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tomato plants


 
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tunnelsofhens10
Rank attained: Rowan Tree
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Joined: 07 Jun 2011
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Location: Longford

PostPosted: Fri May 11, 2012 5:13 pm    Post subject: tomato plants Reply with quote

Hi all, Wondering whats happening my young tomato plants, grew them from seed,looked fine and healthy, transplanted them to 3inch peat pots transfered them to the tunnel, placed them into plastic lined boxes, (for watering from below) Had aheating lamp for cold nights, and now? they seem to be growing well but, the underside of the leaves have turned Purple. never had this problem before, Any help please.
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michael brenock
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Joined: 12 Aug 2008
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Location: cork

PostPosted: Fri May 11, 2012 10:35 pm    Post subject: Reply with quote

This purpling is due to fluctuation of temperatures. Even though you say you have a heater present it is not sufficient to raise the temperature to get them growing satisfactorily. Don't worry about them from now on as the air temperature should be rising. Make sure the soil is free-draining as waterlogging keeps root temperature down. Feed when growing conditions improve.
michael brenock horticultural advisor (retired)

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tunnelsofhens10
Rank attained: Rowan Tree
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Joined: 07 Jun 2011
Posts: 146
Location: Longford

PostPosted: Sun May 13, 2012 4:26 pm    Post subject: Reply with quote

Thanks Michael, Was worried because I was drawing rainwater from a new IBC, and was nervous the container was contaminated. Will start useing it again. (You just saved me 1000ltrs of the best water on the planet) again thanks. Very Happy
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dormouse
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PostPosted: Sun May 13, 2012 8:54 pm    Post subject: Reply with quote

Are you using fleece at night? It will help keep them snug through these awful nights.
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tunnelsofhens10
Rank attained: Rowan Tree
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Joined: 07 Jun 2011
Posts: 146
Location: Longford

PostPosted: Mon May 14, 2012 5:36 pm    Post subject: Reply with quote

Yes, thanks dormouse, started last week. I now know what the Mammy meant when she said she was blue with the cold! A bit more TLC needed this weather.
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yaut
Rank attained: Hazel Tree
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Joined: 16 Mar 2012
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Location: Co. Wicklow

PostPosted: Thu May 17, 2012 3:41 pm    Post subject: Reply with quote

sorry for high jacking your thread but I really didn't want to create new one.

these are my tomato plants in the greenhouse:




as you can see in the pics, the bottom leaves are yellowing and dying off. are they cold too? or what's wrong with them? Is it ok to cut the bottom leaves off? I don't think plants are benefiting from them anyway Sad I re-planted them into greenhouse on 26th of april.

oh, and not all the things are so sad. look at this:

these early tomato plants went into greenhouse in the middle of march. I expected them to give up but nope, they're doing very well instead. I wished they were my main crop!
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michael brenock
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Joined: 12 Aug 2008
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PostPosted: Thu May 17, 2012 5:44 pm    Post subject: Reply with quote

The tomato plants look starved lacking Nitrogen in particular as leaves are small and large spaces between leaves, similar symptoms to lack of direct sunlight. Do not overwater them in cold cloudy weather. Feed once a week.
michael brenock horticultural advisor (retired)

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yaut
Rank attained: Hazel Tree
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Joined: 16 Mar 2012
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Location: Co. Wicklow

PostPosted: Thu May 17, 2012 9:08 pm    Post subject: Reply with quote

thanks for your advice, Micheal. I'll try adding some more tomato fertilizer next time watering (I was adding it before, but probably not enough).and yeah, they were lacking of sun when I started them indoors, small windowsills and too many plants.
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