Hickley, J.S. and Krueger, W.A. (1974) Alachlor and 1,8-naphthalic anhydride effects on sorghum seedling development. Weed Science, 22 (1). pp. 86-90.
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Abstract
The time of coleorhiza emergence through the pericarp of sorghum germinated on blotters in the dark was not affected by 1-25 ppm. of alachlor, by 2% naphthalic anhydride (NA) seed treatment, or their combinations. Coleoptile emergence was delayed slightly by NA alone and in combination with alachlor, but not by alachlor alone. Emergence of the primary leaf from the coleoptile was inhibited by alachlor treatments in the presence of NA and even more so in its absence. Various degrees of leaf distortion resulted when plants not exhibiting leaf emergence were placed in light, the severity of distortion increasing with increasing alachlor concn. Combining 150 ppm. NA with the alachlor treatments reduced the degree of distortion. Leaves emerging subsequent to the primary leaves were normal. More complete emergence and unrolling of the primary leaf were observed when terminal segments (3.5 cm long, including the coleoptile and part of the first internode) from plants grown in the presence of 150 ppm. NA were vacuum infiltrated with 15-50 ppm. of alachlor than in the controls. It is concluded that the protective action of NA is of a physiological nature and not one of physical deactivation of the herbicide. From summary
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Plant and Soil Science, University Tennessee, Knoxville, 37901, USA |
| Subjects: | Plant Protection |
| Divisions: | Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 07 Sep 2012 10:23 |
| Last Modified: | 07 Sep 2012 10:25 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/7768 |
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