Zinc uptake and distribution in tomato plants in response to foliar supply of Zn hydroxide-nitrate nanocrystal suspension with controlled Zn solubility

Du, Yumei, Li, Peng, Nguyen, Anh V., Xu, Zhi Ping, Mulligan, David and Huang, Longbin (2015) Zinc uptake and distribution in tomato plants in response to foliar supply of Zn hydroxide-nitrate nanocrystal suspension with controlled Zn solubility. Journal of Plant Nutrition and Soil Science, 178 5: 722-731. doi:10.1002/jpln.201400213


Author Du, Yumei
Li, Peng
Nguyen, Anh V.
Xu, Zhi Ping
Mulligan, David
Huang, Longbin
Title Zinc uptake and distribution in tomato plants in response to foliar supply of Zn hydroxide-nitrate nanocrystal suspension with controlled Zn solubility
Journal name Journal of Plant Nutrition and Soil Science   Check publisher's open access policy
ISSN 1436-8730
1522-2624
Publication date 2015-10
Year available 2015
Sub-type Article (original research)
DOI 10.1002/jpln.201400213
Open Access Status Not Open Access
Volume 178
Issue 5
Start page 722
End page 731
Total pages 10
Place of publication Weinheim, Germany
Publisher Wiley - V C H Verlag GmbH
Collection year 2016
Language eng
Formatted abstract
The present study investigated the foliar uptake rate, distribution, and retranslocation patterns of novel, synthesized zinc hydroxide-nitrate nanocrystals (ZnHN; solubility 30–50 mg Zn L−1) applied on to the adaxial surface of tomato leaves (Solanum lycopersicum L. cv. Roma). The total Zn absorption from ZnHN suspension positively increased with ZnHN application rates, but the relative efficacy started to decline at > 400 mg Zn L−1. Within the 3 weeks, total Zn recovery in the ZnHN-treated plants was 16% of the total ZnHN-Zn applied, compared to the near 90% total Zn recovery in the Zn(NO3)2-plants at the same Zn rate. Foliar-absorbed ZnHN-Zn was distributed from the treated leaves into other plant parts and preferentially translocated into the roots. Distribution of Zn from ZnHN-treated leaves to apical parts was not limited by Zn deficiency. These results demonstrate that ZnHN crystals with controlled solubility provided some sort of slow-release Zn over a certain growth period at a rate slower (but quantitatively effective) than the soluble Zn(NO3)2. The efficacy of the prolonged foliar Zn supply could be enhanced if the ZnHN suspension is sprayed over a large leaf surface area at the peak vegetative or early flowering stage.
Keyword Distribution
Foliar Fertilizer
Solanum lycopersicum
Zinc hydroxide-nitrate nanocrystals
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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