There may be several reasons why oranges do not bloom and do not bear fruit, which is usually related to the physiological state of the plant, environmental conditions, and cultivation management.
Here are some common reasons:
The climatic conditions are not suitable during the flowering period
If oranges are subjected to extreme weather conditions during flowering, such as frost, continuous rain or high temperatures and droughts, it can affect the pollen ripening and pollination process, resulting in flowers not bearing fruit.
Insufficient pollination
Flowers can also fail to produce fruit if there is a lack of enough insects or other vectors for pollination, such as in closed orchards, due to insufficient wind or other causes of reduced insect activity.
Plant malnutrition
If the orange tree does not have a sufficient supply of nutrients during the growth process, such as lack of fertilizer, insufficient water or poor soil quality, it will affect the flower's development and fruiting ability.
Pest and disease impacts
Pests and diseases, such as those of agricultural pests, can damage the structure of the flower and affect its normal fruiting.
Tree management issues
Management problems such as improper pruning, heavy loads (too much fruit in the previous year and too much energy consumption of the tree) can also lead to flowering and not bearing fruit.
Breed characteristics
Some orange varieties are incompatible and require cross-pollination to bear fruit, which can also lead to flowering and fruiting if a cross-pollination source is lacking.
In order to increase the fruit setting rate of oranges, the following measures can be taken:
- Choose the right varieties and consider introducing pollinated trees to guarantee effective cross-pollination.
- Strengthen cultivation management to ensure that the tree is nutritionally balanced, and the load is appropriately controlled to avoid overload production every year.
- Pay attention to the ventilation and light transmission of the orchard, create an environment conducive to insect activity, and carry out artificial pollination if necessary.
- Control pests and diseases, keep orchards clean, and reduce the occurrence of pests and diseases.
- Regulate the climatic conditions of the orchard, especially during flowering and young fruiting, to avoid the effects of extreme weather.
Once you understand the situation, you can take more targeted steps to solve the problem.