Degree Name

Master of Science (MS)

Semester of Degree Completion


Thesis Director

Steven A. Becker


The effects of hydrogel on various aspects of plant growth and soil physics were determined for Tagetes patula (marigold) and Vinca rosea growing in 'PRO-MIX' soilless potting medium.

The addition of hydrogel at various concentrations to the potting medium increased the water-holding capacity of the medium, thus extending the hours-to-wilt of plants growing in this medium. While hydrogel had no effect on plant height, flowering time, plant color, soil pH or soil nitrate concentration, plant weight and flower number did appear to increase between the control and highest hydrogel treatment. As hydrogel concentration within the medium increased, percent total seed germination and germination time increased.

The addition of hydrogel to media supplemented with time-released Osmocote did not affect plant growth or color.

Included in

Plant Biology Commons