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- Title
EFFECT OF TEMPERATURE ON THE ACTIVITY AND PERSISTENCE OF AMITROLE AND 2,4-D.
- Authors
Muzik, T. J.
- Abstract
One leaf of each of several tomato plants 5-6 weeks old maintained at 55, 70 or 85° F was dipped in 0.05 M amitrole or 0.005 M 2,4-D solution. The treated leaf was removed 1 week later. Scions taken from untreated plants were grafted to the treated plants at intervals up to 4 months after treatment. Amitrole-treated plants maintained at 55° F were killed within 1 month but those at 70 and 85° F recovered. Plants treated with 2,4-D showed typical symptoms when maintained at 70 and 85° F but no symptoms at 55° F. Scions grafted on plants maintained at 55, 70 and 85° F for 60 days after 2,4-D treatments exhibited typical symptoms. Grafts made more than 60 days following the 2,4-D application did not exhibit symptoms except a slight malformation on the plants held at 55° F. New growth on the scions grafted up to 103 days after amitrole treatment on plants which had been maintained at 70 and 85° F exhibited typical amitrole symptoms (i.e. white foliage) but scions grafted after this time did not. New shoots developing from buds on the treated plants also produced green growth 115 days after treatment but produced white foliage prior to that time.
- Subjects
TOMATOES; EFFECT of temperature on plants; LEAF growth; PLANT growth-promoting rhizobacteria; LEAVES
- Publication
Weed Research, 1965, Vol 5, Issue 3, p207
- ISSN
0043-1737
- Publication type
Article
- DOI
10.1111/j.1365-3180.1965.tb00345.x