The Structure of a Corn Plant

Study Notes

Overview of Corn (Maize)

Native to North America, first cultivated in ancient Mexico.
Adaptable to various climates, leading to widespread cultivation across the continent.
Developed into numerous varieties for diverse uses, including food, medicine, and fuel.

Growth and Physical Characteristics

Reaches heights of up to ten feet with roughly twenty leaves.
Grows from a single, straight stalk supported by a shallow root system.

Plant Anatomy

Female Organ (Ear): Located on the stalk, typically near the middle; contains the cob with ovules.
Male Organ (Tassel): Found at the top of the plant after leaf growth; consists of branches releasing pollen.

Pollination Process

Corn silk, a hairlike structure from each ovule, grows approximately one inch daily and emerges from the husk.
Pollen from the tassel falls on silks, initiating fertilization where male pollen cells grow down the silk to fertilize female ovules.

Kernels and Reproductive Output

After fertilization, ovules develop into kernels, with each ear capable of growing 500 to 1,000 kernels.
Ear dimensions can reach three inches in diameter and eight inches in length.

Corn Plant Parts and Functions

Leaf: Captures sunlight for photosynthesis.
Stalk: Provides structural support to the plant.
Roots: Secure the plant in soil and absorb water/nutrients.
Tassel: Releases the necessary pollen for fertilization.
Ear: Site for the fertilization process and kernel production.
Silk: Facilitates the transfer of pollen to each developing kernel.
Prop Roots: Offer additional support to the tall structure, helping resist wind.

Description

Explore the fascinating structure and cultivation history of the corn plant, or maize, native to North America. Learn how its adaptability has allowed it to thrive in various climates and how humans have shaped its varieties over centuries. This quiz will test your knowledge on corn's significance in agriculture and culture.