Canary seed , Alpiste, Phalaris canariensis

Canary seed grass is a native of a Mediterranean region. It is used mostly as a bird food, but  it can be used for  human consumption also. It might cause an esophageal cancer though, if you are not careful, unless you use spike less variety. Microscopic spikes of canary seeds annoy /kill esophageal cells, so their neighbors have to breed faster, and as a result the chance for cancerous mutation is bigger. Right now  canary seed is used as food by North Africa, Italy, parts of Spain and Mexico.
Only 12 countries are growing canary seed / alpiste commercially according to FAO.org, but  the number is more likely to be 10 as Morocco and Netherlands apparently are out of the picture of the canary seed business. Biggest producer both by volume and  per capita is Canada,  141 900 t  of canaryseed produced in 2009. That's about 4.13 kg of canary seed per Canadian. Worldwide,  196 150 tonnes were produced (2009), or 28.4 grams  per potential consumer.
World crop could  provide nutrition for  about 1 mln people.
 213 619 hectares were used for canary seed production in 2009 , a territory close to the size of Comoros islands.

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Best crop ever was in 2004 (378 042 tonnes), worst since 1961-- 47 408 tonnes (1966)
Best global yields were 1212.9 kg/ha in 1990, worst since 1961-- 664.6 kg/ha in 1977.

Record yield belongs to Czech republic , 3500 kg/ha, on some small experimental field. Aside of that, top yield was 1742.8 kg/ha in Turkey (2006)
Canaryseed costs around $1000 per ton,  world crop is about $ 190-210 million worth.

Production by country,              2007            2008            2009

Argentina	Canary seed	9050		10023		9763
Australia	Canary seed	4000	F	5000	F		M
Canada	Canary seed	162000		195600		141900
Czech Republic	Canary seed	700		700			M
Hungary	Canary seed	5972		12343		5389
Mexico	Canary seed	183		227			M
Morocco	Canary seed	0	F	0	F		M
Netherlands	Canary seed		M		M		M
Spain	Canary seed	70	F	70	F		M
Thailand	Canary seed	30000	F	30000	Fc	30000	Fc
Turkey	Canary seed	62		17		61
Uruguay	Canary seed	2800	F	3040	F		M
World + (Total)	Canary seed	214837	A	257020	A	196150	A