Allowable Limit of auxin
- To: "Grape list" , "NAFEX List" , "PGR list ASHS" , "Propagation List" , "Plant Hormones List" , "Small Fruit List" , "Trickle List"
- Subject: Allowable Limit of auxin
- From: H*
- Date: Sun, 20 Feb 2000 10:27:38 -0500
- Importance: Normal
When applying to seeds:
What is the maximum (ie:ppm) of auxin (IBA)
which will inhibit seed germination of such crops such
sensitive crops as lettuce.
We have found that in furrow application of as little as
1-2 ppm IBA will reduce lettuce germination significantly
and
applications of 1/10 - 1/4 ppm will actually improve growth
of seeds which do germinate.
Is there a general rule?
regards
Joel
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