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Erik M. Hardy and Dana M. Blumenthal

Large greenhouse experiments are often required to generate the necessary statistical power to adequately test scientific hypotheses. The results of these experiments can be confounded by variation in greenhouse light levels, temperature, and

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L-Y. Li and J.H. Lieth

148 POSTER SESSION 5G (Abstr. 304–315) Greenhouse Management–Cross-commodity

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Lene Jakobsen, Michael Brogaard, Annie Enkegaard, Henrik F. Brødsgaard, and Jesper M. Aaslyng

This work was funded by the Directory for Food, Fishery and Agri Business. We are grateful to Jens Berthelsen for management of the plants and greenhouse technique, Hanne-Birgitte Christiansen for laboratory assistance and Jakob Markvart

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Raymond A. Cloyd, Cindy L. Galle, Stephen R. Keith, and Kenneth E. Kemp

Twospotted spider mite, Tetranychus urticae (Acari: Tetranychidae), is a major arthropod pest of greenhouses, feeding on over 300 plant species ( Jeppson et al., 1975 , van de Vrie, 1985 ). Twospotted spider mite (TSM) feeds within leaf cells

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Vincent M. Russo and James Shrefler

of protected culture. The transplants were started on a single date. It is not clear how planting date would affect production of bunching onions’ marketable yields. Russo (2004) reported on a method using seedling trays in a greenhouse to produce

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Y. Zhang and J.L. Shipp

We thank Tom J. Jewett, CANMET Energy Technology Centre, Natural Resources Canada, Nepean, Ontario, Canada, for data collected in the Summer 1997 at the Greenhouse and Processing Crops Research Centre, which was used to validate the daytime

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Ellen T. Paparozzi

Floriculturists, by virtue of their training and education across practical as well as scientific disciplines, bring specialized and unique skills for successful adaptation of field crops to greenhouse production. With the interest in food crop

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Marvin Pritts

effective strategy to extend the season in colder climates. Primocane-fruiting types can be grown in pots in a greenhouse. Growers can hold potted plants in a cooler and introduce them to a greenhouse environment a few months before fruit is to be

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Damien de Halleux and Laurent Gauthier

82 POSTER SESSION 12 Greenhouse Management/Cross-Commodity

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C. Siobhan Dunets and Youbin Zheng

Recent legislation in North America suggests stricter control will soon be put on the release of nitrogen and P-laden greenhouse wastewater into the environment ( OGVG, 2012 ). Unlike nitrogen, conventional treatment systems for greenhouse