What are the reasons why pear trees only bloom but do not bear fruit

Pear is a major economic fruit tree cultivated in China, with abundant resources and many varieties in our country. During the process of pear tree cultivation, many fruit growers have reported that their pear trees only bloom but do not bear fruit, seriously affecting the yield and quality of pear trees and causing certain economic losses. So what exactly is going on when pear trees only bloom but do not bear fruit? How should it be prevented? Let's find out together.

I. Reasons for blooming without bearing fruit

1. Excessive application of nitrogen fertilizer

Some fruit growers, in order to promote growth during planting, generally apply too much nitrogen fertilizer, which causes excessive vegetative growth, resulting in only branches growing without fruit, or few flower clusters, or serious flower and fruit drop, and a low fruit-setting rate.

2. Abnormal climate

In spring, the temperature changes greatly. If adverse weather such as a late spring cold snap occurs during the flowering period of pear trees, it will cause serious flower drop, resulting in fewer fruits.

3. Poor drainage

When pear trees are growing, in years with more rain during the rainy season, orchards with poor drainage will suffer from waterlogging, thereby hindering tree growth, reducing the fruit load, and in severe cases causing root rot and death.

4. Poor pollination

The flowering and pollination period of pear trees is extremely critical, especially because pear trees themselves are cross-pollinated fruit trees, and self-pollination has a relatively low fruit-setting rate.

II. Preventive measures

1. Reasonable fertilization

Nitrogen fertilizer should be applied reasonably, with less nitrogen fertilizer and more phosphorus and potassium fertilizer, to improve the flowering and fruit-setting rate of pear trees, which is beneficial for improving the yield and quality of pear trees later on.

2. Timely drainage

If there is excessive rain during the flowering period of pear trees, too much accumulated water will affect plant growth and reduce the fruit-setting rate, so drainage and waterlogging prevention measures should be well carried out, with less water during drought and no water accumulation during the rainy season.

3. Pruning and branch tying

If pear trees grow too vigorously, other main branches and some scaffold branches can be cut off, and overly dense branches can be pulled toward the edge of the canopy with ropes. This can not only control excessive vegetative growth of the plant, but also increase the light-receiving area, which is beneficial for improving the fruiting rate.

4. Increase planting of pollinator varieties

Pear trees are cross-pollinated fruit trees, and pollination with the same variety has an extremely low fruit-setting rate, or even no fruit at all. Therefore, when planting, pollinator varieties should be reasonably added to improve pollination quality and increase the fruiting rate. Generally, the ratio of the main variety to the pollinator variety should be 3:1.

5. Artificial supplementary pollination

Artificial supplementary pollination can also be chosen. Select varieties with a large amount of pollen and strong compatibility as pollinator varieties, collect mature anthers, and dry them under diffused light so that the anthers crack, then collect the pollen and carry out artificial pollination. Artificial pollination can be divided into point pollination and liquid pollination. Point pollination uses a brush to dip pollen and gently touch it onto the stigma of the female flower. Liquid pollination refers to mixing pollen with water, boron fertilizer, and granulated sugar in a certain proportion to make a liquid, then spraying it onto the flowers with a sprayer to complete pollination.

The above is an introduction to the reasons why pear trees only bloom but do not bear fruit. We hope it can help you. If you want to learn more related knowledge, please follow us.