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REFORESTATION AND SEEDLING SYMBIONTS
Citation:
Mexal, J. AND R. Dixon. REFORESTATION AND SEEDLING SYMBIONTS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-90/020 (NTIS PB90221664), 1990.
Description:
Tree seedlings are dependent on symbiotic associations with microorganisms including bacteria, fungi, and actinomycetes for normal growth and development. itrogen fixing leguminous and non-leguminous trees form symbiotic relationships with Rhizobium (bacteria) and Frankia (actinomycete), respectively. pecialized soil-borne fungi from many different taxa form mycorrizal relationships with trees. Because the benefits derived from different species or isolates vary for a given site or tree, manipulation of these microorganisms can improve uniformity and yield of nursery crops. noculation of tree seedlings with symbiotic associates has dramatically improved the early growth and survival of tree seedlings on adverse reforestation sites around the world. atching of tree species and site conditions with appropriate symbionts has been a key to this success. Consideration and possible application of this technology in India offers an opportunity to improve tree establishment on substandard soils.
