The effect of herbicides, cultivars and fungicides on pre- and post emergence damping-off and seedling blight of sorghum (Sorghum bicolor (L) Moench.)

McLaren, N.W. (1983) The effect of herbicides, cultivars and fungicides on pre- and post emergence damping-off and seedling blight of sorghum (Sorghum bicolor (L) Moench.). Crop Production, 12. pp. 101-103.

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Abstract

Effects of (a) atrazine, (b) propachlor and (c) propachlor + propazine applied pre-em. and various herbicide, cv. and fungicide combinations on pre-em. and post-em. damping-off and seedling blight in 3 sorghum cv. were investigated in 1982-3 at 2 sites. Good rains for 21 days after sowing enhanced leaching of herbicides into seed and seedling root zones. Germination was reduced by (b) at all rates, (c) at single and double rates and (a) at double recommended rates. All herbicides increased seedling blight severity; (a) and (b) increased pre-em. damping-off and (c) increased post-em. damping-off and reduced secondary root development, thus reducing compensation for the rotting of primary roots. Cv. resistance reduced and herbicides increased disease severity in the combined treatments. Fungicides had little effect and no interactions were observed

Item Type: Article
Author Affiliation: Research Institute for Grain Crops, Potchefstroom 2520, Tvl., South Africa
Subjects: Plant Protection > Pests
Crop Improvement > Seed Technology
Divisions: Sorghum
Depositing User: Mr B Krishnamurthy
Date Deposited: 21 Mar 2012 14:31
Last Modified: 21 Mar 2012 14:31
URI: http://eprints.icrisat.ac.in/id/eprint/4054

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