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Broomrape (Orobanche crenata) Control with Imazethapyr Applied to Pea (Pisum sativum) Seed

Published online by Cambridge University Press:  12 June 2017

Montserrat Jurado-Expósito ,
Mercedes Castejón-Muñoz  and
Luis García-Torres
Montserrat Jurado-Expósito
Affiliation:
Institute for Sustainable Agriculture. CSIC, Apdo. 4084, 14080-Córdoba, SPAIN
Mercedes Castejón-Muñoz
Affiliation:
Institute for Sustainable Agriculture. CSIC, Apdo. 4084, 14080-Córdoba, SPAIN
Luis García-Torres
Affiliation:
Institute for Sustainable Agriculture. CSIC, Apdo. 4084, 14080-Córdoba, SPAIN
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Abstract

Studies were conducted from 1993 through 1995 to determine broomrape control from imazethapyr applied to pea seeds. Soaking seeds for 1 to 10 min in 0.0001% to 1% imazethapyr (Pursuit-10) solutions or coating seeds with imazethapyr at 0.025 to 0.30 mg/g (herbicide/seed, equivalent to 5 to 60 g/ha for a seeding rate of 200 kg/ha) did not affect seed germination or crop emergence and growth. Broomrape control with imazethapyr applied by coating seed at 0.1 to 0.2 mg/g (herbicide/seed, 20 to 40 g/ha) or by soaking seeds for 5 min in 0.1% to 1% imazethapyr solution was from 75 to 80% and 50 to 70%, respectively. Pea biomass and seed yield increased, compared to broomrape-infested nontreated control, when pea seeds were treated with imazethapyr and imazapyr at 5 g/ha was applied late postemergence, as a result of the excellent broomrape control.

Keywords

Imazethapyr, 2[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acidbroomrape, Orobanche crenata Forsk. # ORACRpea, Pisum sativum L.Seed-treatmentsparasitic weedsORACR
Type
Research
Information
Weed Technology , Volume 10 , Issue 4 , December 1996 , pp. 774 - 780
Copyright
Copyright © 1996 by the Weed Science Society of America 

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