Temperature-Influenced Virus Movement in Expression of Resistance to Soilborne Wheat Mosaic Virus in Hard Red Winter Wheat (Triticum aestivum)

1993 ◽  
Vol 83 (5) ◽  
pp. 548 ◽  
Author(s):  
L. Drumm Myers
Plant Disease ◽  
2010 ◽  
Vol 94 (6) ◽  
pp. 766-770 ◽  
Author(s):  
J. A. Price ◽  
F. Workneh ◽  
S. R. Evett ◽  
D. C. Jones ◽  
J. Arthur ◽  
...  

Greenhouse and field studies were conducted to determine the effects of Wheat streak mosaic virus (WSMV), a member of the family Potyviridae, on root development and water-use efficiency (WUE) of two hard red winter wheat (Triticum aestivum) cultivars, one susceptible and one resistant to WSMV. In the greenhouse studies, wheat cultivars were grown under three water regimes of 30, 60, and 80% soil saturation capacity. After inoculation with WSMV, plants were grown for approximately 4 weeks and then harvested. Root and shoot weights were measured to determine the effect of the disease on biomass. In all water treatments, root biomass and WUE of inoculated susceptible plants were significantly less (P < 0.05) than those of the noninoculated control plants. However, in the resistant cultivar, significance was only found in the 30 and 60% treatments for root weight and WUE, respectively. Field studies were also conducted under three water regimes based on reference evapotranspiration rates. Significant reductions in forage, grain yield, and crop WUE were observed in the inoculated susceptible plots compared with the noninoculated plots. Both studies demonstrated that wheat streak mosaic reduces WUE, which is a major concern in the Texas Panhandle because of limited availability of water.


Crop Science ◽  
1991 ◽  
Vol 31 (1) ◽  
pp. 246-246 ◽  
Author(s):  
B. S. Gill ◽  
D. L. Wilson ◽  
W. J. Raupp ◽  
J. H. Hatchett ◽  
T. L. Harvey ◽  
...  

2016 ◽  
Vol 66 (4) ◽  
pp. 471-480 ◽  
Author(s):  
Yohei Terasawa ◽  
Miwako Ito ◽  
Tadashi Tabiki ◽  
Koichi Nagasawa ◽  
Koichi Hatta ◽  
...  

2010 ◽  
Vol 90 (5) ◽  
pp. 707-710 ◽  
Author(s):  
D. B. Fowler

CDC Buteo is a hard red winter wheat (Triticum aestivum L.) cultivar that is eligible for grades of the Canada Western Red Winter Wheat class. It is an intermediate height cultivar with moderate stem and leaf rust resistance and good winter hardiness and grain yield potential. It is adapted to the western Canadian prairies where its agronomic and disease package combined with an excellent grain quality profile has resulted in wide commercial acceptance in Saskatchewan. CDC Buteo was made the wheat quality standard for the Central Winter Wheat Co-operative Registration Trials in 2008.Key words: Triticum aestivum L., cultivar description, wheat (winter)


1993 ◽  
Vol 73 (1) ◽  
pp. 199-201
Author(s):  
H. G. Nass ◽  
H. W. Johnston ◽  
P. Franck ◽  
A. H. Teich ◽  
D. R. Sampson ◽  
...  

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


2015 ◽  
Vol 105 (5) ◽  
pp. 621-627 ◽  
Author(s):  
Gautam P. Pradhan ◽  
Qingwu Xue ◽  
Kirk E. Jessup ◽  
Baozhen Hao ◽  
Jacob A. Price ◽  
...  

Wheat streak mosaic virus (WSMV) causes significant yield loss in hard red winter wheat in the U.S. Southern High Plains. Despite the prevalence of this pathogen, little is known about the physiological response of wheat to WSMV infection. A 2-year study was initiated to (i) investigate the effect of WSMV, inoculated at different development stages, on shoot and root growth, water use, water use efficiency (WUE), and photosynthesis and (ii) understand the relationships between yield and photosynthetic parameters during WSMV infection. Two greenhouse experiments were conducted with two wheat cultivars mechanically inoculated with WSMV at different developmental stages, from three-leaf to booting. WSMV inoculated early, at three- to five-leaf stage, resulted in a significant reduction in shoot biomass, root dry weight, and yield compared with wheat infected at the jointing and booting stages. However, even when inoculated as late as jointing, WSMV still reduced grain yield by at least 53%. Reduced tillers, shoot biomass, root dry weight, water use, and WUE contributed to yield loss under WSMV infection. However, infection by WSMV did not affect rooting depth and the number of seminal roots but reduced the number of nodal roots. Leaf photosynthetic parameters (chlorophyll [SPAD], net photosynthetic rate [Pn], stomatal conductance [Gs], intercellular CO2 concentration [Ci], and transpiration rate [Tr]) were reduced when infected by WSMV, and early infection reduced parameters more than late infection. Photosynthetic parameters had a linear relationship with grain yield and shoot biomass. The reduced Pn under WSMV infection was mainly in response to decreased Gs, Ci, and SPAD. The results of this study indicated that leaf chlorophyll and gas exchange parameters can be used to quantify WSMV effects on biomass and grain yield in wheat.


2002 ◽  
Vol 82 (2) ◽  
pp. 421-423
Author(s):  
H. G. Nass ◽  
G. A. Atlin ◽  
C. A. Caldwell ◽  
D. F. Walker

AC Grandview, a hard red winter wheat (Triticum aestivum L.), is adapted to the Maritimes. It has shown high yield, good winter survival and moderate to good resistance to powdery mildew, septoria leaf and glume blotch and snow mold. Key words: Triticum aestivum, red winter wheat, yield, cultivar description


1977 ◽  
Vol 57 (3) ◽  
pp. 1009-1011
Author(s):  
U. J. PITTMAN

Preferential grazing by rodents on an experimental line of hard red winter wheat, WT80 (Triticum aestivum L.) was observed in a variety × fertilizer field experiment that also included the cvs. Winalta, Sundance, and Kharkov 22MC. Plots that received NP fertilizers were more intensively grazed than others. The rodents were tentatively identified as white-tailed jackrabbits (Lepus townsendi campanius Hollister).


1995 ◽  
Vol 9 (1) ◽  
pp. 131-140 ◽  
Author(s):  
Lora M. Franetovich ◽  
Thomas F. Peeper

Thirteen field experiments were conducted to evaluate quinclorac for cheat control in hard red winter wheat. Cheat control with quinclorac was variable. Quinclorac at 560 and 1120 g a.i./ha applied to tillered wheat controlled cheat 93 to 100% at four sites. In contrast, pooled over four other experiments and four application times, quinclorac at 420 g/ha and 560 g/ha controlled cheat only 20 and 31%, respectively. Quinclorac at 420 g/ha plus chlorsulfuron:metsulfuron (5:1) at 35 g a.i./ha applied PRE increased wheat yield 28% at one of three sites. At two of these sites, averaged over chlorsulfuron:metsulfuron rates of 0, 18, and 35 g a.i./ha, quinclorac at 280 and 420 g/ha applied POST, increased wheat yield 32 to 112%. In two cultivar tolerance experiments, quinclorac treatments did not damage any cultivar. Pooled over cultivars, yields were increased 7 and 10% when quinclorac at 280 and 560 kg/ha was applied, respectively. In a greenhouse experiment, quinclorac plus dicamba or esfenvalerate consistently reduced the leaf area of cheat in a manner suggesting synergistic effects. Of eight adjuvants evaluated in a laboratory experiment, only quinclorac plus the adjuvant BCH 864 01S reduced cheat leaf area more than quinclorac alone.


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