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Martin P.N. Gent

may be better related to RGR. Bierhuizen et al. (1973) showed that shoot dry weight of lettuce was linearly related to radiation corrected for soil cover and leaf area growth was related to degree days. Additive Gomperz functions in soil temperature

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Russell L. Fuller, Michele R. Warmund, John H. Dunn, and Suleiman S. Bughrara

89 POSTER SESSION 13 Temperature Stress/Cross-Commodity

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Z. Wang, M.C. Acock, and B. Acock

102 POSTER SESSION 4F (Abstr. 224–233) Photoperiod/Temperature/Growth—Floriculture

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Lu Zhang, Xiuming Hao, Yonggeng Li, and Gaoming Jiang

natural adaptability of plants to environmental variations to reduce energy use while maintaining crop productivity. The developmental rates of many crops are determined by long-term average temperature rather than instantaneous temperature ( De Koning

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Meriam Karlsson and Jeffrey Werner

102 POSTER SESSION 4F (Abstr. 224–233) Photoperiod/Temperature/Growth—Floriculture

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Christopher J. Currey, Roberto G. Lopez, and Neil S. Mattson

Greenhouse bedding plant production begins in mid-to-late winter and early spring in temperate northern latitudes when ambient outdoor air temperatures and photosynthetic daily light integrals (DLI) are at seasonally low levels. During this time

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William B. Miller and Madeline W. Olberg

effect does plant size at the time of treatment have on response to ethephon? How does greenhouse temperature influence efficacy of ethephon substrate drenches? How does substrate temperature affect ethylene evolution from ethephon in the root zone? For

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Julie M. Tarara, Bernardo Chaves, and Bernadine C. Strik

may affect substantially how grow tubes alter the microclimate and plant growth. Recently we characterized above- and below-ground temperatures in a blueberry field in which unventilated single-wall grow tubes (translucent, opaque) were installed for

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Jiunn-Yan Hou, Wei-Li Lin, Nean Lee, and Yao-Chien Alex Chang

peltatum flowers were ≈2, 3, and 6 d after 1-MCP treatment at 25, 20.7, and 12 °C, respectively ( Cameron and Reid, 2001 ), demonstrating that the residual effect of 1-MCP is affected by temperature. Multiple applications of 1-MCP can be a strategy to

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Hans-Peter Kläring and Angela Schmidt

Decreasing the temperature in heated greenhouses significantly reduces heat energy consumption and thus heat costs and CO 2 emissions ( Elings et al., 2005 ). However, growth of the plants may also decrease, with major implications for yield. The