The quality of blueberries in North America is world-famous. The semi-high-bush blueberries are suitable for planting in temperate cold regions, the northern high-bush blueberries and some semi-high-bush blueberries are suitable for planting in warm temperate regions, and the rabbit-eye blueberries and the southern high-bush blueberries are suitable for planting in subtropical regions. ?
China is mainly located in Liaoning, Heilongjiang, Jilin and other regions, and there are many wild species resources of blueberry plants such as Vaccinium uliginosum (commonly known as Vaccinium uliginosum and Vaccinium uliginosum) and Vaccinium uliginosum naturally growing in Changbai Mountain and Daxing 'an Mountains in the northeast.
Extended data:
Blueberries can grow many times in a growing season, and secondary growth is more common. In southern China, blueberries have two growth peaks a year, the first one is from May to June, and the second one is from mid-July to mid-August.
In the third year after planting, the growth of seedlings is obviously accelerated, and new branches germinate and grow vigorously, and the annual growth can reach more than 1 m. In that year, flower buds were mostly formed at the top of the branches, which differentiated downward from the top. The number of flower buds that could be differentiated per branch was related to the variety and branch thickness. Generally, there were 4-7 high-bush blueberries and 3-6 rabbit-eye blueberries, and the flower buds were mainly solitary in nodes.
The flower bud differentiation period of all kinds of blueberry is different. The dwarf blueberry and the tall blueberry begin to differentiate from July to August, and the rabbit eye blueberry begins from mid-June. By the end of September to the beginning of 10, the flower bud differentiation of blueberry had been completed.