The Orchid Forum, for the UK and Europe (previously known as The UK Orchid Forum) • View topic - Lighting!!
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 Post subject: Lighting!!
PostPosted: Wed Dec 30, 2015 6:11 pm 
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Started an experiment some three months ago with lighting. I set up some large multifloral paphs under two powerglo 40w t8's both emitting 18000k of bright bluish light. They are about 10" below the lights which are on about 13hours per day, The plants seem to be growing very well and producing several new growths. The lights are not producing any additional warmth. I was just wondering if I am giving too much light and forcing the plants into growth. With this much light should I be feeding more often?? Any replies will be most welcome.

Ed


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 Post subject: Re: Lighting!!
PostPosted: Fri Jan 01, 2016 12:48 pm 
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Probably run out of new things to post
Probably run out of new things to post
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Sorry Ed paphs are just not my thing as far as expertise in growing goes. In general though the more a plant is growing then the more I would feed. Most of the plants I grow need a seasonal rest or change in temp and light from winter to summer in order to bloom. So 13 hrs of light in the winter would probably do them no good.

I do grow some catts under lights plus some seedling cyms and I feed and water these throughout the winter as they remain in growth.

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 Post subject: Re: Lighting!!
PostPosted: Fri Jan 01, 2016 7:49 pm 
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Most of the tropics gets similar amounts of light all year. The monsoonal areas actually get more sunshine in winter than in summer. Especially in deciduous forests that drop leaves due to the dryness. As allways it depends on the actual species or parents of the hybrid concerned but i can't see that plenty of light would do any harm.

Even in a tropical 'winter', light levels in the tropics are far higher than we get here in summer (we just get more hours).


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