Tolerance of new cereal varieties to current herbicides.

Trial 88EB26 While this site had a low population of weeds no yield increases were apparent. Few variety differeces were apparent at this site, though Hoegrass + Glean reduced yield of Crabook significantly. Trial 88EC27 Few crop effects were experienced at this site. The major effect was due to variable fertility in replicates 3 and 4 and this resulted in the somewhat uyp and down nature for the Glean, Logran and hoegrass results. Trial 88SC32 This site had a major problem with soil acidity and only triticale and oats grew satisfactorily. Barley was strongly influenced by the acidity and many herbicide results are more variable than could be expected. Trial 88N72 Weeds: low burden annual ryegrass, though high in some areas

Metribuzin tolerance of Blade wheat

Trial 88C29 This site was seeded with the culti-trash seeder which sowed the crop greater than 10 cm deep. Due to the inversion of metribuzin treated soil onto the seed, the deep seeding and short coleoptile of Blade, all IBS treatments were reduced in yield with the exception of Lexone + Logran. Trial 88WH69 Blade showed good tolerance to metribuzin at this site and it is was only at the 400 g of the Lexone/ha rate the yield reductions were obtained with the IAS and Z12-13 treatments. Trial 88N74 Blade wheat tolerace to metribuzin was good both IBS and IAS, but decreased with increasing rate of Lexone at the Z12-13 timing

Pea variety tolerances to herbicides

88ME118. This site was variably infested with a population of wild oats and self-sown cereals

The tolerance of cereals to herbicides.

Herbicides affect not only the weeds present in a crop, but also the crop itself. In the absence of weeds, both positive and negative responses to herbicides have been reported in the literature. The negative responses are the most important, especially if yield is decreased below the economic threshold for herbicide use. Factors which are important in determining the level of crop response to a herbicide include the crop species and variety, the timing of the herbicide, the rate of herbicide and the environmental conditions under which the crop is growing

Tolerance of recommended cereal varieties of new herbcides

88EC28, 88SC31, 88N73

Tolerance of cereal crops to herbicides

Herbicides have come to play an important role in the control of weeds in Western Australian cereal crops, with some estimates showing that sufficient herbicide was applied to treat every hectare of cereal grown in 1984. While the use of herbicides reduces competition from weeds, they may have a hidden cost. As chemicals which affect plants, herbicides may also affect plants, herbicides may also affect and damage the crop which they are protecting. The crop may possibly fail, and some or all of the economic benefits obtained from the chemical control of weeds may not be realised

Herbicide tolerance of recommended cereal varieties

Herbicide tolerance of recommended cereal varieties Barley response to Glean, 86 GE 52, 86 GE 56, 86N0107, 86N0112, 86KA74, 86KA78. Tolerance of lupins to selected broadleaf herbicides, 86 GE 59, 86 GE 49. Herbicide tolerance of recommended cereal varieties, 86ME98. Herbicide tolerance of recommended cereal varieties effect of non-phenoxy herbicides on phenoxy sensitive wheat varieties, 86A12, 86A13. Herbicide tolerance of recommended cereal varieties barley response to metribuzin, 86LG37, 86LG59. Tolerance of recommended pea varieties to herbicides, 86NO111. Stirling barley tolerance to Glean and Ally, 8 6N0119. Effect of plant-back time on response to Till-master, 86WH48. Tolerance of lupins to selected broad-leaf herbicides, 86WH49

Tolerance of cereal varieties to herbicides

Tolerance of current cereal varieties to new herbicides, 89EC21, 89N27, 89SC15. Tolerance of new cereal varieties to current herbicides, 89EB19, 89EC20, 89N28, 89SC16. Tolerance of wheat varieties to Metribuzin and Pendimethalin, 89EC22, 89WH58. Tolerance of wheat to herbicide tank mixes for grass and broadleaf weed control in cereals, 89WH86. Grasp efficacy and tolerance, 89C22, 89GE93. Tolerance of field peas to herbicides, 89KA64, 89M56. Tolerance of pasture legume varieties to herbicides, 89KA76. Crop establishment using residual herbicides for weed control, 89NA66

Lupin variety tolerance to herbicides

Trial 88EC31 This site received a basal treatment of 1.5 L of simazine/ha prior to seeding. Due to a heavy stubble load lupin seed was dropped onto the surface and lightly incorporated. High rates of Simazine were better tolerated by Gungurru 75A/260 and CE2/435. The highest rate of Brodal reduced yields in all varieties except Gungurru. Trial 88EB27 This site was severely infested with aphids and bean mosaic virus such that the varieties Illyarrie and Danja had up to 60% plant death by anthesis. Other varieties were affected but to a lesser extent