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favored plant growth. However, research on autotoxicity in ornamentals is limited. Tukey (1969) showed that when chrysanthemum was grown repeatedly in the same place for several years, growth was reduced owing to accumulation of toxic substances in the

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Abstract

Three cheers for Tukey for pointing out why we should no longer use the word “ornamentals” (HortScience 22:9, Feb. 1987) to describe landscape plants, with their many functional uses that transcend the merely ornamental. Some of us have been uncomfortable with the word for a long time. Now it is time to discipline ourselves to the use of more appropriate language—if we expect our products and services to receive the respect they deserve.

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Ornamental peppers ( Capsicum annuum L.) belong to the plant family Solanaceae, which includes ornamentals such as the Brugmansia (Angel’s trumpet), Brunfelsia , Browallia (Bush violet), Datura , Nicotiana , Petunia , and Salpiglossis

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Abstract

Methyl sulfanilylcarbamate (asulam) was effective for the selective control of several grassy weeds in established st. augustinegrass (Stenotaphrum secundatum (Walt.) Kuntze), ‘Tifway’ bermudagrass (Cynodon dactylon L.), and ‘Emerald’ zoysiagrass (Zoysia matrella Merr.). Bahiagrass (Paspalum notatum Flugge) and centipedegrass (Eremochloa ophuroides (Munro) Hack.) were severely injured when asulam was used at a rate of 2.24 kg ai/ha. Thirty-six species of ornamental plants were relatively tolerant to foliage applications of asulam at rates of 2.24 and 4.48 kg ai/ha with growth normal on all but 4 ornamental species 22 weeks following treatment.

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today ( Huxley, 1942 ). These changes, called mutations, have also resulted in variations within many plant species. Mutations have been the source of improvements in many ornamental species such as japanese morning glory ( Ipomaea nil ; Miyake and Imai

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32 ORAL SESSION 1 (Abstr. 387–391) Crop Protection & Weed Control–Woody Ornamentals/Landscape/Turf

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