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Extractability of gibberellin-like substances from tulips grown at two temperatures in either the light or dark

, : Extractability of gibberellin-like substances from tulips grown at two temperatures in either the light or dark. Acta Horticulturae (47): 297-305

Bulbs of the tulip Paul Richter were rooted and cooled for 15 weeks at 9 deg C in the dark. After an initial sampling, batches were transferred to either continuous light or dark conditions each at either 9 or 17 deg for one week. Compared with dark-grown bulbs, light-grown bulbs showed a greater increase in shoot fresh weight. However, the scapes were longer in the dark. The highest GA-activity was found in extracts from plants grown in the dark at 17 deg.

Accession: 000374766

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