Definition
noun
The amount of plant crop (such as cereal, grain or legume) harvested per unit area for a given time.
Supplement
In agriculture, the crop yield is a measure of the grains or dry matter quantity in a particular area. It is usually expressed in kilograms per hectare (or metric ton per hectare).
Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and development. Certain chemicals though can halt growth, e.g. herbicides in plants, or affect normal physiological activities, e.g. alcohol. For more info, read this tutorial on the effects of chemicals on plants and animals...
Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural selection have led to studies that actively manipulate the phenotype of offspring by selective breeding in animals and plants. ..
This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to include are cases of the bacterium PSA causing disease on kiwifruits, myrtle rust, and biological control...
