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Sean J. Markovic and James E. Klett

Gibberellic acid to extend shoots and bud break on Heuchera and Scabiosa Proc. Intl. Plant. Prop. Soc. 44 545 546 Anderson, R.M. Rupp, L.A. 2012 Selecting and evaluating accessions of Epilobium sect. Zauschneria (Onagraceae) © Proc. Intl. Plant. Prop

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James E. Klett and David Staats

During the 1999 season, preemergent herbicides were applied to container-grown herbaceous perennials and evaluated on the basis of weed control, phytotoxicity, and effect on plant growth. The herbicides and rates were: Oxyfluorfen + Pendimethalin (Scotts Ornamental Herbicide II) 3 and 6 lb ai/A, Napropamide (G) (Devrinol) 3 and 6 lb ai/A, Oryzalin (Surflan) 2 and 4 lb ai/A, Oxadiazon (Ronstar) 4 and 8 lb ai/A, Oxyfluorfen + Oryzalin (Rout) 3 and 6 lb ai/A, Prodiamine (Barricade) 0.65 and 1.3 lb ai/A, Pendimethalin (Scotts Ornamental Weedgrass Control) 2 and 4 lb ai/A, Trifluralin (Treflan) 4 and 8 lb ai/A. Herbicides were applied to Penstemon mexicali `Red Rocks'™, Osteospermum barberiae compactum `Purple Mountain'™, Gazania linearis `Colorado Gold'™, Agastache rupestris, Diascia integerrima `Coral Canyon'™, and Zauschneria arizonica. All plant and herbicide combinations did not result in any significant decline in plant growth. All herbicides provided good weed control.

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Areej A. Alosaimi, Robert R. Tripepi, and Stephen L. Love

seedling growth ( Unander et al., 1995 ) or for obtaining genetic uniformity. Epilobium canum (Greene) P.H. Raven garrettii (A. Nelson) P.H. Raven (syn. Zauschneria garrettii ), common name firechalice or hummingbird flower, is in the Onagraceae family

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Shana G. Brown and James E. Klett

°F (day) and 55 to 62 °F (night) in an attempt to suppress flowering in another research subject, ‘Orange Carpet’ trumpet mint ( Zauschneria garrettii ‘PWWG01S’), being grown in the same greenhouse. The average measured temperatures in the greenhouse