Premium
Leaf wall area and leaf area in cucumber, eggplant, sweet pepper and tomato grown in greenhouses in S witzerland
Author(s) -
Rueegg J.,
Jermini M.,
Total R.,
Scettrini S.
Publication year - 2012
Publication title -
eppo bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.327
H-Index - 36
eISSN - 1365-2338
pISSN - 0250-8052
DOI - 10.1111/epp.12003
Subject(s) - pepper , greenhouse , crop , biology , agronomy , horticulture
Various methods for the harmonization of the registration of crop protection products and dose adjustments in high growing crops have been discussed over many years. The leaf wall area ( LWA ) method has been known for some years already but it has received renewed attention due to a proposal by the E uropean agrochemical manufacturing industry for harmonizing the dose expression in view of the new zonal registration system in the EU . The LWA method appears not only suitable for fruit trees and vineyards, but may also prove a simple and widely accepted method for dose adjustments in high growing vegetable crops particularly in greenhouses. This paper provides a dataset on leaf wall area and leaf area development for a selection of commercially grown cucumber, eggplant, sweet pepper and tomato varieties in S witzerland. Relationships between leaf wall area and leaf area have been established. A tentative product dose adjustment to growing vegetable crops in greenhouses is given for S witzerland. Biological efficacy trials will be required to validate the LWA method.