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Wheat in the fast lane

Canada’s canola industry reached a milestone in the fall of 2005.

From 1990 until 2004, canola yields across the Prairies were stuck in a range of 23 to 27 bushels per acre.

Some producers were recording yields much higher than 25 bu. per acre, but the average yield in Canada was stagnant.

Finally, in 2005, the average yield topped 30 bu. per acre. The actual number was 32.7 bu., using Canola Council of Canada data.

Yields in the 30s soon became the new normal as farmers averaged 31 to 36 bu. per acre for the next seven or eight years.

In 2013, the canola sector reached another milestone.

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Designing a Robotic Berry Picker

Video: Designing a Robotic Berry Picker


Since blackberries must be harvested by hand, the process is time-consuming and labor-intensive. To support a growing blackberry industry in Arkansas, food science associate professor Renee Threlfall is collaborating with mechanical engineering assistant professor Anthony Gunderman to develop a mechanical harvesting system. Most recently, the team designed a device to measure the force needed to pick a blackberry without damaging it. The data from this device will help inform the next stage of development and move the team closer to the goal of a fully autonomous robotic berry picker. The device was developed by Gunderman, with Yue Chen, a former U of A professor now at Georgia Tech, and Jeremy Collins, then a U of A undergraduate engineering student. To determine the force needed to pick blackberries without damage, the engineers worked with Threlfall and Andrea Myers, then a graduate student.