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Yin-Tung Wang

). Phalaenopsis and Doritaenopsis perform crassulacean acid metabolism to fix CO 2 primarily during the dark period of the day ( Guo, 1999 ; Ota et al., 1991 ). Ota et al. (1991) reported that at a common 20 °C nighttime temperature, increasing daytime

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Yin-Tune Wane

51 ORAL SESSION 14 (Abstr. 095-101) Floriculture: Light/Temperature

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W. J. Clore, G. H. Carter, and S. R. Drake

Abstract

Factors determined to have a pronounced effect on shear-press peak-force values of asparagus, Asparagus officinalis L. included sample size, spear diameter, length of green, and preharvest temperature. Shear-press values were greater following periods of cold weather in early spring. Larger diameter spears had lower peak-force values than smaller spears, indicating that larger spears are more tender than smaller spears. The number and diameter of spears produced by a particular cultivar, and not differences between cultivars, were the characteristics observed to influence shear-press values. Shear-press max peak-force values correlated well with subjective and objective determinations of asparagus fiber.

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Todd W. Wert, Jeffrey G. Williamson, José X. Chaparro, E. Paul Miller, and Robert E. Rouse

The climate where fruit is grown can affect many different aspects of growth and development, including shape. Several reports have been published for fruit other than peaches concerning climatic and temperature effects on fruit shape. In general

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Elzbieta U. Kozik and Todd C. Wehner

planted in North Carolina ( North Carolina Department of Agriculture and Consumer Services, 2004 ). The land devoted to watermelon production in North Carolina from 1994 to 2004 ranged from 3238 to 4616 ha ( Arney et al., 2006 ). Temperatures below 10 °C

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Thierry E. Besançon

that a temperature of at least 22 °C was required for >90% cranberry seed germination. We hypothesize that openings in the cranberry canopy may induce changes in the local environmental conditions that may be favorable to the germination of cranberry

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Ajay Nair and Mathieu Ngouajio

strategies ( Snapp et al., 2005 ). Unpredictable climatic conditions in the Great Lakes region such as high rainfall, low temperatures, and humid conditions early in the growing season delay planting and facilitate early and rapid infestation of pest and

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Michael W. Bairu, Manoj G. Kulkarni, Renée A. Street, Rofhiwa B. Mulaudzi, and Johannes Van Staden

information available on these aspects. Aloes are succulent and warm-climate plants, where both temperature and water play an important role in establishing them. This study was therefore conducted to examine 1) the effects of different temperatures, growth

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Thomas V. Reed and Patrick E. McCullough

broadleaf weed control and are popular chemistries for cool-season turf ( MacDonald et al., 1993 ; Neal, 1990 ). Efficacy of these herbicides may be affected by environmental conditions such as relative humidity, temperature, and soil moisture and

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Fan Li, Shenchong Li, and Qinli Shan

cultivars, causing distinct requirements in terms of growth conditions, such as temperature, light, moisture, and nutrients. Temperature is a primary factor that affects plant growth, especially cell growth and elongation, and the process of growth can be