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Photoperiodic floral induction and glucose content changes in spinach mustard and chenopodium rubrum plants


, : Photoperiodic floral induction and glucose content changes in spinach mustard and chenopodium rubrum plants. Botanica Helvetica 99(1): 73-80

In long day plants such as spinach or mustard cultivated under short-day conditions (8 h of light), the lengthening of the photoperiod results in a very large increase in glucose content which starts when the approximate floral photoperiod is reached. In the short day plant Chenopodium rubrum subjected to a transfer from continuous light to darkness, the glucose content decreases according to a mirror image of what is observed in the long day plants. These results suggest that photoperiodic induction is characterized by a common modification of the carbohydrate metabolism and/or by a change in their compartmentation.

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