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Forage quality responses of selected grasses to tebuthiuron



Forage quality responses of selected grasses to tebuthiuron



Journal of Range Management 37(1): 83-87



Tebuthiuron pellets (20% active ingredient [a.i]) applied at 0.6,1.1. or 2.2. kg/ha (a.i.) to native stands of little bluestem [Schizachyrryium scoparium] and at 1.1. or 2.2. kg/ha to 1-yr-old seeded stands of Bahiagrass [Paspalum notatum], Bell rhodesgrass [Chloris gayana], green sprangleton [Leptochloa dubia] and little bluestem did not significantly alter the in vitro digestible organic matter concentrations of grass leaves. Leaf water concentrations of Bahiagrass, green sprangletop and little bluestem were not consistently altered by application of tebuthiuron. Application of 1.1 or 2.2 kg/ha of tebuthiuron pellets to seeded stands or to native little bluestem increased foliar crude protein concentrations. Application of 0.125, 0.188 or 0.25 ppm of tebuthiuron in aqueous solutions to pots containing grasses in the greenhouse significantly increased foliar crude protein concentrations, compared to that of untreated plants. Crude protein concentrations were increased only during the growing season of application in the native stand of little bluestem. Application of tebuthiuron for brush control may enhance rangeland forage crude protein concentrations while not affecting in vitro digestible organic matter.

Accession: 001370769

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DOI: 10.2307/3898831

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