Paulownia Shang Tong
Shang Tong is the newest and improved variety of paulownia bred in China, which has the following advantages over other types of paulownia:
fast growth, strong resistance to diseases and insect pests, great resistance to drought and cold, large amount of wood obtained, good quality, conservation of land area due to a narrow crown, exceptional adaptability, strong ability to recover, etc.
Strong resistance to diseases and insect pests.
Resistance to disease and insect pests is an important feature for fast-growing and highly productive forests in paulownia production. The results of field studies on natural infection show that the infection index of Shan Tong, grown for seven years, is significantly lower than other types of paulownia.
High resistance to drought and cold.
Tolerance to natural conditions is another important indicator in the selection of paulownia varieties. Types of paulownia with great resistance to drought and frost resistance, have a stronger ability to withstand climate change, showing higher growth, better survival and productivity. According to experimental observation, Shan Tong showed that it can withstand both low temperatures up to -28 ℃ and high temperatures up to 42 ℃.
A large amount of wood.
The barrel at Shan Tong is straight, tall, slender and of good quality. Depending on cultivation conditions and methods, the height of the paulownia trunk can reach 6–9 meters, and the trunk diameter can reach 4–10 cm in the first year after a technical cut. Shan Tong seven years old, can reach 0.35-0.6 m3.
Superior wood quality.
The superior quality of paulownia wood plays a crucial role in terms of utilization and economic benefits. Experimental results show that the mechanical and physical properties of Shan Tong wood are better than those of its predecessors, which has reached and exceeded the international standard for wood quality. In a short time, you can get a larger quantity of quality wood, which is a favorable indicator for industrial purposes.
Space saving during landing.
Depending on the type of paulownia, its development characteristics and crown shape are different. Crowns of different types of paulownia are divided into three categories: narrow, medium and wide crown. The width of the narrow crown is 40% less than that of the wide type. Shan Tong is a narrow and medium type of crown, which will save more than 40% of the land, which will allow us to use the landing frames 4x4m and 4x3m.
Adaptation to climatic conditions. Years of practice have shown that Shan Tong can grow in the northern and southern parts of China, as well as in similar areas of foreign countries. In recent years, the United States, Germany, Bulgaria, Iran, Nepal, Vietnam, Burma, Laos, Thailand, Indonesia, Uganda and other countries have successfully introduced this beautiful variety.
In addition, this magnificent early honey plant attracts not only bees, but also bumblebees and other pollinating insects with its flowering.
Shan Tong can grow in different climatic and soil conditions, winning on its wide adaptation, which will save a huge amount of manpower and material resources for afforestation, reduce the total cost of afforestation, increase profitability.
The paulownia species of Shan Tong was obtained by artificially crossing P. tomentosa Steud and P. Fortunei Hemsl based on selective improvements in seed sources.