Foliar disease development in no-till winter wheat: Influence of agronomic practices on powdery mildew development

1992 ◽  
Vol 72 (3) ◽  
pp. 965-972 ◽  
Author(s):  
D. K. Tompkins ◽  
D. B. Fowler ◽  
A. T. Wright
Keyword(s):  
Triticum Aestivum ◽  
Powdery Mildew ◽  
Winter Wheat ◽  
Triticum Aestivum L ◽  
Row Spacing ◽  
Crop Canopy ◽  
Seed Rate ◽  
Agronomic Practices ◽  
No Till ◽  
N Fertility

Agronomic practices must be modified to maximize winter wheat (Triticum aestivum L.) yield in different environments. Changes in crop management may modify the microclimate within the crop canopy thereby influencing the development of foliar pathogens. This study was initiated to determine the effect of cultivar, nitrogen (N) fertility, seed rate (SR) and row spacing (RS) on the severity of powdery mildew (Erysiphe graminis DC f.sp. tritici E. Marchal) on the upper leaves of no-till winter wheat grown in the Saskatchewan Parkland region. Average powdery mildew (PM) severity was greater on the upper leaves of the semi-dwarf cultivar Norwin than on the tall cultivar Norstar and increased under conditions of high N fertility. The use of 36 cm RS and 140 kg ha−1 SR compared to 9 cm RS and 35 kg ha−1 SR also resulted in increased PM severity. In general, wide RS enhanced spore dispersal and disease progress up the plant while high SR created a more favourable crop canopy microclimate for PM development once the pathogen was established on a leaf.Key words: Wheat (winter). Triticum aestivum L., no-till, powdery mildew, Erysiphe graminis, row spacing, seed rate, nitrogen fertilizer

Influence of agronomic practices on canopy microclimate and septoria development in no-till winter wheat produced in the Parkland region of Saskatchewan

1993 ◽  
Vol 73 (1) ◽  
pp. 331-344 ◽  
Author(s):  
D. K. Tompkins ◽  
D. B. Fowler ◽  
A. T. Wright
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Air Temperature ◽  
Flag Leaf ◽  
Septoria Tritici ◽  
Yield Potential ◽  
High Yield ◽  
Crop Canopy ◽  
No Till ◽  
N Fertility

In areas with favourable growing conditions, high seeding rates (SRs), narrow row spacings (RSs) and nitrogen fertilization (N) are required before high yield potentials of winter wheat (Triticum aestivum L.) are realized. Changes in these variables produce changes in crop-canopy microclimate that may influence the development of foliar pathogens. This study examined the relative differences in crop-canopy microclimates due to different RS and SR combinations and determined the effect of SR, RS and N fertility on septoria (Septoria nodorum Berk. and Septoria tritici Rob. ex Desm.) development on normal height and semi-dwarf cultivars grown under no-till in the Parkland region of Saskatchewan. The daily mean value for solar radiation penetrating to the base of the crop canopy was 1100 μmol m−2 s−1 for 36-cm RS. This was 30% higher than the 845 μmol m−2 s−1 observed for 9-cm RS. The increased light interception by the canopy was associated with higher dry matter production and grain yield. During peak periods, wind speed was 56% higher within the 36-cm RS canopy than within the 9-cm RS canopy. Increased duration of leaf wetness was associated with 9-cm RS and 140-kg-ha−1 SR treatment. Cooler air temperature and higher RH within the canopy occurred for the 9-cm RS – 140-kg-ha−1 SR treatment. Differences in air temperature and RH between the 9-cm RS – 140-kg-ha−1 SR and the 36-cm RS – 35-kg-ha−1 SR treatments were smaller at night and greater during the day. The maximum differences occurred at mid-morning and mid-afternoon, when the 9-cm RS – 140-kg-ha−1 SR canopy was 1.5 °C cooler and had a 4.5% higher RH than the 36-cm RS – 35-kg-ha−1 SR canopy. Septoria severity increased when SR increased from 35 kg ha−1 to 140 kg ha−1. Septoria severity was not influenced by RS. Septoria severity was greater on the flag leaf of the semi-dwarf cultivar Norwin than on the tall cultivar Norstar. Increased N fertility reduced septoria severity in one trial. These observations demonstrated that, in addition to the influence on yield potential, high SR and narrow RS produce a canopy microclimate that is favourable for the development of septoria. Key words: Seed rate, row spacing, N fertility, Septoria sp., Triticum aestivum, canopy microclimate

Karat winter wheat

1991 ◽  
Vol 71 (1) ◽  
pp. 207-210
Author(s):  
H. G. Nass ◽  
H. W. Johnston ◽  
E. Hansel ◽  
R. Blatt ◽  
C. Caldwell ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Powdery Mildew ◽  
Winter Wheat ◽  
Triticum Aestivum L ◽  
Septoria Nodorum ◽  
Bread Making ◽  
Eastern Canada ◽  
Key Words Wheat ◽  
Glume Blotch ◽  
Cultivar Description

Karat is a winter wheat (Triticum aestivum L. em. Thell.) with bread making quality, high grain yield, and adequate straw strength. It is moderately susceptible to powdery mildew (caused by Erysiphe graminis D.C. ex. Merat f. sp. tritici Marchal) and septoria leaf and glume blotch (caused by Septoria nodorum Berk.) and is suited for production in areas of Eastern Canada where winter survival is not a problem. Key words: Wheat (winter), cultivar description

Fundulea hard red winter wheat

1993 ◽  
Vol 73 (1) ◽  
pp. 199-201
Author(s):  
H. G. Nass ◽  
H. W. Johnston ◽  
P. Franck ◽  
A. H. Teich ◽  
D. R. Sampson ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Powdery Mildew ◽  
Winter Wheat ◽  
Triticum Aestivum L ◽  
Bread Making ◽  
Key Words Wheat ◽  
Glume Blotch ◽  
Hard Red Winter Wheat ◽  
Cultivar Description ◽  
Red Winter Wheat

Fundulea is a winter wheat (Triticum aestivum L. em. Thell.) with bread-making quality and high grain yield. It is moderately susceptible to powdery mildew and septoria leaf and glume blotch and is suited for production in areas of Atlantic Canada where winter survival is not a problem. Key words: Wheat (winter), cultivar description

Water Use by No‐Till Winter Wheat Influence of Seed Rate and Row Spacing

1991 ◽  
Vol 83 (4) ◽  
pp. 766-769 ◽  
Author(s):  
D. K. Tompkins ◽  
D. B. Fowler ◽  
A.T. Wright
Keyword(s):  
Winter Wheat ◽  
Water Use ◽  
Row Spacing ◽  
Seed Rate ◽  
No Till

VALOR, A WINTER FEED WHEAT FOR THE MARITIMES

1982 ◽  
Vol 62 (2) ◽  
pp. 505-507 ◽  
Author(s):  
D. R. SAMPSON ◽  
H. G. NASS
Keyword(s):  
Triticum Aestivum ◽  
Powdery Mildew ◽  
Winter Wheat ◽  
Triticum Aestivum L ◽  
Kernel Weight ◽  
Winter Survival ◽  
Test Weight ◽  
Grain Protein ◽  
Maritime Provinces ◽  
Yield Test

Valor is a new, medium-hard, red winter feed wheat (Triticum aestivum L.) that is adapted to the Maritime Provinces of Canada. Valor was licensed in July 1981. Compared with Lennox, the principal winter wheat of the area, Valor has slightly higher yield, test weight and 1000-kernel weight, as well as greater winter survival and more resistance to powdery mildew. Valor has slightly weaker straw and lower grain protein.

In Winter Wheat (Triticum Aestivum L.), No-Till Improves Photosynthetic Nitrogen and Water-Use Efficiency

2019 ◽  
Vol 23 (1) ◽  
pp. 39-46
Author(s):  
Hazzar Habbib ◽  
Bertrand Hirel ◽  
Fabien Spicher ◽  
Frédéric Dubois ◽  
Thierry Tétu
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Water Use Efficiency ◽  
Water Use ◽  
Triticum Aestivum L ◽  
No Till ◽  
Use Efficiency

scholarly journals UGRC Ring, soft red winter wheat

2015 ◽  
Vol 95 (5) ◽  
pp. 1033-1035
Author(s):  
Lily Tamburic-Ilincic ◽  
Arend Smid
Keyword(s):  
Triticum Aestivum ◽  
Powdery Mildew ◽  
Winter Wheat ◽  
Grain Yield ◽  
Triticum Aestivum L ◽  
Falling Number ◽  
Soft Red Winter Wheat ◽  
Flour Yield ◽  
Moderately Resistant ◽  
Red Winter Wheat

Tamburic-Ilincic, L. and Smid, A. 2015. UGRC Ring, soft red winter wheat. Can. J. Plant Sci. 95: 1033–1035. UGRC Ring is a soft red winter wheat (Triticum aestivum L.) cultivar registered for Ontario, Canada. It has high grain yield, with good pastry quality (high flour yield, high falling number) and is moderately resistant to powdery mildew. UGRC Ring has good winter hardiness and is well adapted for the winter wheat growing areas of Ontario.

scholarly journals Winter Wheat (Triticum aestivum L.) Tolerance to Mulch

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2047
Author(s):  
Matthew R. Ryan ◽  
Sandra Wayman ◽  
Christopher J. Pelzer ◽  
Caitlin A. Peterson ◽  
Uriel D. Menalled ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Grain Yield ◽  
Cover Crops ◽  
Seedling Emergence ◽  
Triticum Aestivum L ◽  
Weed Suppression ◽  
Future Research ◽  
Wheat Grain ◽  
No Till

Mulch from cover crops can effectively suppress weeds in organic corn (Zea mays L.) and soybean (Glycine max L.) as part of cover crop-based rotational no-till systems, but little is known about the feasibility of using mulch to suppress weeds in organic winter small grain crops. A field experiment was conducted in central NY, USA, to quantify winter wheat (Triticum aestivum L.) seedling emergence, weed and crop biomass production, and wheat grain yield across a gradient of mulch biomass. Winter wheat seedling density showed an asymptotic relationship with mulch biomass, with no effect at low rates and a gradual decrease from moderate to high rates of mulch. Selective suppression of weed biomass but not wheat biomass was observed, and wheat grain yield was not reduced at the highest level of mulch (9000 kg ha−1). Results indicate that organic winter wheat can be no-till planted in systems that use mulch for weed suppression. Future research should explore wheat tolerance to mulch under different conditions, and the potential of no-till planting wheat directly into rolled-crimped cover crops.

scholarly journals The influence of farming systems and microbial preparations on the structure of the microbocenosis of the rhizosphere of Triticum aestivum L.

2020 ◽  
Author(s):  
A. Yu. Egovtseva ◽  
T. N. Melnichuk ◽  
S. F. Abdurashitov
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Farming Systems ◽  
Farming System ◽  
Triticum Aestivum L ◽  
Taxonomic Structure ◽  
Traditional Farming ◽  
Wheat Rhizosphere ◽  
Rhizosphere Microbiome ◽  
No Till

The use of microbial preparations contributed to a change in the taxonomic structure of winter wheat rhizosphere microbiome was established. A more significant effect of microbial preparations was noted under no-till technology on the structure of the microbiome than with the traditional farming system.

scholarly journals Weed management in no-till winter wheat (Triticum aestivum L.)

2010 ◽  
Vol 29 (1) ◽  
pp. 1-6 ◽  
Author(s):  
José M.G. Calado ◽  
Gottlieb Basch ◽  
Mário de Carvalho
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Weed Management ◽  
Triticum Aestivum L ◽  
No Till
Sign in / Sign up

Export Citation Format

Share Document