1. Blackberry Hull
is native to North America and introduced from the United States. It is semi-erect, spineless, and its fruit is green when it first bears, and turns from red to purple-black when it matures.
2. Red raspberry Australian Red
was introduced from Australia. The new branches are yellow-green, the mature basal branches turn yellow-brown, the branches are densely covered with small thorns, and the small thorns on the tender branches are reddish brown.
3. Berry Poland
was introduced from Poland. The masses are commonly known as "yellow berries". The fruit is nearly conical, the initial fruit is light green, and the fruit turns pale yellow when it matures.
distribution area
China is rich in wild raspberry resources, with about 21 species, which are distributed all over the north and south. The economic cultivation and utilization of raspberries abroad was earlier. In the mid-19th century, a large number of raspberry varieties were cultivated in Russia. At present, the annual output of Russia, Yugoslavia, Poland, Germany, the United States, Canada, Britain and Hungary is over 1, tons.
Raspberry has been cultivated in China for about 7 years. It was introduced from the far east coastal areas by Russian overseas Chinese to Shangzhi County, Heilongjiang Province. In recent years, scientific research units in Jilin and Liaoning provinces have also introduced and tried planting from abroad, selected some excellent varieties and gradually applied them to production.