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Rooting and vitality of poinsettia cuttings was increased by arbuscular mycorrhiza in the donor plants

Druege, Uwe; Xylaender, Marco; Zerche, Sigfried and von Alten, Henning (2006) Rooting and vitality of poinsettia cuttings was increased by arbuscular mycorrhiza in the donor plants. Mycorrhiza (17), pp. 67-72.

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Summary

In this paper, we provide evidence that the rooting performance of cuttings can be improved by the arbuscular mycorrhizal (AM) symbiosis of donor plants. Poinsettia stock plants were inoculated with the Glomus intraradices isolate H510 and grown in three different cultivation systems (two organic and one conventional). AM colonization was not related to P availability in the substrate. Decay of the excised cuttings in response to unfavorable postharvest storage conditions was significantly reduced by AM colonization of the stock plants. In most cases, AM significantly promoted the formation of adventitious roots in the stored cuttings. The strongest effect of AM was found when donor plants were grown in a modified organic substrate; then AM-conditioned cuttings showed higher leaf sugar levels and a changed kinetic of carbohydrates during storage. Analyses of N, P, and K in cuttings did not indicate a nutritional effect. The results support the idea that an altered carbohydrate metabolism and plant hormones can contribute to improved rooting performance of cuttings excised from mycorrhizal donor plants.
Published in Mycorrhiza(2006)17:67–72, (c) Springer-Verlag, 2006


EPrint Type:Journal paper
Keywords:BÖL, BOEL, FKZ 02OE265, Zierpflanzen, Stecklinge, Kulturführung, Pelargonie, Poinsettie, Inokulation, arbuskuläre Mykorrhiza, Arbuscular mycorrhiza, Stock plants, Cuttings, Rooting, Sugars
Subjects: Crop husbandry > Crop health, quality, protection
Crop husbandry > Breeding, genetics and propagation
Crop husbandry > Production systems > Ornamentals, flower bulbs and tree nurseries
Research affiliation: Germany > Federal Organic Farming Scheme - BOELN > Plants > Pflanzenzüchtung
Germany > Institute of Vegetable and Ornamental Crops - IGZ
Related Links:http://www.bundesprogramm-oekolandbau.de, http://www.bundesprogramm.de/fkz=02OE265, http://orgprints.org/perl/search/advanced?addtitle%2Ftitle=&keywords=02OE265&projects=BOEL&_order=bypublication&_action_search=Suchen
Deposited By: Drüge, Dr. Uwe
ID Code:15182
Deposited On:18 Jan 2009
Last Modified:12 Apr 2010 07:38
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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