Dwarf star cluster

Dwarf blueberry is also called wild blueberry and wild dwarf blueberry. Growing on the east coast of the Atlantic Ocean, with high latitude and low temperature, there are only a handful of areas. Blueberry is a rare perennial woody fruit tree, which is listed as one of the five health foods for human beings by FAO, and it can be called "the king of fruits in the world" and "golden fruit".

Half-high beam

Semi-high bush blueberry is a hybrid of northern high bush blueberry and wild blueberry in the United States and other places. This variety combines the characteristics of short plant, strong cold resistance and excellent fruit quality of high-bush blueberry. Generally, the height of the tree is 50~ 100cm, and the fruit is larger than that of the low-bush blueberry, but smaller than that of the high-bush blueberry, so it has strong cold resistance and can generally resist the low temperature of -35℃.

High plexus

High-cluster blueberry mainly comes from the breeding and hybridization of wild cowberry in North America. Not drought-tolerant, suitable for growing in wet soil, forming communities in swamps, streams, wet sandy land and places where groundwater leaks in the foothills.

Blueberries with rabbit eyes

Rabbit-eyed blueberry is tall, long-lived and strong. Leaves are elliptic to ovate in width. The flowers are light pink to bright pink, which is a cultivated variety selected from wild cowberry. Before the fruit ripens, the color is as red as rabbit's eyes, so it is named rabbit's eye blueberry. The fruit of wild species is black or dark black, weighing about 0.5g, tasteless and of poor quality. The weight of cultivated fruit is above 1g, which is juicy, fragrant and delicious, and some of them are even better than high-bush blue blueberries.

Extended data:

morphological character

1. Fruit

Blueberry is a small berry with a beautiful blue fruit. The blue fruit is wrapped by 1 layer of white fruit powder, with fine pulp and tiny seeds. The average weight of blueberry fruit is 0.5-2.5g, the maximum weight is 5g, the edible rate is 100%, it is sweet and sour, and the aroma is pleasant, so it is a good fresh food.

2. flowers

The flowers of blueberries are racemes. Inflorescences mostly lateral, sometimes terminal. Flowers solitary or paired in leaf axils. Blueberry buds usually grow at the top of branches. In spring, flower buds germinate for 3-4 weeks before reaching full bloom. When the flower bud germinates, the leaf bud begins to grow, and it does not germinate to a suitable length until the full flowering period.

Step 3: suitcase

There are many shrubs, and the height of trees varies greatly. The height of rabbit eye blueberry can reach 10m, and it is often controlled at about 3m in cultivation. The height of high-clumped blueberry trees is generally1~ 3m; The height of the semi-high shrub blueberry tree is 50-100 ㎝; Shrub blueberry tree 30-50 ".

Step 4 leave

Leaves alternate, high-bush, semi-high-bush and short-bush blueberries shed their leaves before winter, and the rabbit eyes are evergreen, and the leaves can be kept on the trees for 2-3 years. The size of leaves ranges from 0.7-3.5 cm for short blueberries to 8 cm for tall blueberries. The most common leaf shape is oval. Most kinds of leaves have fluff on the back, and some kinds of flowers and fruits also have fluff, but there is almost no fluff on the leaves of dwarf blueberries.

take root

The root system has no root hair, and its absorption capacity is small. The roots of blueberry are thin and fibrous, and the diameter of the fine roots before branching is 50-75 μ m. Almost all the fine roots of blueberry are parasitic by endophytic mycorrhizal fungi, thus overcoming the difficulty of water and nutrient absorption caused by blueberry roots without root hair. Studies have proved that the parasitism of mycorrhizal fungi is beneficial to the growth of blueberries.

References:

Baidu encyclopedia-blueberry