Do the roots of perennial ryegrass elongate to biopores filled with the casts of endogeic earthworms?

J. R. Hirth, B. M. Mckenzie, J. M. Tisdall

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

Earthworm casts deposited in burrows may stimulate plant roots to elongate preferentially tot hose burrows. A model experiment was conducted with an artificial, impenetrable subsoil in which vertical holes were left empty, filled with earthworm casts, or filled with fertile soil. The roots of perennial ryegrass had elongated down through an aggregate seedbed and were deflected horizontally when they reached the artificial subsoil. After six days, approximately 6% of the roots that were deflected sideways, met with holes in the subsoil. However, the number of roots that met with holes filled with either casts, or soil, was not significantly different from the number of roots that met with empty holes. Under the conditions of our model system, there was no evidence that ryegrass roots elongated preferentially to and entered holes filled with earthworm casts.

Original languageEnglish
Pages (from-to)529-531
Number of pages3
JournalSoil Biology and Biochemistry
Volume29
Issue number3-4
DOIs
Publication statusPublished - Mar 1997

Fingerprint Dive into the research topics of 'Do the roots of perennial ryegrass elongate to biopores filled with the casts of endogeic earthworms?'. Together they form a unique fingerprint.

Cite this