2015
DOI: 10.1016/j.scienta.2015.06.016
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Morphology, photosynthesis, and internal structure alterations in field apple leaves under hidden and acute zinc deficiency

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Cited by 31 publications
(24 citation statements)
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“…4). Consistent with our leaf SPAD results, strong direct relationships between Zn nutrition and leaf content of chlorophyll or SPAD have been previously shown in diverse plant species including pecan (Fu et al, 2015;Hu and Sparks, 1991;Mukhopadhyay et al, 2013;Ojeda-Barrios et al, 2012;Tavallali et al, 2009). Leaf SPAD, also modeled as a function of leaf tissue Zn concentration using a broken-lines regression model with a line segment-plateau form, showed breakpoints at leaf tissue Zn concentration of 16.3 mgÁkg -1 (95% CI = 12.5-20.0 mgÁkg -1 ) by dry weight on 7 Aug. 2013 and 14.1 mgÁkg -1 (95% CI = 11.4-16.8 mgÁkg -1 ) by dry weight on 28 Aug. 2014 (Fig.…”
Section: Resultssupporting
confidence: 92%
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“…4). Consistent with our leaf SPAD results, strong direct relationships between Zn nutrition and leaf content of chlorophyll or SPAD have been previously shown in diverse plant species including pecan (Fu et al, 2015;Hu and Sparks, 1991;Mukhopadhyay et al, 2013;Ojeda-Barrios et al, 2012;Tavallali et al, 2009). Leaf SPAD, also modeled as a function of leaf tissue Zn concentration using a broken-lines regression model with a line segment-plateau form, showed breakpoints at leaf tissue Zn concentration of 16.3 mgÁkg -1 (95% CI = 12.5-20.0 mgÁkg -1 ) by dry weight on 7 Aug. 2013 and 14.1 mgÁkg -1 (95% CI = 11.4-16.8 mgÁkg -1 ) by dry weight on 28 Aug. 2014 (Fig.…”
Section: Resultssupporting
confidence: 92%
“…Nevertheless, a substantial part of the reduction in shoot growth and fruit production in Zn-deficient plants may be explained by the negative impacts of Zn deficiency on carbon assimilation. A strong reduction in leaf P n in response to Zn deficiency has been shown across a broad diversity of plant species (e.g., Amiri et al, 2016;Fu et al, 2015;Mattiello et al, 2015;Tavallali et al, 2009), including pecan (Hu and Sparks, 1991). Zinc has been proposed to have major effects on P n in a number of different ways, including its essential roles in the function of the carbonic anhydrase enzyme, which assists in movement of CO 2 to the site of the Calvin cycle in the chloroplast stroma, and the Cu-Zn superoxide dismutase enzyme, which is involved in protection of plant cells against oxidative damage by reactive oxygen species (Broadley et al, 2012;Cakmak, 2000;Yruela, 2013).…”
mentioning
confidence: 99%
“…Apple ( Malus domestica Borkh.) trees are one of the most important fruit crops of temperate regions worldwide in terms of production levels (Cornille, Giraud, Smulders, Roldan‐Ruiz, & Gladieux, ) but are very sensitive to Zn deficiency (Alloway, ; Chandler, ; Fu et al, ; Rashid & Ryan, ). China is the largest producer of apples in the world (Miyata, Minot, & Hu, ).…”
Section: Introductionmentioning
confidence: 99%
“…China is the largest producer of apples in the world (Miyata, Minot, & Hu, ). Because a third of cultivated soils in China, primarily the calcareous soils in northern areas, contain very low bioavailable Zn (Broadley et al, ; Zou, Gao, Shi, Fan, & Zhang, ), most apple orchards in these areas suffer from Zn deficiency, resulting in severe yield losses and deterioration of fruit quality (Fu et al, ).…”
Section: Introductionmentioning
confidence: 99%
“…Zinc deficiency in crops causes root apex necrosis, leaf disorders, reduction of biomass, delayed maturity, yield reduction, and high mortality (Van Breemen and Castro 1980;Wissuwa et al 2006;Broadley et al 2007;Singh and Singh 2011;Al-Fahdawi et al 2014;Mattiello et al 2015;Fu et al 2015). Strategies like crop biofortification (increasing Zn content in edible parts during growth) or breeding for varieties tolerant to Zn-deficiency might help to overcome Zn deficiency in soils.…”
Section: Introductionmentioning
confidence: 99%