Evaluation of Efficacy and Compatibility of Herbicides with Fungicides in Durum Wheat (Triticum durum Desf.) under Different Environmental Conditions: Effects on Grain Yield and Gluten Content

In the present study, field experiments were conducted to determine the efficacy and compatibility of herbicides and fungicides in durum wheat under Mediterranean semi-arid conditions, in Central Greece. Our results indicate that the herbicide florasulam+2.4-D was safe and did not cause any injury when applied alone or with fungicides, while bromoxynil+2.4-D mixed with azoxystrobin or trifloxystrobin+prothioconazole caused injury symptoms on leaves. The injury symptoms were transient, and observed only at Velestino area, where low temperatures and broad diurnal temperature fluctuations were recorded during the pesticides application period. Regarding septoria leaf blotch control, good results showed strobilurin alone or in mixture with a triazole, regardless the herbicide that was added to the mixture. The results of this study showed that bromoxynil+2.4-D caused injury when mixed with fungicides and applied under cold temperatures, while one fungicide application at stem elongation provided adequate Septoria leaf blotch control.

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New developed models to estimate leaf chlorophyll content in durum wheat (Triticum durum Desf.) under semi-arid conditions

International Journal of Biosciences (IJB) ◽

10.12692/ijb/10.3.118-123 ◽

2017 ◽

Vol 10 (3) ◽

pp. 118-123

Keyword(s):

Durum Wheat ◽

Chlorophyll Content ◽

Triticum Durum ◽

Leaf Chlorophyll Content ◽

Leaf Chlorophyll ◽

Arid Conditions ◽

Triticum Durum Desf ◽

Semi Arid

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Agronomical and Physiological Behavior of Durum Wheat (Triticum durum Desf.) Genotypes Under Semi-Arid Conditions

International Journal of Innovative Approaches in Agricultural Research ◽

10.29329/ijiaar.2020.320.4 ◽

2020 ◽

Vol 4 (4) ◽

pp. 423-435

Author(s):

Nadjım Semcheddıne ◽

Keyword(s):

Durum Wheat ◽

Triticum Durum ◽

Arid Conditions ◽

Triticum Durum Desf ◽

Semi Arid

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Tramesan Elicits Durum Wheat Defence Against the Septoria Leaf Blotch Complex

10.20944/preprints202003.0090.v1 ◽

2020 ◽

Author(s):

VALERIA Scala ◽

Chiara Pietricola ◽

valentina farina ◽

marzia beccaccioli ◽

slaven zjalic ◽

...

Keyword(s):

Durum Wheat ◽

Field Experiments ◽

Animal Health ◽

Septoria Tritici Blotch ◽

Septoria Tritici ◽

Animal Cells ◽

Zymoseptoria Tritici ◽

Septoria Leaf Blotch ◽

Leaf Blotch ◽

Wheat Field

The Septoria Leaf Blotch Complex (SLBC), caused by the two ascomycetes Zymoseptoria tritici and Parastagonospora nodorum, can reduce global yearly yield of wheat by up to 50%. In the last decade in Italy, SLBC incidence has increased; notably, durum wheat has proven to be more susceptible than common wheat. Field fungicide treatment can efficiently control these pathogens, but it leads to the emergence of resistant strains and adversely affects human and animal health, and the environment. Our previous studies indicated that active compounds produced by Trametes versicolor can restrict the growth of mycotoxigenic fungi and the biosynthesis of their secondary metabolites (e.g. mycotoxins). Specifically, we identified Tramesan: a 23 KDa -heteropolysaccharide secreted by T. versicolor that acts as a pro-antioxidant molecule in animal cells, fungi, and plants. Foliar-spraying of Tramesan (3.3 µM) in SLBC-susceptible varieties of durum significantly diminished symptoms of Stagonospora Nodorum Blotch (SNB) and Septoria Tritici Blotch (STB) by 75% and 65%, respectively. Tests were conducted under controlled conditions as well as in field. We show that Tramesan elicits wheat defence against SNB and STB augmenting the synthesis of defence-related hormones, notably JA and SA, that in turn switch on the expression of markers of defence (PR1, PR4 inter alia). In field experiments, yield of durum wheat plants treated with Tramesan was similar to that of untreated ones. The results suggest the use of Tramesan for protecting durum wheat against SLBC.

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Phenotypic Characterization of Some Durum Wheat (Triticum durum Desf.)Genotypes Growing under Semi-Arid Conditions

International Journal of Bio-resource and Stress Management ◽

10.23910/1.2021.2487 ◽

2021 ◽

Vol 12 (6) ◽

pp. 725-730

Author(s):

Guendouz Ali ◽

◽

Hannachi Abderrahmane ◽

Fellahi Zine El Abidine ◽

Benalia Frih ◽

...

Keyword(s):

Grain Yield ◽

Durum Wheat ◽

Triticum Durum ◽

Block Design ◽

Principal Component ◽

Phenotypic Characterization ◽

Arid Conditions ◽

Randomized Block Design ◽

Triticum Durum Desf ◽

Semi Arid

Breeders are permanently looking for an efficient method of developing genotypes with improved yield. The aim of this study was to evaluate the performance of some durum wheat genotypes, the study of the correlations between traits and the direct effect of each trait on final grain yield. Twenty genotypes of durum wheat (Triticum durum Desf.) were planted in the experimental fields of INRAA, Setif, Algeria in (2016 –2017) crop season. The genotypes tested were grown in a randomized block design with three replications. The analyses of variance (ANOVA) demonstrate the existence of genetic diversity between genotypes tested. In addition, significant and positive correlations were registered between grain yield (GY) and days to heading (DH), number of spikes per square meter (NSM) and number of kernels per spike (NKS). The path analysis (PA) demonstrates positive and significant direct effects of the number of spikes per square meter (NSM), thousand kernels weight (TKW) and number of kernels per spike (NKS) on grain yield. Overall, the results proved that the genotypes Rezzak, Ofanto and BIDI 17 have the best ranking with the highest grain yield, and these can be recommended as the best genotypes for some in this area. In addition, the Principal Component Analysis (PCA) proved that the genotypes Rezzak, Bidi17, Ofanto, Kebir and Adnan 2 are very suitable genotypes for growing under semi-arid conditions.

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