数字农科院2.0

Characterizing a Cost-Effective Hydrogel-Based Transparent Soil

文献类型： 外文期刊

作者： Li, Kanghu;Ma, Lin;Gao, Yang;Zhang, Jiyang;Li, Sen

作者机构：

关键词： transparent soil;transmittance;hardness;porosity;shrinkage

期刊名称： GELS

ISSN：

年卷期： 2023 年 9 卷 10 期

页码：

收录情况： SCIE（2023版）

摘要： Transparent soil (TS) was specifically designed to support root growth in the presence of air, water, and nutrients and allowed the time-resolved phenotyping of roots in vivo. Nevertheless, it is imperative to further optimize the reagent cost of TS to enable its wider utilization. We substituted the costly Phytagel obtained from Sigma with two more economical alternatives, namely Biodee and Coolaber. TS beads from each brand were prepared using 12 different polymer concentrations and seven distinct crosslinker concentrations. A comprehensive assessment encompassing transparency, mechanical characteristics, particle size, porosity, and stability of TS was undertaken. Compared to the Sigma Phytagel brand, both Biodee and Coolaber significantly reduced the transparency and collapse stress of the TS they produced. Consequently, this led to a significant reduction in the allowable width and height of the growth box, although they could still simultaneously exceed 20 cm and 19 cm. There was no notable difference in porosity and stability among the TS samples prepared using the three Phytagel brands. Therefore, it is feasible to consider replacing the Phytagel brand to reduce TS production costs. This study quantified the differences in TS produced using three Phytagel brands at different prices that will better promote the application of TS to root phenotypes.

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