Term
| What is the scientific name of canola? What family does it belong to? |
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Definition
Brassica napus, rapa
Part of the Brassicacea family
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Term
| What is the breakdown of the name canola? |
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Definition
Canada+oil+low acid (low erucic acid content)
Rapeseed was grown in the prairies during WW2 for its use as a lubricant for steam-powered ships. Found to breed out eurcic acid and low glucosinolates (caused canola market to grow) |
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Term
| Where did Canola originate? |
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Definition
Brassica rapa - Himalayas
Brassica napus - Mediterranean |
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Term
| Brassica napus is the result of a cross between what 2 other crucifer species? |
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Definition
| Brassica oleraceae and Brassica rapa |
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Term
| Why was Rapeseed oil not considered suitable for human consumption? |
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Definition
High eurcic acid content. Thought that this fatty acid promoted heart disease
High in glucosinolates (gives mustard it's sharp taste, but also leads to thyroid disfunction) |
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Term
| What is meany by "single low" and "double low"? |
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Definition
Single low = plant varieties with low erucic acid
Double low = plant varieties with low erucic acid and low glucosinolates |
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Term
| Why is B. juncea canola of interest to Western producers? |
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Definition
Meets canola standard for erucic acid and glucosinolate content
Superior drought and heat tolerance |
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Term
| What are the 3 top producing countries of canola? |
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Definition
Europe
Canada (major exporter)
China |
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Term
| Which province in Canada produces the most Canola? |
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Definition
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Term
| What are the 3 largest desinations for Canada's canola? |
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Definition
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Term
| What are the different soil zones in Western Canada? |
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Definition
Black
- most precipitation
- high organic matter
Dark Brown
- lower rainfall
Brown
- nearly desert
Dark grey
- used for canola and spring wheat (these crops can germinate at low temperatures and withstand frosts) |
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Term
| Why is canola adapted over a large range of lattitudes? |
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Definition
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Term
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Definition
Results from chlorophyll in the seed not clearing or disappearing before harvest
Can also be the result of frost before maturity or harvesting too early |
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Term
| What kind of canola hybrids are preferred? |
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Definition
Low FFA and high yields
(some varieties can develop free fatty acids -FFA- under hot dry conditions) |
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Term
| What kind of canola is grown in Canada? |
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Definition
Spring Canola
Ability to germinate on an ice block |
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Term
| Why is the seedbed packed before planting canola? |
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Definition
Want a firm seedbed for good soil-to-seed contact
Allows for control of seed depth |
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Term
| What are the two types of canola harvesting methods? |
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Definition
1. Swathing
- swath canola and allow it to dry in the windrow
- combine with belt pick-up header
2. Direct combining
- seed has potential to run through header |
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Term
| Should corn be planted after canola? |
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Definition
NO!
Planting corn after canola results in a corn crop that is stunted and low yielding
Canola does not support mycorrhizae, which corn needed for P uptake
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Term
| Why did Canola not become a major crop in Ontario? |
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Definition
Cool season crop (Ontario is too warm)
Soybeans took off in the targetted growing areas |
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