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The Influence of Temperature On Meloidogyne Hapla and M. Javanica

The Influence of Temperature On Meloidogyne Hapla and M. Javanica THE INFLUENCE OF TEMPERATURE ON MELOIDOGYNE HAPLA AND M. JAVANICA BY ALAN F. BIRD AND H. R. WALLACE Horticultural Research Section, C.S.I.R.O., Glen Osmond, South Australia In a preliminary experiment four times as many M. javanica entered tomato roots as did M. hapla but their growth rates were not significantly different. Experiments on the influence of a range of temperatures on hatching, mobility, invasion and growth indicated that M. hapla had a thermal optimum of 25° C for hatching, 20° C for mobility and 15° C (8 hours) -20° C (16 hours) for invasion and grew well at 20° C (8 hours) -25° C (16 hours). M. javanica had a thermal optimum of 30° C for hatching, 25° C for mobility a wide temperature range for invasion and a thermal optimum of 25° C (8 hours) -30° C (16 hours) for growth. Thus, the two species have different temperature optima and in both species the stages of growth and development both in the egg and the plant have higher thermal optima than the stages exposed to the soil environment. Although there are no precise data on the relative abundance of M. javanica and M. hapla in different climatic http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

The Influence of Temperature On Meloidogyne Hapla and M. Javanica

Bird, Alan F.; Wallace, H.R.
Nematologica , Volume 11 (4): 9 – Jan 1, 1965
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529265X00726
Publisher site
See Article on Publisher Site

Abstract

THE INFLUENCE OF TEMPERATURE ON MELOIDOGYNE HAPLA AND M. JAVANICA BY ALAN F. BIRD AND H. R. WALLACE Horticultural Research Section, C.S.I.R.O., Glen Osmond, South Australia In a preliminary experiment four times as many M. javanica entered tomato roots as did M. hapla but their growth rates were not significantly different. Experiments on the influence of a range of temperatures on hatching, mobility, invasion and growth indicated that M. hapla had a thermal optimum of 25° C for hatching, 20° C for mobility and 15° C (8 hours) -20° C (16 hours) for invasion and grew well at 20° C (8 hours) -25° C (16 hours). M. javanica had a thermal optimum of 30° C for hatching, 25° C for mobility a wide temperature range for invasion and a thermal optimum of 25° C (8 hours) -30° C (16 hours) for growth. Thus, the two species have different temperature optima and in both species the stages of growth and development both in the egg and the plant have higher thermal optima than the stages exposed to the soil environment. Although there are no precise data on the relative abundance of M. javanica and M. hapla in different climatic

Journal

Nematologica – Brill

Published: Jan 1, 1965

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