Absorption Characteristics of Strawberry on I-, IO3- and the Effects on the Quality
- 1Institute of Environment & Biogeochemistry, Zhejiang University, Hangzhou 310027, China
2Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
3Geological Research Center For Agricultural Applications, China Geological Surver, Hangzhou 311201, China
Received date: 2016-01-29
Accepted date: 2016-05-06
Online published: 2017-04-05
Abstract
To improve the iodine content of plant foods plays an important role in supplement of natural iodine for humans. We performed a hydroponic experiment to reveal the characteristics of I-, IO3- uptake by strawberry plants. We measured the aboveground biomass of strawberry plants grown in solution at various iodine concentrations. The effects of I-, IO3- absorption on fruit quality were evaluated in terms of variations in content of vitamin C, soluble sugar, total acidity and nitrate of strawberries under different iodine treatments. The higher the I-, IO3- concentration of the solution, the more iodine the strawberry plants absorbed. The absorption was higher for I- than IO3- under the same exogenous iodine concentration. A proper dose of iodine application promoted the growth of strawberry plants, which increased the biomass and also improved fruit quality by increasing vitamin C and soluble sugar content. Grown with 0.5-5.0 mg∙kg-1 IO3- solution, the total acidity and nitrate content of strawberries increased, which reduced the quality of strawberries. Under 0.25-2.5 mg∙kg-1 I- treatment, the total acidity and nitrate content of strawberries decreased, thereby enhancing the quality of strawberries. These results may provide technical support for scientific cultivation of iodine-enriched strawberry.
Key words： strawberry; I-; IO3-; absorption characteristic; fruit quality
Cite this article
Liu Huiping, Hong Chunlai, Li Rui, Song Mingyi, Liu Jiawei, Dai Zhixi, Zhou Jun, Weng Huanxin . Absorption Characteristics of Strawberry on I-, IO3- and the Effects on the Quality[J]. Chinese Bulletin of Botany, 2017 , 52(2) : 167 -174 . DOI: 10.11983/CBB16021
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