Because thorns are the product of branch degeneration or evolution, the flowers of these plants are usually very sweet, in order to attract bees and butterflies to spread pollen. However, if the flowers are sweet, they will also attract big animals.
In order to prevent large animals from eating flowers, some branches of these plants have evolved into thorns, so that larger animals will be injured when they touch thorns, thus achieving the purpose of these plants.
It is normal for orange trees to have thorns. Almost all varieties have thorns, but some are few. This plant has strong adaptability, can grow in many soils, and has certain shade tolerance, but it needs to provide sufficient light if it wants to bear more fruits.
Extended data:
Cultivation techniques:
Summer is hot and humid, which is the season with the most citrus pests in a year.
During this period, if pest control is ineffective, it will seriously affect the cultivation of young citrus branches, affect the development of young fruit trees, and even lead to a large number of fruits. Therefore, it is necessary to strengthen pest control in summer. The occurrence of major pests and diseases in citrus in summer and its control methods are introduced as follows
Demand for deep soil (60 products) and fertility; The ph value of soil is 5.5-7.0. The slope of the orchard is below 25 degrees. When planning the garden, necessary roads, irrigation, drainage, water storage and ancillary building facilities shall be provided. In the specific planning, try to concentrate on blocks and build gardens in places with good traffic and water resources.