fungal pathogen Zymoseptoria tritici, a hemibiotrophic fungus which causes Septoria leaf blotch, the most destructive wheat disease in Europe. Resistance in commercial wheat varieties is poor, however, a link between reduced nitrogen availability and increased Septoria tolerance has been observed. We have shown that Septoria load is not affected by nitrogen, whilst the fungus is in its first, symptomless stage of growth. This suggests that a link between nitrogen and Septoria is only present during the necrotrophic phase of Septoria infection. Quantitative real-time PCR data demonstrated that WRKYs, a superfamily of plant-specific transcription factors, are differentially expressed in response to both reduced nitrogen and Septoria. WRKY39 was downregulated over 30-fold in response to necrotrophic stage Septoria, whilst changes in the expression of WRKY68a during the late biotrophic phase were dependent on the concentration of nitrogen under which wheat is grown. WRKY68a may therefore mediate a link between nitrogen and Septoria. The potential remains to identify key regulators in the link between nitrogen and Septoria, and as such, elucidate molecular markers for wheat breeding, or targets for molecular-based breeding approaches.

scholarly journals Development of septoria leaf blotch on winter triticale varieties in the conditions of Forest-steppe of Ukraine

ScienceRise ◽  
2016 ◽  
Vol 8 (1 (25)) ◽  
pp. 54
Author(s):  
Олександр Анатолійович Демидов ◽  
Михайло Михайлович Ключевич ◽  
Сергій Іванович Волощук
Keyword(s):  
Forest Steppe ◽  
Septoria Leaf Blotch ◽  
Leaf Blotch ◽  
Winter Triticale

A predictive model for early-warning of Septoria leaf blotch on winter wheat

2009 ◽  
Vol 124 (3) ◽  
pp. 413-425 ◽  
Author(s):  
D. E. te Beest ◽  
M. W. Shaw ◽  
S. Pietravalle ◽  
F. van den Bosch
Keyword(s):  
Winter Wheat ◽  
Predictive Model ◽  
Early Warning ◽  
Septoria Leaf Blotch ◽  
Leaf Blotch

scholarly journals Yield and yield components of wheat as affected by phosphorus fertilization

2015 ◽  
Vol 41 ◽  
pp. 21-27 ◽  
Author(s):  
M. S. Alam ◽  
I. Jahan
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Yield Components ◽  
Agricultural Extension ◽  
Control Treatment ◽  
Phosphorus Fertilization ◽  
Wheat Varieties ◽  
Yield And Yield Components ◽  
Two Factors ◽  
Different Levels

The experiment was conducted at the Agronomy Field laboratory, Department of Agronomy and Agricultural Extension, University of Rajshahi to study the yield and yield components of wheat as affected by phosphorus fertilization. The experiment consisted of two factors i.e. (i) three wheat varieties viz., Shatabdi, Bijoy and Prodip and (ii) five levels of phosphorus viz. 0, 30, 60, 90, 120 kg P2O5 ha-1. A RCBD design was used for the experiment with three replications. The effect of variety was significant on all the yield components and yield except plant height. Prodip gave the highest grain yield (3.67 t ha-1) followed by Bijoy (3.45 t ha-1) and Shatabdi (3.28 t ha-1). Yield and yield components of wheat were significantly influenced by different levels of phosphorus. The highest grain yield (4.47 t ha-1) was recorded from P4 (120 kg P2O5 ha-1) and the lowest one (2.43 t ha-1) from the control treatment. The highest grain yield (4.80 t ha-1) was obtained from Prodip at 120 kg P2O5 ha-1 and the lowest one (2.3 t ha-1) was found in Shatabdi at control treatment. The results suggest that the combination of V3P4 (Prodip with 120 kg P2O5 ha-1) is the best for obtaining higher yield of wheat.

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