The objective of this research was the selection of the most efficient arbuscular mycorrhizal (AM) fungus on pepper (Capsicum frutescens L. cv. North star) and sweet corn (Zea mays L. cv. Bicolor) growing under controlled and field conditions. The inoculum treatments consisted of 9 different AM inocula and an autoclaved mix of roots and sand used as a control. Plants were inoculated and planted in a pasteurized growth medium (greenhouse) and non-fumigated soil in 4 different field locations for each crop. Glomus intraradices (GinA) and both the same strain (GinA) and a mix of Sclerocysitis rubiformis and G. fasciculatum (Sru$+$) developed the highest AM colonization in sweet corn and pepper, respectively, under controlled conditions. However, no significant increases in growth were found compared with non-mycorrhizal plants. Only a mix of G. microagreggatum, G. mosseae and G. fasciculatum (Gmi+) produced a greater shoot dry mass compared with the control treatment in sweet corn under controlled conditions. None of the mycorrhizal strains used in the field experiments increased the growth of sweet corn or pepper compared with non-inoculated plants under field conditions.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.27492 |
| Date | January 1997 |
| Creators | Barnola, Luis. |
| Contributors | Smith, Donald L. (advisor) |
| 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 Plant Science.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001618621, proquestno: MQ37090, Theses scanned by UMI/ProQuest. |
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