Fe Chelates for Remediation of Fe Chlorosis in Strategy I Plants

Lucena, Juan J.

doi:10.1081/pln-120024257

Cited by 102 publications

(91 citation statements)

References 28 publications

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“…The characteristics of an iron chelate that determine its effectiveness in agronomic practice are: (1) its ability to remain in solution, (2) its susceptibility to competition from other metal ions, (3) its ability to deliver iron to the plant, and (4) its selectivity to pick up iron from the soil, either after having delivered an iron ion to the plant (shuttle effect) or upon initial contact with the soil (Lucena 2003). In the case of soil application of iron chelates, at least three out of four of these features are co-determined by the characteristics of the soil.…”

Section: Introductionmentioning

confidence: 99%

The behaviour of EDDHA isomers in soils as influenced by soil properties

et al. 2006

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FeEDDHA products are applied to correct iron chlorosis in plants and consist of a mixture of EDDHA isomers chelated to iron. In this study such mixtures have been divided into four (groups of) isomers: racemic o,o-EDDHA, meso o,o-EDDHA, o,p-EDDHA and rest-EDDHA. The physical and chemical properties of these isomers differ and hence does their ability to deliver Fe to plants. To come to a soil-specific iron fertilization recommendation, the behaviour of the EDDHA isomers in the soil needs to be understood. This behaviour has been examined in a soil interaction experiment as a function of time, and it has been related to soil properties. The isomer fractions remaining in solution can be ranked racemic

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Section: Introductionmentioning

confidence: 99%

The behaviour of EDDHA isomers in soils as influenced by soil properties

et al. 2006

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“…This case decreases iron availability and expose the vines to severe chlorosis. The general physiological responses to Fe deficiency stress are release of H + ions and rising reduction of ferric Fe at the plasmalemma of roots or release of phytosiderophores from roots (Jolley et al, 1996) as well as chlorosis on leaves, reduction in vegetative and generative developments (Nikolic and Kastori, 2000;Lucena, 2003) since bicarbonate neutralizes the root H-ATPase activity (Rabotti and Zocchi, 1994). Therefore, iron mediates the growth and development processes of plants based on the fact that chlorophyll synthesis and the photosynthetic chain are closely related to iron status of the plant (Katyal and Sharma, 1980).…”

Section: Introductionmentioning

confidence: 99%

Response of four grapevine (Vitis spp.) genotypes to direct or bicarbonate-induced iron deficiency

Sabır

Bilir-Ekbic

Erdem

et al. 2010

Span. j. agric. res.

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In Turkey, calcareous soil conditions usually cause signif icant decreases in grape yield. Understanding the physiological responses of grapevine genotypes under such conditions would yield invaluable knowledge to recover these problems. This study was thus conducted on the comparative evaluation of the responses of four Vitis spp. materials (a cultivar, 'Alphonse Lavallee', and three rootstocks, 'Fercal', '99 R' and '1613 C'), differing in tolerance potential to direct and lime-induced chlorosis. In greenhouse, rooted cuttings were grown in inert perlite using containers for two years with complete Hoagland nutrients solution except for Fe as variable. The experiment comprised five applications performed for three times per year. Iron applications (FeNaEDTA) in 9 and 36 mg L -1 doses and their combinations with 840 mg L -1 NaHCO 3 were compared with control (iron-free Hoagland solution).

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“…The effectiveness of individual FeEDDHA components is determined by: 1) their ability to remain in solution, 2) their susceptibility to cation competition and biodegradation, 3) their ability to transfer Fe to the plant, and 4) the ability of the corresponding EDDHA component to selectively mobilize Fe (Lucena 2003). Considerable effort has been invested to improve the understanding of these characteristics.…”

Section: The Effectiveness Of Feeddha Components As Fe Fertilizermentioning

confidence: 99%