Abstract
ABSTRACT Fleshy roots of asparagus (Asparagus officinalis L.) seedlings were analyzed from August 1999 to May 1991 (6 to 15 months after seeding) to determine dry matter, total, and reducing sugars. Significant seasonal changes were observed in all variables. Sugar concentration decreased as the reserves were used to support formation of new buds, shoots and roots in September as well as initiation of new bud and shoot growth in March. Sugar concentration increased from April to August and from October to November, when the fern expanded and became well developed. A sharp decrease of sugars was observed in December, probably due to high temperatures during that period permitting continued root metabolism and to the absence of net sugar storage resulting from fern senescence by the end of November. The unexpected rise in sugar levels observed in late winter might suggest a physiological role for sugars in the sprouting of the dormant buds. The root dry matter decreased from August to September (period of d...
Published Version
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