How to introduce corn in kindergarten

A brief introduction to corn. Compared with traditional rice, wheat and other food crops, corn has strong drought tolerance, cold tolerance, barrenness tolerance and excellent environmental adaptability. Corn has high nutritional value and is an excellent food crop.

As a high-yield food crop in China, corn is an important source of feed for animal husbandry, breeding, aquaculture, etc., and is also one of the indispensable raw materials for food, medical and health, light industry, chemical industry, etc. .

Morphological characteristics

Tall annual herb. The stalk is upright, usually unbranched, 1-4 meters high, with aerial pillar roots at each node at the base. The leaf sheath has transverse veins; the ligule is membranous, about 2 mm long; the blade is flat and wide, linear-lanceolate, the base is rounded and ear-shaped, hairless or pilose, the midrib is thick, and the edges are slightly rough. The terminal male panicle is large, and the main axis, raceme axis and axilla are all covered with fine pubescence.

Male spikelets are twin, 1 cm long, with one long and one short stalk, 1-2 mm and 2-4 mm respectively, covered with fine pubescence; both glomes are nearly equal in length and membranous. , with about 10 veins, ciliated; lemma and lemma are transparent and membranous, slightly shorter than glumes; anthers are orange-yellow; about 5 mm long.