Author:
Norton J. A.,Walter J. P.,Storey J. B.
Abstract
Trifluralina,a,a-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) applied at 1.12 kg/ha inhibited lateral root development on field-grown pecan(Carya illinoensis(Wang.) K. Koch) seedlings. In a greenhouse study, inhibition of lateral roots, club-shaped radicles, and restricted penetration of tap roots resulted when pecans were planted in soil treated with 1.0 ppm trifluralin. When pecans were planted above soil treated with trifluralin, normal root development occurred only in the soil which had not been treated. Lateral roots were inhibited in the trifluralin-treated soil. Pecan nuts from trifluralin plots were smaller than those collected from controls, but other factors of quality were statistically equal or superior to nuts harvested in plots which had been treated with 2-chloro-4,6-bis-(ethylamino)-s-triazine (simazine) and 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron). The smaller nut size was attributed to lateral root inhibition by trifluralin early during nut development.
Publisher
Cambridge University Press (CUP)
Subject
Plant Science,Agronomy and Crop Science
Reference11 articles.
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2. Norton, J. A. 1967. The effect of preemergence herbicides on Western pecan seedlings and control of annual weeds. M. S. Thesis, Oklahoma State University.
3. Trifluralin Effects on Cotton Seedlings
4. Inhibition of cotton and soybean roots from incorporated trifluralin and persistence in soil;Oliver;Weed Sci.,1968
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