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Effect of Wheat (Triticum aestivum) Row Spacing, Seeding Rate, and Cultivar on Yield Loss from Cheat (Bromus secalinus)

Published online by Cambridge University Press:  12 June 2017

Jeffrey A. Koscelny ,
Thomas F. Peeper ,
John B. Solie  and
Stanley G. Solomon Jr.
Jeffrey A. Koscelny
Affiliation:
Dep. Agron., Okla. State Univ., Stillwater, OK 74078
Thomas F. Peeper
Affiliation:
Dep. Agron., Okla. State Univ., Stillwater, OK 74078
John B. Solie
Affiliation:
Dep. Agric. Engr., Okla. State Univ., Stillwater, OK 74078
Stanley G. Solomon Jr.
Affiliation:
Dep. Agric. Engr., Okla. State Univ., Stillwater, OK 74078
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Abstract

Field experiments were conducted in Oklahoma to determine the effects of row spacing, cultivar, seeding rate, and water or ammonium polyphosphate fertilizer injection in the row at seeding, on the competitiveness of hard red winter wheat with cheat. Decreasing row spacing from 23 to 8 cm increased yield of weed-free wheat at two of three locations and cheat-infested wheat in six of ten experiments. Increasing seeding rate from 265 to 530 seeds m-2 increased wheat yield. Injecting water at 20 ml m-1 of row at seeding did not increase wheat emergence or yield. Cheat seed production was not consistently suppressed by any one cultivar. Juvenile growth habit was unrelated to wheat competitiveness.

Keywords

Cheat, Bromus secalinus L. ♯3 BROSEwheat, Triticum aestivum L.Winter wheatwater injection
Type
Research
Information
Weed Technology , Volume 4 , Issue 3 , September 1990 , pp. 487 - 492
Copyright
Copyright © 1990 Weed Science Society of America 

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