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Effect of Inoculation with Azospirillum brasilense Strains on the Germination and Seedlings Growth of the Giant Columnar Cardon Cactus (Pachycereus pringlei)
María Esther Puente
YOAV BINYAMIN BASHAN GORODENTZIK
Acceso Abierto
Atribución-NoComercial-SinDerivadas
URL: https://dalspace.library.dal.ca/handle/10222/77332
ISSN: 0334-5114
Azospirillum, bacterial inoculation, beneficial bacteria, cactus, Cardon, Pachycereus, rhizosphere bacteria, plant-growth-promoting-rhizobacteria
"Wild Cardon cactus seeds were inoculated with Azospirillum brasilense strains Cd and Sp-245 to improve seed germination and seedling growth parameters. Differential germination responses were related to the bacterial strain. A. brasilense Cd ( the type strain for the species A. brasilense) significantly decreased seed germination. A. brasilense Sp245 ( a known beneficial bacteria for cereal plants) significantly increased the germination of the seedlings at the same inoculum concentration. Both bacterial strains improved several plant growth parameters related to seedling survivability (height, diameter, volumen and the volume/surface ratio) and decreased the aging process of the seedling spines. Both strains of A. brasilense survived in the cactus rhizosphere for about 300 days after seed inoculation. This study adds further evidence that A. brasilense should be considered as a non-specific beneficial bacteria and we propose the inoculation of Cardon cactus seeds as a possible means of enhancing seedling growth in nurseries."
1993
Artículo
Symbiosis
Inglés
BACTERIOLOGÍA
Versión publicada
publishedVersion - Versión publicada
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