What Is Sexualization?

Number of generations of insects (especially those with diapause characteristics) in a year. In addition to climatic conditions, it is also related to the heredity of insects. Additive property is the abbreviation of chemical property in chemistry.

Sexuality

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Insects classified by generation number

The number of generations of insects with a short life history in one year. For example, two different rice borers in the Yangtze River Basin of China are named Erhuan and Sanhuan because of different generations each year. The same kind of insects, such as the silkworm, can become different varieties due to different chemical properties: polymorphic and simplistic.

Insects are classified by diapause

In addition to climatic conditions, it is also related to the heredity of insects. The difference between the time required to complete the development of the generation and the type of diapause is hereditary performance. Insect diapause can be divided into obligate diapause,

The number of generations that insects repeat within a year depends on the genetic type of the genus, species, and subspecies. The occurrence of sexuality changes according to external factors such as the environment. As a silkworm that breeds insects, the chemical properties vary depending on the species, and are called one, two, three, and four traits according to the number of traits. The polymorphic silkworm includes all European species, a part of Japanese species and Chinese species, and the polymorphic silkworm is Chinese species and Japanese species. The polymorphism is distributed from southern China to southern countries.