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Christopher Parry and Bruce Bugbee

Maize is now widely grown in containers in greenhouses to facilitate phenotypic analysis. Fe chlorosis regularly occurs in maize cultivars (both field and sweet maize cultivars) with fertilization and irrigation practices that result in dark green

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Sergio Jiménez, Jorge Pinochet, Anunciación Abadía, María Ángeles Moreno, and Yolanda Gogorcena

, where roots are unable to acquire Fe ( Hell and Stephan, 2003 ). Lime-induced Fe deficiency has a strong effect in the production of several fruit crops of high economic importance grown in calcareous soils. Iron chlorosis is a common problem in peach

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Steven P.C. Groot, Sierd Zijlstra, and Johannes Jansen

Abbreviations: LCR, leaf chlorosis resistant; LCS, leaf chlorosis susceptible; PMR, powdery mildew resistant; PMS, powdery mildew susceptible. We thank the breeding companies De Ruiter Zonen B. V., Nunhems Zaden B. V., and Rijk Zwaan B.V. for the

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Nicole L. Waterland, John J. Finer, and Michelle L. Jones

, 2008 ; Monteiro et al., 2001 ; Sharma et al., 2005 , 2006 ; Waterland et al., 2010 ). Although ABA applications allow plants to survive temporary periods of drought stress, negative side effects, including leaf necrosis, chlorosis, or abscission

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Timothy W. Miller and Carl R. Libbey

, planted to two narcissus hybrids (early-blooming ‘Dutch Master’ adjacent to late-blooming ‘Flower Carpet’) displayed differential foliar chlorosis. Emerging ‘Flower Carpet’ foliage was chlorotic and shoot growth was delayed compared to the normal

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Jong-Goo Kang, Rhuanito Soranz Ferrarezi, Sue K. Dove, Geoffrey M. Weaver, and Marc W. van Iersel

the pay-by-scan system ( Starman et al., 2007 ; van Iersel et al., 2009 ; Waterland et al., 2010a ; Yue and Behe, 2008 ). Unfortunately, spray and drench applications of ABA have been shown to cause chlorosis in several plant species. This unwanted

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T. Scott Starr and L. F. Thompson

Interveinal chlorosis has been observed on the oldest leaves of several varieties of flowering crabapple (Malus sargentii Rehl). Our objective was to identify the cause of this disorder. Foliage and soil from 20 Sargent crabapple trees growing on 12 different sites were analyzed for possible nutrient deficiencies or excesses. Analyses showed N to be slightly low, Ca high, and Mg low in all leaf samples. Soil analysis showed Ca to be abnormally high at all sites. We concluded that the leaf discoloration was caused by a Mg deficiency due to Ca suppression of the Mg and that the low foliar N might be a contributing factor in the interveinal chlorosis.

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Xianping Guo, Yiwei Bian, Qizhen Qiu, Dongsheng Wang, Zhongying Wu, Zhenzhen Lv, Beijing Zhang, Qingnan Wu, and Hezhong Wang

Iron (Fe) plays an important role in several basic physiological functions and is an important factor involved in pear ( Pyrus spp.) tree growth and development. Iron deficiency chlorosis (IDC) is a worldwide problem that began in the 1930s

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Shinsuke Agehara and Daniel I. Leskovar

, indicating a crop specific sensitivity to ABA ( Davies and Jones, 1991 ). Furthermore, high-dose applications of ABA tend to have negative side effects such as leaf chlorosis and abscission ( Kim and van Iersel, 2011 ; Waterland et al., 2010b ). Therefore

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Miguel Urrestarazu, Juan E. Alvaro, Soraya Moreno, and Gilda Carrasco

range of pH values ( Alcañiz et al., 2004 ). However, as a result of the high cost, only cash crops are treated with these Fe chelates ( Chen and Barak, 1982 ). Although several researchers have investigated ferric chlorosis and ways to remediate Fe