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Effect of postharvest field burning on jointed goatgrass (Aegilops cylindrica) germination.

Young, F. L.; Ogg, A. G., Jr.; Dotray, P. A.;

Weed Technology Year: 1990 Vol: 4 Issue: 1 Pages: 123-127 Ref: 11 ref.

1990

บทคัดย่อ

Effect of postharvest field burning on jointed goatgrass (Aegilops cylindrica) germination.

In a kiln experiment, temp. of 200-400 deg C for 120 s reduced germination of jointed goatgrass (A. cylindrica) seeds 50 to 100%. Postharvest field burning of wheat and jointed goatgrass stubble destroyed 43 to 64% of the jointed goatgrass spikelets located on the soil surface. Seeds contained in spikelets that were minimally burned (slightly browned) germinated 32 to 65%, while only 5% of seeds contained in spikelets moderately (<50%) charred germinated, and severely burned (>50% charred) seeds completely failed to germinate. Field burning destroyed 90% or more of jointed goatgrass seeds in spikelets located on the soil surface. Burning may be a feasible method for controlling small infestations of this weed.