GREEN SEED COAT COLOUR RETENTION IN LENTIL - University ...

in both years to produce two different local environments. In 2005 Goodale was
planted later while SPG was planted later in 2006 (Table 5.1).
Table 5.1 Seeding date, swathing and desiccation treatment date, and harvest date,
at SPG and Goodale during 2005 and 2006 for the preharvest treatment study.
Site Year Seeding date Treatment date Harvest date
SPG 2005 May-12 Aug-29 Sep-29
2006 May-16 Aug-15 Sep-15
Goodale 2005 May-29 Aug-31 Sep-29
2006 May-06 Aug-03 Aug-16
Chemical weed control was employed (Table 5.2). Imazethapyr and ethalfluralin
were both applied the autumn before the lentils were planted. Glyphosate
(Monsanto, Winnipeg, Manitoba) was used as a preseed burnoff and metribuzin (4-
amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one) and clethodim
(Bayer, Calgary, Alberta) ((±)-2-[(E)-1-[(E)-3-chloroallyloxyimino]propyl]-5-[2-
(ethylthio)propyl]-3-hydroxycyclohex-2-enone) were applied in crop. Diquat
(Syngenta, Guelph, Ontario) was applied on selected plots as the desiccant with a
CO2 powered hand wand sprayer. The diquat rate was 1.75 l ha -1 with 172 ml ha -1
of the surfactant Agsurf (IPCO, Saskatoon, Saskatchewan) at a water volume of
170 l ha -1 .
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