A porous agar medium for improving the growth of plants under sterile conditions

Document Type

Article

Publication Date

5-1988

Journal Title

Plant and Soil

ISSN

Print: 0032-079X Electronic: 1573-5036

Keywords

gaseous diffusion, root growth, sterile agar medium, Trifolium subterraneum

Disciplines

Agronomy and Crop Sciences

Abstract

Porous nutrient agar was prepared under sterile conditions by drawing molten 3.5% (w/v) nutrient agar into a plastic syringe, allowing it to set, extruding it into a test tube and giving the tube a firm flick. Simple colorimetric tests showed that gaseous diffusion was substantially faster through 3.5% (w/v) porous agar than through the 1% (w/v) non-porous agar frequently used for growing plants under sterile conditions. Root systems of Trifolium subterraneum grew 80–90% larger in porous than in non-porous agar.

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Digital Object Identifier (DOI)

https://doi.org/10.1007/BF02375663