Investigation of grapevine root distribution by <i>in situ</i> minirhizotron observation

Authors

  • A. Linsenmeier
  • R. Lehnart
  • O. Löhnertz
  • H. Michel

DOI:

https://doi.org/10.5073/vitis.2010.49.1-6

Keywords:

root observation, Vitis, measurement accuracy, root distribution

Abstract

Root observations of Vitis berlandieri x Vitis riparia were conducted in two experimental sets using minirhizotron technique. Experiment 1 was a field experiment carried out on a 12 years old Riesling/5C vineyard. On six plants three minirhizotrons were installed at different angles (90°, 60°, 45°) and two directions per tube were used for observation. The maximum of root length density (RLD) was found in soil depths of 600-800 mm with high variation mainly due to plant x angle interaction. Observation direction did not influence the estimates of RLD. The installation angle of the tubes did not lead to any consistent effect on root observation. Experiment 2 was a pot trial of six pots with four vines each. Tubes were installed horizontally. RLD in the pot experiment according to the monolith method and the estimated RLD according to the minirhizotron method did not correlate, so the quantification of Vitis RLD distribution using minirhizotron is difficult.

 

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Published

2015-04-07

Issue

Vol. 49 No. 1 (2010): Vitis

Section

Article

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