grow light bulbs - Page 2

dmforcier · April 9, 2017

The "Foliage Growth" and "Flowering" labels are added to the rest of the chart (which is very useful, thanks).** Tomato growers are in no way as interested in "flowering" as are pot growers. Tomato flowers are not the cash crop.

An interesting composite chart would be to overlay this one with the radiated spectra of common lamps.

** If you want to promote this urban myth(?), then you need to go to primary sources.

slugworth · April 9, 2017

I believe it's the transition of daylight time that triggers the flowering vs. spectrum.
I have tomato plants in a sunny south window and the diminishing daylight per day caused them to flower in November last year.
Now that daylight is increasing daily,they are flowering again.
On a side note, I was moving the plants out of the window to make room for more and one of the tops snapped off.Like a 1 foot hunk that I put in wet potting soil and hopefully can clone to keep it going.

dmforcier · April 9, 2017

It should root and be happy. Good luck with it!

Do you have rooting hormone? The stuff is like magic.

slugworth · April 9, 2017

They are plants from 4th of july hybrid saved seeds and the plants seem hardy.
For that size no sign of droop.
No hormones,I just keep the soil wet until rooted.
I was moving them to get them ready for hardening off.
Getting back to lights,did anybody ever try sun lamps on plants to get them prepared for sunlight?

Gardeneer · April 9, 2017

I usually root cuttings ( various things ) under indirect/defused light.
But then grow light should be fine as it give out very little heat.
In July/August I root tomato shoots in the shade. Once rooted give them direct light.

slugworth · April 9, 2017

warm earth is the key,I take advantage of the summer heat for cloning also.

Durgan · April 14, 2017

5 April 2017 LED light (Plant Growing)
Posted on April 5, 2017 by Durgan
http://durgan.org/2017/April%202017/5%20April%202017%20LED%20light/HTML/a> 5 April 2017 LED light

Four growing containers were made to facilitate small plant growth. There is room for six pots in each bucket for a total of 24 which is a reasonable amount for a home grower. Various seeds are started and grown to a reasonable size prior to placing in outdoor garden about May 25. Experimentation indicates the light is adequate for the purpose indicated, precluding much more expensive lights. Main advantage being very little heat is produced by LED lights.

Details of construction. The parts used were obtained locally 22 liter bucket beverage trade, 110 volt fan ordered off the internet, LED lamp from the local hardware store. lamp fitting a trouble lamp cord and socket. Vent holes and fan hole were made using a soldering iron and melting the plastic as required. Approximate cost: bucket $3.00, fan $25.00,LED Lamp $40.00,lamp electrical fitting $12.00. Total cost ~$80.00.They should last several years. Power consumption LED and fan is about 35 watts.

April 9, 2017	#16
dmforcier Tomatovillian™ Join Date: Apr 2016 Location: Dallas, TX Posts: 3,825	The "Foliage Growth" and "Flowering" labels are added to the rest of the chart (which is very useful, thanks).** Tomato growers are in no way as interested in "flowering" as are pot growers. Tomato flowers are not the cash crop. An interesting composite chart would be to overlay this one with the radiated spectra of common lamps. ** If you want to promote this urban myth(?), then you need to go to primary sources. __________________ Stupidity got us into this mess. Why can't it get us out? - Will Rogers Last edited by dmforcier; April 9, 2017 at 01:31 PM.

April 9, 2017	#18
dmforcier Tomatovillian™ Join Date: Apr 2016 Location: Dallas, TX Posts: 3,825	It should root and be happy. Good luck with it! Do you have rooting hormone? The stuff is like magic. __________________ Stupidity got us into this mess. Why can't it get us out? - Will Rogers

April 9, 2017	#20
Gardeneer Tomatovillian™ Join Date: Feb 2015 Location: NC - zone 8a - heat zone 7 Posts: 4,919	I usually root cuttings ( various things ) under indirect/defused light. But then grow light should be fine as it give out very little heat. In July/August I root tomato shoots in the shade. Once rooted give them direct light. __________________ Gardeneer Happy Gardening !

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April 9, 2017	#17
slugworth Tomatovillian™ Join Date: Oct 2014 Location: connecticut,usa Posts: 1,152	I believe it's the transition of daylight time that triggers the flowering vs. spectrum. I have tomato plants in a sunny south window and the diminishing daylight per day caused them to flower in November last year. Now that daylight is increasing daily,they are flowering again. On a side note, I was moving the plants out of the window to make room for more and one of the tops snapped off.Like a 1 foot hunk that I put in wet potting soil and hopefully can clone to keep it going.

April 14, 2017	#22
Durgan Tomatovillian™ Join Date: Feb 2013 Location: Brantford, ON, Canada Posts: 1,341	5 April 2017 LED light (Plant Growing) Posted on April 5, 2017 by Durgan http://durgan.org/2017/April%202017/5%20April%202017%20LED%20light/HTML/a> 5 April 2017 LED light Four growing containers were made to facilitate small plant growth. There is room for six pots in each bucket for a total of 24 which is a reasonable amount for a home grower. Various seeds are started and grown to a reasonable size prior to placing in outdoor garden about May 25. Experimentation indicates the light is adequate for the purpose indicated, precluding much more expensive lights. Main advantage being very little heat is produced by LED lights. Details of construction. The parts used were obtained locally 22 liter bucket beverage trade, 110 volt fan ordered off the internet, LED lamp from the local hardware store. lamp fitting a trouble lamp cord and socket. Vent holes and fan hole were made using a soldering iron and melting the plastic as required. Approximate cost: bucket $3.00, fan $25.00,LED Lamp $40.00,lamp electrical fitting $12.00. Total cost ~$80.00.They should last several years. Power consumption LED and fan is about 35 watts.