The basic principles of plant classification The system of plant classification The significance of plant classification Plants, as an important part of the earth's biodiversity, have many types and different shapes. In order to better understand and study plants, scientists have scientifically classified them. How many plant classifications are there? This article will give you a detailed introduction to the plant classification system and its related contents. Basic principles of plant classification Plant classification is to divide plants into different groups based on their external form, internal structure, growth and development process, and genetic information. The basic principles of plant classification include: 1. Morphological principles: Based on the external form of plants, such as the characteristics of plants 'leaves, flowers, fruits, etc.; 2. Structural principles: Based on the internal structure of the plant, such as the plant's cell structure, organizational structure, etc.; 3. Developmental principles: based on the plant's growth and development process, such as the plant's reproductive methods, seed development, etc.; 4. Genetic principles: Based on the plant's genetic information, such as DNA sequence, gene expression, etc. The plant classification system is divided into the following four levels: 1. Kingdom: The highest level in the plant kingdom. There are currently five recognized realms, namely: animal kingdom, plant kingdom, fungus kingdom, prokaryote kingdom and protists kingdom.
2. Phylum: The second level in the plant kingdom. Plants are divided into different phylum based on their basic characteristics, such as Bryophyta, Fernophyta, Gymnosperma, Angiosperma, etc.
3. Class: The third level in the plant kingdom. Plants are divided into different classes based on the characteristics within the phylum, such as Gymnosperms, Angiosperms, etc.
4. Order: The fourth level in the plant kingdom. Plants are divided into different orders based on the characteristics within the class, such as Rosaceae, Chrysanthemum, etc.
5. Family: The fifth level in the plant kingdom. Plants are divided into different families based on the characteristics within the order, such as Rosaceae, Compositae, etc.
6. Genus: The sixth level in the plant kingdom. Plants are divided into different genera according to the characteristics within the family, such as Apple, Chrysanthemum, etc.
7. Species: The lowest level in the plant kingdom. Plants are divided into different species based on the characteristics within the genus, such as apples, chrysanthemums, etc. The significance of plant classification Plant classification helps us understand the diversity of the plant world and facilitates the protection and utilization of plant resources. The following are the significance of some plant classifications: 1. Plant classification helps understand the genetic relationship between plants and provides a basis for biological evolution research; 2. Plant classification helps the investigation, protection and utilization of plant resources; 3. Plant classification helps plant breeding and genetic improvement; 4. Plant classification helps protect and restore plant ecosystems.
There are five basic principles for plant classification, which are divided into seven levels. Through plant classification, we can better understand the diversity and level of the plant world. Plant classification is of great significance to the research, protection and utilization of plant resources. I hope this article can reveal the secrets of plant classification and enhance your understanding of the plant world.