Leaf color and vine size are related to yield in a phylloxera-infested vineyard

Authors

  • R. Baldy
  • J. DeBenedictis
  • L. Johnson
  • E. Weber
  • M. Baldy
  • B. Osborn
  • J. Burleigh

DOI:

https://doi.org/10.5073/vitis.1996.35.201-205

Keywords:

Phylloxera infestation, yield estimation, canopy spectra, chlorophyll, pruning weight

Abstract

The uneven spread of phylloxera infestation and associated vine symptoms in vineyards usually complicates yield estimates and vineyard replacement decisions. In a Cabernet Sauvignon vineyard with AXR#1 rootstock the current season's and following season's yields of 40 vine plots correlated (r ≥ 0.77, p ≤ 0.05) with early to midseason leaf and canopy spectra measured in the field, laboratory and remotely with aircraft-borne sensors.

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Published

2015-08-13

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