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The Relationship Between Potato Root Growth and Reproduction of Globodera Rostochiensis (Woll.)

The Relationship Between Potato Root Growth and Reproduction of Globodera Rostochiensis (Woll.) THE RELATIONSHIP BETWEEN POTATO ROOT GROWTH AND REPRODUCTION OF GLOBODERA ROSTOCHIENSIS (WOLL.) BY G. W. STOREY Luton College of Higher Education, Luton, England An experiment is described in which the soil surrounding a potato plant was separated into 147 blocks, 10 weeks after planting. Percentage hatch was inversely related to root development, this being related to the position within the root system. The production of new females is seen to be correlated with total root production but not to main: lateral root ratios. From a total develop- ment of 82.334 g (298.17 m) of root 67,956 new females were produced, a multiplication factor of 0.87 with the egg content having a multiplication rate of 3.1. It is generally accepted that the sex ratio of Globodera rostochiensis is en- vironmentally determined, with the probability of any one juvenile becoming a female being greater in the main roots where the competition for transfer cell sites would be less, than in the thinner lateral roots (Trudgill, 1967; Trian- taphyllou, 1973; Bridgeman & Kerry, 1980). Little is known about the relationship between potato root growth and population changes of potato cyst nematode. Weaver (1926) and Lesczynski & Tanner (1976) have attempted to http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

The Relationship Between Potato Root Growth and Reproduction of Globodera Rostochiensis (Woll.)

Storey, G.W.
Nematologica , Volume 28 (2): 9 – Jan 1, 1982
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529282X00060
Publisher site
See Article on Publisher Site

Abstract

THE RELATIONSHIP BETWEEN POTATO ROOT GROWTH AND REPRODUCTION OF GLOBODERA ROSTOCHIENSIS (WOLL.) BY G. W. STOREY Luton College of Higher Education, Luton, England An experiment is described in which the soil surrounding a potato plant was separated into 147 blocks, 10 weeks after planting. Percentage hatch was inversely related to root development, this being related to the position within the root system. The production of new females is seen to be correlated with total root production but not to main: lateral root ratios. From a total develop- ment of 82.334 g (298.17 m) of root 67,956 new females were produced, a multiplication factor of 0.87 with the egg content having a multiplication rate of 3.1. It is generally accepted that the sex ratio of Globodera rostochiensis is en- vironmentally determined, with the probability of any one juvenile becoming a female being greater in the main roots where the competition for transfer cell sites would be less, than in the thinner lateral roots (Trudgill, 1967; Trian- taphyllou, 1973; Bridgeman & Kerry, 1980). Little is known about the relationship between potato root growth and population changes of potato cyst nematode. Weaver (1926) and Lesczynski & Tanner (1976) have attempted to

Journal

Nematologica – Brill

Published: Jan 1, 1982

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