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Morphological characteristics and distribution range of corn
Aug 31, 2018


Morphological characteristics:

A tall herb of the year. The stalks are erect, usually unbranched, 1-4 m high, with basal roots at each base. Leaf sheaths with transverse veins; leaf membranous membranous, ca. 2 mm long; leaf blade broadly sessately lanceolate, lanceolate lanceolate, sateately sately sateately sateately sessately sessately sessately sessate. The terminal male panicle is large, the main axis and the raceme axis and its stalk are finely pilose; the male spikelets are axillary, up to 1 cm long, and the stalks are long and short, 1-2 mm long and 2- 4 mm, puberulent; puberulently pubescent, membranous, ca. 10-septate, sessate. Female inflorescences are occluded by many broad sheaths; female spikelets axillary, arranged in 16–30 longitudinal rows on a thick, orderly axis, two locules of equal length, broad, veinless, sessile; lemma and lemma Transparent membranous, pistil with extremely long and thin linear style. The caryopsis is spherical or oblate, and when exposed, the glumes and bracts are exposed. The size varies with the growth conditions. It is generally 5-10 mm long, slightly wider than its length, and the embryo length is 1/2 of the caryopsis. 2/3. Chromosome 2n = 20, 40, 80 (Sarma et Sharma, 1986; Molina, 1986). Flowering fruit in autumn.


It is cultivated everywhere in China. It is widely cultivated in tropical and temperate regions of the world and is an important grain.


Distribution area:

Corn is native to Central and South America. It is now cultivated all over the world. Mainly distributed between 30 ° -50 ° latitude. The most cultivated areas are the United States, China, Brazil, Mexico, South Africa, India and Romania. China's main corn producing areas are the northeast, north and southwest mountains.


  • Contact Us
    Add:Songfang Village, Taizi Town, Zouping County, Shandong Province, China
    Tel:+86-543-4891929
    Mob:+8615266790909
    Fax:+86-543-4890929
    E-mail:
    Sales Dept.: sales@jucitrade.com
    Shipping Dept.: stone@sdjuci.com
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