RESPONSE OF SIRATRO TO VESICULAR-ARBUSCULAR MYCORRHIZAL FUNGI: II. EFFICACY OF SELECTED VESICULAR-ARBUSCULAR FUNGI AT DIFFERENT PHOSPHORUS LEVELS.

O. A. Medina, D. M. Sylvia, A. E. Kretschmer

Research output: Contribution to journalArticle

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Abstract

The effect of two selected species of vesicular-arbuscular mycorrhizal (VAM) fungi, Glomus etunicatum and Glomus intraradices, on the growth of Macroptilium atropurpureum Urb. cv. Siratro in nonpasteurized soil with applied P levels of 2. 5, 10, 20, and 40 mg kg** minus **1 was studied under greenhouse conditions. At 2. 5 mg kg** minus **1 of applied P, there was no difference in the shoot dry and root fresh weights between inoculated and control plants. At all but 2. 5 mg kg** minus **1 of applied P, plants inoculated with either G. etunicatum or G. intraradices had higher shoot dry and root fresh weights than the control. There was a significant correlation between shoot dry weight and mycorrhizal root colonization of Siratro, expressed as either percentage or total root length colonized, for all inoculated treatments. We conclude that inoculation with effective VAM fungal species can significantly increase the growth of Siratro over a practical range of P in soils that have an ineffective indigenous population of VAM fungi under amended soil conditions.

Original languageEnglish (US)
Pages (from-to)420-423
Number of pages4
JournalSoil Science Society of America Journal
Volume52
Issue number2
DOIs
StatePublished - Jan 1 1988

All Science Journal Classification (ASJC) codes

  • Soil Science

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