why were plants kept in the dark for 48 h?

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why were plants kept in the dark for 48 h?

2007-02-03 01:33:18 · 3 answers · asked by >() 1 in Science & Mathematics ➔ Botany

3 answers

A period of darkness triggers flowering. A good example of this is the pointsettia that we have for christmas. In order to get the plant to bloom red growth prior to xmas season, growers adjust the amount of darkness in the greenhouses.

2007-02-03 03:16:53 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Canopy respiration fell to a minimum after 24 to 48-h in the dark and the plants were surprisingly tolerant of prolonged darkness.

2007-02-03 10:54:23 · answer #2 · answered by babitha t 4 · 0⤊ 1⤋

Something to do with photosynthesis?

2007-02-03 10:27:48 · answer #3 · answered by bio rocks! 3 · 0⤊ 1⤋