Rooting of jujube (Ziziphus jujuba mill) li variety cuttings, using some root promoting microorganisms and plant growth regulators [electronic resource].

Includes reference.

This study was conducted at the experimental nursery of the Horticulture Research Institute at Giza, Egypt to study the effect of plant growth promoting rhizobacteria (PGPR) and plant growth regulators on rooting of jujube cuttings during 2008 and 2009 seasons. Sub-terminal cuttings were taken on mid April from mature 15- years old trees of jujube (Ziziphus Jujuba Mill) Li variety (difficult to root). Rooting treatments included inoculation with Bacillus polymyx, Bacillus circulance, Bacillus megatenum, Bacillus pasteruii, Pseudomans florescence or mixed inoculants from previous PGPR strains or yeast (Saccharomyces cerevisae). In addition, Indole-3Butyric Acid (IBA) and Naphthalene Acetic Acid (NAA) were also tested at concentration of 1000 and 2000 ppm as compared with untreated (control). Data showed that the effect of Bacillus megaterium as PGPR resulted in the highest significant rooting percentage (60% and 50%). After eight months of transplanting, bacterial strain (Bacillus megaterium) followed by Pseudomans strain surpassed the other treatments in survival percentage, average number of roots/transplant, stem and root length, number of leaves, number of branches/transplant as well as leaves, stem and root fresh and dry weight (g).

Summary in Arabic.

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