Wednesday, December 2, 2009

Why do some flowers bloom out of season?

It is because the irregular hormones in the plants. Some of the hormones are auxin, giberellins, cytokinins, and ethylene. There are many others but for you answer these hormones will help out. Fruit growers use to spray auxin to promote uniform flowering. Giberellians are used to initiate flowering and if there are too much then flowering can happen at the wrong times but also they can be used if the fruit trees are not maturing at the given time. Cytokinins can be used to delay aging in leaves or in other words it can delay the apical meristems in the plant. Ethylene can ripen fruit too soon and grow out of season.





I hope this helps you. I used flowering trees because it is easier to explain then to talk about flowers but the hormones I said can have the same affects on flowers.Why do some flowers bloom out of season?
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Why do some flowers bloom out of season?
for instance if you change their day/night pattern - it will induce a hormonal change in f篓the plant -it starts';thinking'; it is a different season. also under street lamps or other lights flores flower in weird seasons
Humans who understand various plant life cycles and the hormones needed for flowering and fruiting are able to get plants to bloom-flower at almost any time of year by adjusting the light, temperatur, humidity, etc to trick the plant into thinking it is a certain time of year, time to bloom. In nature, all pointsettias DO NOT bloom the week before Xmas. But the use of greenhouses and controlled laboratory setting of the greenhouse can help the plant INDUSTRY get the plants we want when we want em for our holiday use. Same with Easter lilies. By manipulating the light-temp and adding flowering hormones-chemicals and doing specific timings of cuttings, the plant can be ';controlled'; fairly well. It takes some research to get to know a plant's specific biochemistry and cycles. It is what lots of horticulturalists specialize in.

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