There are various reasons why ginkgo trees do not bear fruit, and the following is a detailed analysis of these reasons: Firstly, the biological characteristics of ginkgo trees themselves
1. Dioecious plants: Ginkgo trees are dioecious plants, where the female and male trees grow separately. Only female trees can bear fruit, while male trees only produce pollen. Due to the relatively small number of female plants under natural conditions, the observed number of ginkgo trees is also relatively low.
2. Age factor: Ginkgo trees generally need to grow to a certain age before they can begin to bear fruit. Naturally growing ginkgo trees usually take 15-20 years, or even longer, to begin bearing fruit. Although the fruiting time of grafted ginkgo trees has been shortened, it still takes several years to reach the fruiting stage. 2、 The influence of growth environment
1. Light: Ginkgo trees require sufficient sunlight for photosynthesis to produce enough energy to support their growth and fruiting. If there is insufficient light, the growth of ginkgo trees will be inhibited, thereby affecting the results.
2. Soil: Ginkgo trees prefer to grow in fertile and well drained soil. If the soil is poor, compacted, or has poor permeability, the growth and development of ginkgo trees will be restricted, which in turn will affect the results.
3. Water: Ginkgo trees require an appropriate amount of water during their growth period. Excessive or insufficient moisture can lead to poor growth of ginkgo trees, thereby affecting the results.
4. Climate: Appropriate temperature and humidity conditions are crucial for the growth and fruiting of ginkgo trees. If the climate conditions are not suitable, the growth and development of ginkgo trees will be inhibited. 3、 Improper management and maintenance
1. Improper pruning: Pruning is an important part of Ginkgo tree management. If pruning is not done properly, it can damage the crown structure of ginkgo trees, affecting their growth and fruiting.
2. Improper management of fertilizers and water: Ginkgo trees require adequate nutrition to support their growth and fruiting. If fertilizer and water management is improper, such as overusing nitrogen fertilizers, neglecting the application of phosphorus, potassium fertilizers, and trace element fertilizers, it can lead to poor growth of ginkgo trees, thereby affecting the results.
3. Poor pest and disease control: Ginkgo trees are susceptible to invasion by pests and diseases. If the prevention and control of pests and diseases are not effective, it can lead to the inhibition of ginkgo tree growth, or even death, thereby affecting the results. 4、 Other reasons
1. Grafting scion problem: If the scions are harvested from Ginkgo trees that have not yet borne fruit or have just begun to bear fruit, the physiological development stage of such scions is relatively "young", and the crown formation is faster after grafting, but they may not bloom or bear fruit for many years.
2. Unreasonable planting combination: If there are no suitable pollination trees (female or male) around the ginkgo tree, or if all the planted ginkgo trees are small and have not reached the fruiting age, it will lead to the ginkgo tree not bearing fruit.
The reasons why ginkgo trees do not bear fruit are multifaceted. In order to ensure the normal fruiting of ginkgo trees, it is necessary to comprehensively consider the above factors and take corresponding management measures for improvement and optimization.