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A note on seed trays/cells.


 
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paul5000
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PostPosted: Mon Mar 29, 2010 11:59 am    Post subject: A note on seed trays/cells. Reply with quote
I have sown various types of seed in both black and green seed trays/cells in a poly tunnel..
Have being taking temp readings at night and have found that the black ones have a higher temp of about 1deg C. than the green. They must absorb sun better in the day.
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OffalyGoodLife
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PostPosted: Mon Mar 29, 2010 6:52 pm    Post subject: Reply with quote
Very interesting. Do you notice a difference in germination dates (you'd imagine the warmer black ones would encourage earlier germination)? What about germination rates and seedling growth? Definitely worth experimenting with.
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davidh
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PostPosted: Mon Mar 29, 2010 7:29 pm    Post subject: Re: A note on seed trays/cells. Reply with quote
paul5000 wrote:
I have sown various types of seed in both black and green seed trays/cells in a poly tunnel..
Have being taking temp readings at night and have found that the black ones have a higher temp of about 1deg C. than the green. They must absorb sun better in the day.


An excellent tip ! Thanks for this.
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