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Martin P.N. Gent and Richard J. McAvoy

from PSEFW. Water stress may be used to control plant growth and quality. A constant low volumetric water content can control both biomass and height growth of ornamental plants ( Burnett et al., 2005 ; Van Iersel et al., 2004), although the extent of

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B. Tisserat and S.F. Vaughn

The growth (fresh weight), morphogenesis (number of needles and roots and shoot length) and monoterpene (α- and β-pinene) levels were determined in Pinus taeda L. (loblolly pine) seedlings exposed to 350, 1,500, 3,000, 10,000, or 30,000 μmol·mol-1 CO2 for 30 days under greenhouse conditions. Seedlings exposed to ultra-high levels (i.e., ≥3000 μmol·mol-1 CO2) had significantly higher (P = 0.05) fresh weight, needle number, root number, and shoot lengths compared to seedlings grown under ambient air (350 μmol·mol-1 CO2). Seedling fresh weights, number of roots, shoot length, and number of needles from pine seedlings supplemented with 10,000 μmol·mol-1 CO2 increased 341%, 200%, 74%, and 75 %, respectively, when compared to seedlings grown without any CO2 enrichment. In addition, α- and β-pinene levels in seedlings increased under ultra-high CO2 levels. The dominant monoterpene, α-pinene, increased 57% in seedlings grown under 10,000 μmol·mol-1 CO2 compared to levels obtained under 350 μmol·mol-1 CO2.

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Wallace G. Pill

Growth Media

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Scott Henderson, David Gholami, and Youbin Zheng

a crop. When this variation in water usage is not accounted for when irrigating, areas of under- and over-watering may develop, which can reduce plant growth through drought ( Gindaba et al., 2005 ) or flooding stress ( Olivella et al., 2000 ). Many

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Nianwei Qiu, Li Tian, Xifeng Yan, Haoyu Dong, Mengyu Zhang, Guoliang Han, and Feng Zhou

et al., 2016 ). Therefore, strontium at high concentrations has inhibitive effects on plants. Although strontium is not an essential nutrient element for plants, we have recently confirmed that strontium at low concentrations can promote the growth

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Fengyun Zhao, Yu Jiang, Xiufeng He, Huaifeng Liu, and Kun Yu

organic fertilizer and decreasing drip chemical fertilizer in grape production. Therefore, we aimed to study the effects of increasing organic fertilizer and decreasing drip chemical fertilizer on the tree growth and fruit quality of grapes in arid areas

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R. Paul Schreiner and Jungmin Lee

relatively small surface area of the pots (20% of the vineyard floor surface area) intercepts little rainfall ( Schreiner et al., 2013 ). This article reports the impact of a post-véraison water deficit on vine growth, yield, and nutrient status in leaves and

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Sylvie Jenni, Katrine A. Stewart, Gaétan Bourgeois, and Daniel C. Cloutier

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Bing Shi and Wallace Pill

Growth Media

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Kelly M. Stanton, Sally S. Weeks, Michael N. Dana, and Michael V. Mickelbart

restoration and less intensively managed areas where growth form is relatively unimportant. If they are to be used in more formal landscapes, it is important to know how to manage them for optimal growth, form, and flowering. Meadowsweet and steeplebush