Effectiveness of synthetic calcite doped with Fe-EDDHSA as a slow-release Fe source: In-vitro experiment on kiwifruit (Actinidia chinensis var. deliciosa) plants

被引：0

作者：

Elena, Baldi ^{[1
]}

Grazia, Marino ^{[1
]}

Enrico, Muzzi ^{[1
]}

Claudio, Marzadori ^{[1
]}

Claudio, Ciavatta ^{[1
]}

Marta, Tavoni ^{[2
]}

Matteo, Di Giosia ^{[2
]}

Matteo, Calvaresi ^{[2
]}

Giuseppe, Falini ^{[2
]}

Francesco, Zerbetto ^{[2
]}

Moreno, Toselli ^{[1
]}

机构：

[1] Univ Bologna, Dipartimento Sci & Tecnol Agroalimentari, Viale Fanin 44, I-40127 Bologna, Italy

[2] Univ Bologna, Dipartimento Chim Giacomo Ciamician, Via F Selmi 2, Bologna, Italy

来源：

AIMS AGRICULTURE AND FOOD | 2019年 / 4卷 / 01期

关键词：

Fe-chelates; in-vitro culture; pH; alkaline growing media; EDDHSA/CaCO3; IRON-DEFICIENCY; GROWTH; RESPONSES; CHLOROSIS; DELIVERY; CRYSTALS; TOMURI; PH;

D O I：

10.3934/agrfood.2019.1.127

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Doped calcite (Fe-EDDHSA/CaCO3) was experimentally produced. The hypothesis of the present experiment is that, when roots get in contact with Fe-EDDHSA/CaCO3, the extrusion of H+ decreases the pH and dissolves calcite with subsequent release of Fe that becomes available for roots. The aim of the experiment was to determine whether doped calcite might represent a slow-release Fe source for in-vitro grown kiwifruit plantlets. The root elongation media used in the experiment had pH 8.0 and differed from each other for Fe supply as follow: Control medium that contained complete Murashige and Skoog salt mixture, including FeSO4 and Na(2)EDTA; calcite medium enriched with Fe-EDDHSA/CaCO3 as the only Fe source; -Fe medium without Fe. The absence of FeSO4 in the medium caused a reduction of plantlet growth. The final pH was higher with calcite medium than in control and -Fe. The addition of Fe-EDDHSA/CaCO3 increased Fe shoot concentration when compared with the -Fe medium. The data of the present experiment show the potential Fe slow release ability of Fe-EDDHSA/CaCO3; however, further investigation on Fe containing fertilizers should be conducted on potted plants to validate our results.

引用

页码：127 / 135

页数：9