Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
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Page 121
... Bioassay visual rating 0 Actual Bioassay GLC analysis 0.0625 0 0.06 0.125 0 0.13 0.3 0.25 0.28 0.21 1.4 0.5 0.45 0.51 3.4 1.0 1.0 1.10 4.9 2.0 1.91 1.99 The data show good agreement between the two methods of assay- ing atrazine within ...
... Bioassay visual rating 0 Actual Bioassay GLC analysis 0.0625 0 0.06 0.125 0 0.13 0.3 0.25 0.28 0.21 1.4 0.5 0.45 0.51 3.4 1.0 1.0 1.10 4.9 2.0 1.91 1.99 The data show good agreement between the two methods of assay- ing atrazine within ...
Page 122
... bioassay rating of 0-1 ( i.e. , induced slight chlorosis with no reduction of vigour ) was considered to have atrazine levels low enough to have no significant effect on sensitive crops following in rotation . Bioassay results indicated ...
... bioassay rating of 0-1 ( i.e. , induced slight chlorosis with no reduction of vigour ) was considered to have atrazine levels low enough to have no significant effect on sensitive crops following in rotation . Bioassay results indicated ...
Page 21
... bioassay . TABLE 2 : Effect of atrazine on dry shoot weight of bioassay species in the glasshouse ( data expressed as % of control ) Atrazine Turnips Oats H * M * H M ppmw 0 100 a 100 a 100 a 100 a 0.10 89 a 72 b 102 a 101 a 0.15 77 ab ...
... bioassay . TABLE 2 : Effect of atrazine on dry shoot weight of bioassay species in the glasshouse ( data expressed as % of control ) Atrazine Turnips Oats H * M * H M ppmw 0 100 a 100 a 100 a 100 a 0.10 89 a 72 b 102 a 101 a 0.15 77 ab ...
Contents
Chairmans summary | 1 |
Notillage establishment of lucerne G C Atkinson | 9 |
Insects affecting lucerne seed production | 19 |
Copyright | |
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Common terms and phrases
29th N.Z. Weed activity adults Agric Agricultural Research Centre alachlor aphid application areas assessed asulam atrazine Auckland autumn azinphos-methyl barley grass benomyl BGLA black beetle blue-green lucerne aphid brassicas Canterbury carbofuran chemical chlorpyrifos Christchurch crop cultivars cypermethrin damage diflubenzuron disease DSIR effect emergence ethofumesate fensulfothion field trials foliage fungicides germination gorse granules grass grub growth Hamilton harvest herbicides increased insect insecticides isazophos kg/ha larvae leaf legumes Lincoln linuron litres/ha lucerne lucerne yield maize method mite nematode North Island numbers oats P.O. Box Palmerston North paraquat pasture Pest Control Conf phorate picloram plants plots population post-emergence Proc pyri rates reduced replicates residual resistant Ruakura Ruakura Agricultural Research ryegrass samples season seed seedlings significant significantly soil sowing sown species spray sprayer spring stage summer Table tested treatments triclopyr untreated Weed and Pest weed control weeks weevil Wellington white clover white-fringed weevil Zealand