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M. Vanhelden ; W. Tjallingii ; A. Teris ; T. Vanbeek | 1994The chemical composition of phloem sap from lettuce, collected by three different methods, was compared. Phloem sap from stylectomy samples contained sucrose and 14 amino acids. Honeydew and EDTA chelation samples showed considerable breakdown o[...]
article/chapitre/communication
M. Vanhelden ; W. Tjallingii ; T. Vanbeek | 1994Three methods to collect phloem sap on different lettuce lines were optimized and are described in detail. The success ratio for stylectomy of aphids was over 80% through the combination of a specially designed setup and electrical penetration g[...]
