Study of Gluconacetobacter diazotrophicus-tropical vegetable association in a Red Ferralitic soil. I. Effective strains selection for biofertilizing sweet potato, cassava and taro

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Published: Jul 9, 2012
Keywords:
nitrogen fixing bacteria, endophytes, slection, plant growth stimulants, biofertilizers, root vegetables

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B. Dibut
Instituto de Investigaciones Fundamentales en Agricultura Tropical

Abstract

In recent years, the international scientificcommunity has an increasing interest for the endophyticbacterium Gluconacetobacter diazotrophicus, an atmosphericnitrogen-fixing microorganism, which is also a producer of cropgrowth-promoting substances. Therefore, taking into accountits agrobiologic potential and the scarce studies about theeffect that may provoke the application of productsmanufactured through the effective strain fermentation, thisinvestigation was laid out, with the aim of selecting an effectivestrain of Gluconacetobacter diazotrophicus to promotetropical vegetable growth, development and yield, such assweet potato (Ipomea batatas Lam.), cassava (Manihotesculenta, Crantz) and taro (Xanthosoma spp.), cultivated ona Red Ferralitic soil. INIFAT Abn1, isolated from sweet potatocrop, was the most promising strain to increase all indicatorsin the three crops, with higher promoting values between 23and 46 %. The significance of having a wide diversitycollection to perform an adequate selection was proved, aswell as the non-existence of a direct relationship of crop origin-strain effectiveness.

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How to Cite
Dibut, B. (2012). Study of Gluconacetobacter diazotrophicus-tropical vegetable association in a Red Ferralitic soil. I. Effective strains selection for biofertilizing sweet potato, cassava and taro. Cultivos Tropicales, 31(4), 51–57. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/77
Issue
Vol. 31 No. 4 (2010)
Section
Original Article

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