e-journal

Winter Wheat Response to Preplant Applications of Aminocyclopyrachlor

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Field studies were conducted in Wyoming and Nebraska in 2007 through 2009 to evaluate winter wheat response to aminocyclopyrachlor. Aminocyclopyrachlor was applied at rates between 15 and 120 g ai ha-1 6, 4, and 2 mo before winter wheat planting (MBP). Redroot pigweed control was 90% with aminocyclopyrachlor rates of 111 and 50 g ha-1 when applied 4 or 2 MBP. Aminocyclopyrachlor at 37 g ha-1 controlled Russian thistle 90% when applied 6 MBP. At Sidney, NE, winter wheat yield loss was >10% at all aminocyclopyrachlor rates when applied 2 or 4 MBP, and at all rates >15 g ha-1 when applied 6 MBP. At Lingle, WY, >40% winter wheat yield loss was observed at all rates when averaged over application timings. Although the maturing wheat plants looked normal, few seed were produced in the aminocyclopyrachlor treatments, and therefore preharvest wheat injury ratings of only 5% corresponded to yield losses ranging from 23 to 90%, depending on location. The high potential for winter wheat crop injury will almost certainly preclude the use of aminocyclopyrachlor in the fallow period immediately preceding winter wheat.

Nomenclature: Aminocyclopyrachlor; redroot pigweed, Amaranthus retroflexus L., AMARE; Russian thistle, Salsola tragus L. SASKR; winter wheat, Triticum aestivum L.

Key words: 6-Amino-5-chloro-2-cyclopropyl-4-pyrimidin methyl ester, crop injury, DPX-KJM44, DPX-MAT28, fallow, herbicide, soil residual.

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Ketersediaan

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Informasi Detail

Judul Seri

Weed Technology

No. Panggil

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Penerbit

New York : Weed Science Society America., 2011

Deskripsi Fisik

Weed Technology 2011 25:51–57

Bahasa

English

ISBN/ISSN

DOI: 10.1614/WT-D-10

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

25, January–March 2011

Subjek

PERTANIAN.
ILMU GULMA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

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