Studies on a new method, employing a portable battery-powered Bouyoucos bridge and a needle electrode clamp cell, to estimate the vigour of apple rootstocks from the electrical resistances of living twigs, were carried out in 1959 and 1960. The electrical resistances of past year's twigs of 14 rootstook varieties were arranged in the following order: Kerr, K.XVI, O-524, M. Robusta No.5, M.XIII, M.XII, M.I, M.3430, M.II, M.VII, M.3428, K.3436, M.IX and M.3426. There were significant differences between major vigour groups.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.113425 |
| Date | January 1961 |
| Creators | Keng, Ro-siu. L. |
| Contributors | Taper, C. (Supervisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science. (Department of Agriculture.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: NNNNNNNNN, Theses scanned by McGill Library. |
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