Cellulose‐Based Hydrogel as a Natural Medium for Paddy Seed Germination

Abstract

Cellulose hydrogel derived from cellulose fibers extracted from printed paper waste is prepared. The hydrogel derived from 3 wt% of the cellulose concentration exhibits a maximum water absorption capacity of 465.5%. The effects of the cellulose hydrogel on the soil moisture are evaluated using four types of soils namely river sand, clayey soil, loamy soil, and gley soil (the wetland soil). The potential application of cellulose‐based hydrogel as an eco‐friendly seed germination media of the paddy seeds under the soil‐less condition is evaluated. This study shows that paddy seeds exhibit a higher seed germination rate of 53% when cellulose hydrogel is used as a seed germination media as compared to seed germination rate ranging from 14% to 35% when various types of soil are used as the germination media. The prepared cellulose hydrogel could be applied as an eco‐friendly and cost‐effective seed germination media to enhance the paddy seeds' germination rate.

Agriculture 4.0: Polymer Hydrogels as Delivery Agents of Active Ingredients

“…Subsequently, the gelation process is initiated through physical or chemical cross-linking. Among synthetic hydrogels for agricultural applications, the following can be mentioned: poly(vinyl alcohol) [ 67 ], poly(urethane) [ 118 ], poly(2-hydroxyethyl methacrylate) [ 20 ], poly(acrylic acid) [ 119 ], and poly(acrylamide) [ 120 ], while cellulose [ 113 ], nanocellulose [ 121 ], chitosan [ 31 ], chitosan/casein [ 122 ], alginate [ 123 ], starch [ 124 ], and lignin [ 125 ] hydrogels can be considered natural ones. An example of artificial hydrogels is sodium carboxymethyl cellulose [ 126 ].…”