Canola seed size for planting?

[goalieguy847]

Just a couple pics

[wardtoma]

The move towards seed sizing was first researched by AAFC in Saskatoon by Dr. Elliot. His published work indicated that "Under field conditions without insecticides, seedlings from small seeds of each cultivar had the highest flea beetle damage, poorest establishment, and lowest shoot weight, biomass and yield. Compared with small seeds, large seeds improved seedling establishment, shoot weight, biomass and yield by 1.1, 1.6–2.0, 3.0–3.5 and 1.5 times, respectively. Results indicated that seedlings from large seeds are more vigorous and tolerant to flea beetle damage than seedlings from medium or small seeds. Seedling vigour and tolerance was due to a higher initial shoot biomass and higher growth rate when flea beetle damage was severe. When damage exceeded 50%, large heavy seeds had the best stand establishment, best shoot growth and highest yield in each cultivar."

https://cdnsciencepub.com/doi/abs/10.4141/CJPS07059

Ward Toma
GM, Alberta Canola

[shtferbrains]

I think Stu Brant did a similar trial ar Scott Reasearch Station using an open pollinated variety.

They were replicated plots. You didn't need signs to know where they seeded the big black seed.

[Sodbuster]

Had all my canola delivered last week, checked seed lots today and all lots are between 5.2-5.4 grams. Hats off to my dealer for finding the biggest seed lots to deliver to me.