The cereal known as 'corn' in the USA and Canada, and as maize in all other countries, and in all other languages. Maize is the third most important crop in the world. It is cross-pollinating and it exhibits severe inbreeding depression which permits the production of hybrid varieties. Unlike wheat and rice, commercially grown maize is not normally consumed directly, and it is sent to factories for processing into many industrial products. It is also used as fodder, both as feed grains and silage. In subsistence farming, it is consumed directly by people.
Maize is a major staple (c.f., wheat and rice) that permitted the growth of cities in the New World. It also contributed to huge population increases in the Old World (c.f., beans, potatoes).
There is a detailed account in Return to Resistance. Zinc
Zinc is a trace element nutrient of plants. The deficiency symptoms show mainly as an inter-veinal chlorosis in the leaves which later become purple and necrotic. Zingerberaceae
The botanical family that includes ginger, turmeric, and cardamom. Zingiber officinale
Ginger, which probably originated in India and is of great antiquity in the Far East. It was also known to the Ancient Romans. The wild progenitors are extinct. The crop is propagated vegetatively and few clones are known. Flowering is rare, and this is a difficult crop to breed. Zizania aquatica
Wild rice. Although a member of the grass family (Gramineae), it is not related to true rice.
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