Influence of Temperature and Five Fungicides on Rhizoctonia Root Rot of Hard Red Winter Wheat

Plant Disease ◽  
1991 ◽  
Vol 75 (10) ◽  
pp. 983 ◽  
Author(s):  
J. T. Mathieson
Plant Disease ◽  
2001 ◽  
Vol 85 (9) ◽  
pp. 973-976 ◽  
Author(s):  
G. Piccinni ◽  
J. M. Shriver ◽  
C. M. Rush

A dryland field study was conducted to determine the effect of seed size and planting date of hard red winter wheat on the severity of common root rot caused by Bipolaris sorokiniana (Sacc.) Shoemaker. Seed of cvs. Hawk, TAM 200, TAM 107, Scout 66, and Siouxland 89 were separated into three size categories of small, mixed, and large and were planted in the first weeks of September and October 1994 and 1995. Disease ratings for incidence and severity of subcrown internode infections were made in March and at harvest. At harvest, grain yields were collected. In both years of the study, there was no interaction between seed size and cultivars for any of the measured variables. Overall, seed size had no effect on disease severity or grain yield for either year. However, when sorted by planting date, plants from small seed yielded less than plants from other seed. October plantings showed lower disease indices than September plantings at the March evaluation. At the harvest disease evaluation, there were no differences in disease severity between planting dates for the first year but, in the second year of the study, plants from the October planting had lower disease than those from the September planting. There was no significant correlation among seed size, final yield, and disease index. The results of this study suggest that the expense of planting higher-quality certified seed cannot be justified for producing hard red winter wheat in dryland conditions in the Texas Panhandle, considering the current price of wheat and the average dryland yield.


Crop Science ◽  
1967 ◽  
Vol 7 (1) ◽  
pp. 13-16 ◽  
Author(s):  
A. M. Schlehuber ◽  
D. C. Abbott ◽  
B. R. Jackson ◽  
B. C. Curtis

Crop Science ◽  
1984 ◽  
Vol 24 (6) ◽  
pp. 1220-1220
Author(s):  
O. G. Merkle ◽  
J. H. Hatchett ◽  
E. L. Smith

Crop Science ◽  
1993 ◽  
Vol 33 (5) ◽  
pp. 1120-1120 ◽  
Author(s):  
B. F. Carver ◽  
A. L. Rayburn ◽  
R. M. Hunger ◽  
E. L. Smith ◽  
W. E. Whitmore

Crop Science ◽  
1992 ◽  
Vol 32 (2) ◽  
pp. 507-507 ◽  
Author(s):  
R. G. Sears ◽  
T. S. Cox ◽  
G. M. Paulsen

1966 ◽  
Vol 58 (1) ◽  
pp. 89-91 ◽  
Author(s):  
M. I. Shaalan ◽  
E. G. Heyne ◽  
J. R. Lofgren

2020 ◽  
Vol 100 (6) ◽  
pp. 737-746
Author(s):  
R.J. Graf ◽  
R.J. Larsen ◽  
B.L. Beres ◽  
R. Aboukhaddour ◽  
A. Laroche ◽  
...  

AAC Network is a semi-dwarf hard red winter wheat (Triticum aestivum L.) cultivar that is well adapted across western Canada and eligible for grades of Canada Western Red Winter (CWRW) wheat. It was developed using wheat × maize pollen doubled haploid methodology. AAC Network was evaluated in the Western Canadian Winter Wheat Cooperative registration trials relative to CDC Buteo, Emerson, Moats, and AAC Elevate for 4 yr (2016–2019). Based on 44 replicated trials, AAC Network produced grain yield similar to AAC Elevate, the highest yielding check, with a protein concentration 0.9 units higher. AAC Network had fair to good winter survival, relatively late maturity, short straw with excellent lodging resistance, and high test weight. AAC Network expressed resistance to stem and stripe rust, moderate resistance to leaf rust and common bunt, and intermediate resistance to Fusarium head blight. In addition to increased grain protein concentration, AAC Network showed improvements in gluten strength and flour water absorption, and it maintained the excellent milling yield and low flour ash attributes of the CWRW wheat class.


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