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- Title
HOT-WATER TREATMENT OF STRAWBERRY RUNNERS.
- Authors
Staniland, L. N.
- Abstract
This article focuses on a study by D. R. Barber on the hot-water treatment at Seale Hayne Agricultural College in 1936 for strawberry plants attacked by leaf and bud eelworms, Aphelenchoides fragariae and Aphelenchoides ritzema-bosi. Some strawberries suffer from attacks by the stem and bulb eelworm called Ditylenchus dipsaci. The method used in 1936 for the determination of the rate of penetration of heat into the tissues of strawberry runners was similar to that used on work in the heat treatment of bulbs. The temperature of the growing-point region in the crown of the runner was recorded by means of a pair of differential thermocouples mounted in a suitable holder and used in conjunction with a low-resistance moving coil galvanometer. The materials used in the method are two copper-nickel thermocouples made from wire, the nickel wire being bare and the copper wire enamelled. The wires were spot-welded at their junctions and enclosed in bent hypodermic needles, sealed at their ends. One needle was inserted into the plant material so that the point reached to the depth desired. The other needle, used as a standardizing couple, was maintained at the temperature of the water. The apparatus was mounted on vertical staging, with a rack and pinion for lowering it into the bath.
- Subjects
APHELENCHOIDES; NEMATODES; DITYLENCHUS dipsaci; STRAWBERRIES; AGRICULTURAL pests; PLANTS
- Publication
Plant Pathology, 1953, Vol 2, Issue 2, p44
- ISSN
0032-0862
- Publication type
Article
- DOI
10.1111/j.1365-3059.1953.tb00637.x