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The effect of glyphosate on frond regeneration, bud development and survival, and storage rhizome starch content in bracken
Author(s) -
ALJAFF D. M. A.,
COOK G. T.,
STEPHEN N. H.,
ATCHISON T. C.,
DUNCAN H. J.
Publication year - 1982
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1982.tb00828.x
Subject(s) - bracken , rhizome , frond , biology , glyphosate , starch , botany , dry weight , agronomy , horticulture , food science , fern
SUMMARY In addition to very effectively suppressing bracken frond regeneration for two years at levels of 2.24 kg a. i./ha and above, glyphosate had considerable effects on the rhizome system. Dry weight of frond‐bearing rhizomes, number of living apices and developed buds, number and viability of dormant buds and starch content of storage rhizomes were all markedly reduced. The effects on dormant buds and starch content are particularly important when considering frond regeneration and as a consequence of these, glyphosate is likely to give long lasting control of bracken. Low levels of glyphosate (0.02 and 0.07 kg a. i./ha) did not stimulate bracken growth, while the addition of NH 4 SCN apparently inhibited the action of the sub‐lethal rate of 0.56 kg a. i./ha.