caa a22 4500 469042109 CHVBK 20180323132814.0 cr unu---uuuuu 170328e19920501xx s 000 0 eng 10.1007/BF01974381 doi (NATIONALLICENCE)springer-10.1007/BF01974381 The influence of drought and cyst nematodes on potato growth. 4. Effects on crop growth under field conditions of four cultivars differing in tolerance [Elektronische Daten] [A. Haverkort, M. Boerma, R. Velema, M. Van De Waart] In field experiments carried out in 3 years with and without fumigation and irrigation 4 cultivars of potato differed in their tolerance of cyst nematodes (Globodera pallida). Ground cover, tuber and foliage fresh and dry yields were determined at regular intervals. From these measurements, intercepted radiation, radiation use efficiency for production of total and tuber dry matter and the apparent amount of intercepted radiation at tuber initiation were calculated and compared for all the treatments. The results indicate that cultivars which best maintained ground cover in the absence of nematodes also maintain it best in the presence of nematodes. Such cultivars gave the highest yields at all levels of nematode infestation because the radiation use efficiencies were far less affected by nematodes than was intercepted radiation. The similarity of the responses to nematode infection and to drought and the absence of interaction between these two stress factors facilitated crop simulation modelling. The relationships found here may well be wider used, though they will have to be validated for other cultivars and growing conditions. Koninklijke Nederlandse Planteziektenkundige Vereniging, 1992 dry matter content nationallicence fumigation nationallicence Globodera pallida nationallicence harvest index nationallicence irrigation nationallicence radiation use efficiency nationallicence tolerance of damage nationallicence Haverkort A. Centre for Agrobiological Research (CABO-DLO), P.O. Box 14, 6700 AA, Wageningen, the Netherlands aut Boerma M. H.L. Hilbrands Laboratory for Soil-borne Pests and Diseases, P.O. Box 343, 9400 AH, Assen, the Netherlands aut Velema R. H.L. Hilbrands Laboratory for Soil-borne Pests and Diseases, P.O. Box 343, 9400 AH, Assen, the Netherlands aut Van De Waart M. Centre for Agrobiological Research (CABO-DLO), P.O. Box 14, 6700 AA, Wageningen, the Netherlands aut Netherlands Journal of Plant Pathology Kluwer Academic Publishers 98/3(1992-05-01), 179-191 0028-2944 98:3<179 1992 98 10658 https://doi.org/10.1007/BF01974381 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01974381 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Haverkort A. Centre for Agrobiological Research (CABO-DLO), P.O. Box 14, 6700 AA, Wageningen, the Netherlands aut NATIONALLICENCE 700 1- Boerma M. H.L. Hilbrands Laboratory for Soil-borne Pests and Diseases, P.O. Box 343, 9400 AH, Assen, the Netherlands aut NATIONALLICENCE 700 1- Velema R. H.L. Hilbrands Laboratory for Soil-borne Pests and Diseases, P.O. Box 343, 9400 AH, Assen, the Netherlands aut NATIONALLICENCE 700 1- Van De Waart M. Centre for Agrobiological Research (CABO-DLO), P.O. Box 14, 6700 AA, Wageningen, the Netherlands aut NATIONALLICENCE 773 0- Netherlands Journal of Plant Pathology Kluwer Academic Publishers 98/3(1992-05-01), 179-191 0028-2944 98:3<179 1992 98 10658 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer