D.F. Walker1, D. MacLoon2, A.O.M. Smith1 and P.D. Sandeson2
(Partner: New Brunswick Soil and Crop Improvement Association)
Abstract: In 1999 a hybrid canola seed harvest management study was undertaken to determine the potential use of a desiccant as a harvest aid compared to the traditional method of swathing in New Brunswick. An argentine variety of canola was subjected to desiccation and swathing methods then harvested at three different moisture levels (10%, 12.5%, 15%). Treatments were evaluated by measuring yield, vigor, percent germination and percent harvest moisture. The desiccated plots had a significant lower % vigor ranging from 82% to 84% than the swathed plots which ranged from 89% to 94% however it was still in the acceptable range of 20 units of the % germination. Similarly, the % germination ranging from 89% to 94% for the desiccated plots was significantly lower than the swathed plots which ranged from 94% to 96% but still in an acceptable range. Desiccated canola exhibited a significantly faster drying down time than the canola laying in a swath indicating harvest could commence earlier in the fall.
1Livestock and Livestock Feed Branch, NBDARD, Fredericton, NB E3B 5H1
2New Brunswick Soil and Crop Improvement Association, 16 Gilks Road, Maugerville, NB