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Carbohydrate Reserves in Mertensia Arizonica as Related to Growth, Temperature, and Clipping Treatments
Author(s) -
McDonough Walter T.
Publication year - 1969
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1933893
Subject(s) - carbohydrate , clipping (morphology) , biology , botany , zoology , biochemistry , philosophy , linguistics
Growth of aerial stems and carbohydrate content of the caudices of Mertensia arizonica var. Leonardi were determined at several stages of development under controlled conditions. Carbohydrate analyses were made similarly for field—grown plants, with and without single clipping treatments at several stages of development. Best growth and accumulation of carbohydrate occurred at controlled temperature alternations of 20°C (day) and 10°C (night). The trends in carbohydrate levels were the same for growth under controlled conditions and in the field: an initial decrease during early vegetative growth followed by an increase to the time of senescence of aerial stems. Single clipping treatments had no effect on carbohydrate levels nor on the timing of utilization and storage.