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Poster Session 5—Ornamental Plant Breeding 1 27July 2006, 12:00–12:45 p.m.
Researching the impact of various elements of the working environment is important to secure the company's competitiveness as well as the well-being of the employees. Ornamental plants are one element we know relatively little about. However, they
Abstract
The disposal of solid wastes from domestic and industrial sources and sludges from sewage treatment plants is an ever-increasing problem. More than 20 years ago our society’s prodigious waste production prompted Vance Packard (65) to characterize our society as a society of “waste makers” going from “riches to rags.” Estimates of the per capita production of waste vary, but it has been noted that the average person is generating more waste each year (97). During the last decade, environmental concerns and energy needs have raised serious questions about our methods of waste disposal. Bohn and Cauthorn (13) have observed that our handling of waste has been unimaginative and expensive.
Abstract
Cold hardiness levels determined for 23 species of plants with bulbs or other specialized underground structures showed great differences in hardiness; Ixia sp., Ranunculus sp., and Sparaxis tricolor were killed at −2°C, while Ixiolirion montanum was first injured at −18°C. In most species of bulbs, the basal plant and roots were the least hardy tissues. Results of this study do not agree with hardiness zone ratings found in the literature for many of the plants tested.
Abstract
Excised shoots of 10 shade tree species were exposed for 6 hours to 40 pphm (vv−1) sulfur dioxide (SO2), 40 pphm nitrogen dioxide (NO2), or 25 pphm ozone (O3) separately or in mixture. Sorption rates were generally greater in coniferous than in deciduous shoots and higher for SO2 than NO2. Adsorption on leaf surfaces was greater than absorption through stomates for 4 of 5 species in which the 2 forms of sorption could be separated, while sorption from single gases was similar to that from mixed gases for these species. For the 5 species in which transpiration continued in darkness, sorption from the mixture was consistently less than from single gases.
Abstract
Overwintering under microfoam thermoblanket resulted in high poststorage quality of container-grown Cotoneaster Dammeri C. K. Schneid, and Juniperus chinensis L. ‘Pfitzerana-Aureo’ in USDA plant hardiness zones 5a and 6a (1). Similar results were obtained for J. chinensis overwintered under white copolymer in zone 5, but severe damage was sustained by C. Dammeri since the covering did not maintain media temperature above the lethal point for this species. Storage under clear copolymer at both locations caused foliage damage which was severe in C. Dammeri and moderate in J. chinensis. Black poly storage caused severe foliage damage in all J. chinensis and C. Dammeri. Viburnum cassinoides L. overwintered without serious damage in all treatments.
Poster Session 7—Ornamental Plant Breeding 18 July 2005, 1:15–2:00 p.m. Poster Hall–Ballroom E/F
Poster Session 7—Ornamental Plant Breeding 18 July 2005, 1:15–2:00 p.m. Poster Hall–Ballroom E/F
Oral Session 32—Ornamental/Landscape/Turf/Plant Breeding/Management 30 July 2006, 2:00–3:15 p.m. Oak Alley Moderator: Timothy Rinehart
Oral Session 6—Ornamental Plant Breeding Moderator: Daniel F. Warnock 18 July 2005, 4:00–6:00 p.m. Room 107