Selective Weed Control from EPTC Applied with Seed of Alfalfa (<i>Medicago sativa</i>)

Dawson, J. H.

doi:10.1017/s0043174500061324

Cited by 6 publications

(1 citation statement)

References 3 publications

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“…All measurements of treated alfalfa plants were compared with those of untreated plants. Because the effect of EPTC is limited to young seedlings (2), treated plants were maintained only until they appeared normal and new leaves were free of symptoms.…”

Section: Methodsmentioning

confidence: 99%

Tolerance of Alfalfa (Medicago sativa) to EPTC

Dawson¹

1983

Weed sci.

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EPTC (S-ethyl dipropylthiocarbamate) did not reduce emergence of alfalfa (Medicago sativaL. ‘Vernal’) seedlings at 3 to 81 kg/ha in the greenhouse nor at 3 to 243 kg/ha in the field. No rate injured roots, but temporary foliar symptoms were present at all rates. Soaking seeds for 40 days in technical grade EPTC or for 8 days in water saturated with EPTC before seeding in untreated soil did not reduce emergence or injure the seedlings. Seedlings from seeds germinated in paper towels moistened with water saturated with EPTC grew normally when transferred to untreated soil. Alfalfa was injured if seedlings were exposed to EPTC after emergence, but it tolerated exposure to high concentrations during imbibition and germination of the seeds and elongation of the seedlings before they emerged from the soil. EPTC delayed seedling emergence by about 1 day. This effect was separate from that causing typical foliar symptoms.

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Section: Methodsmentioning

confidence: 99%

Tolerance of Alfalfa (Medicago sativa) to EPTC

Dawson¹

1983

Weed sci.

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Applying butylate- and EPTC-impregnated fertilizer to a cover crop for weed control in no-till corn, Zea mays L.

Hoyt

1995

Crop Protection

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Selective Weed Control with EPTC-Treated Seed of Alfalfa (Medicago sativa)

Dawson¹

1981

Weed sci.

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EPTC (S-ethyl dipropylthiocarbamate) was applied to seed of alfalfa (Medicago sativaL.) that was coated with a porous material consisting principally of lime or gypsum. When the treated seed was planted in the field or greenhouse, grass was controlled selectively. When seeds, each carrying 0.1 mg EPTC, were seeded 1 cm apart in rows, the rate of EPTC would have been 2 kg/ha if this quantity of EPTC had been distributed in a band 5 cm wide. Such applications controlled grass completely in bands 5 to 6 cm wide. When seeds, each carrying 0.2 mg EPTC, were evenly distributed at seeding rates of 14 or 25 kg/ha, the broadcast rates of EPTC were 1.3 and 2.2 kg/ha. Both rates controlled grass completely. Storing EPTC-treated seed for 1 yr at 5 C did not affect germination of the seed or emergence and growth of the seedlings.

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Selective Weed Control from EPTC Applied with Seed of Alfalfa (Medicago sativa)

Cited by 6 publications

References 3 publications

Tolerance of Alfalfa (Medicago sativa) to EPTC

Tolerance of Alfalfa (Medicago sativa) to EPTC

Applying butylate- and EPTC-impregnated fertilizer to a cover crop for weed control in no-till corn, Zea mays L.

Selective Weed Control with EPTC-Treated Seed of Alfalfa (Medicago sativa)

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