Dan Hong Yang - China's best poplar species!

Dan Hongyang and Juba Yang are the next generation of fast-growing insect-resistant poplar varieties developed by the Chinese Academy of Forestry in the early 1990s with No. 50 Yang and No. 36 Yang, and after more than 10 years of repeated selection. Dan Hongyang and Juba Yang are the sisters of the same crossbreeding group. In 2003, they were identified by the state and granted new varieties of protection rights. After comparative experiments and afforestation observations in Henan, Jiangsu, and Hubei provinces, Danhongyang and Jubayang have excellent characteristics such as fast-growing, easy-to-live, pest-resistance, and dry-shape, and are suitable for use in Huanghuai, Jianghuai, and the Yangtze River basin. Regional promotion and planting is the preferred tree species for fast-growing and high-yielding forests and river protection forests in China, and it is expected to become a new generation of poplar replacement trees represented by 107, 108, 2025, and 895.
Red poplar, female, fast-growing. Planted in the red poplar in Jiaozuo, Henan Province, with sufficient water and good site conditions, the DBH grows 5.8 to 7 centimeters in height and grows at an annual height of 4.8 to 5 meters. Anti-powdery rust, brown spot, ulcer resistance, anti-Moonectus argentatus, tested in northern Jiangsu, the susceptibility rate of Danhong Yangsang Tianniu was zero, and that of the control 69 Yang was 91%; in northern Henan, the experiment was conducted The susceptibility rate of Yang was 69%, that of 36 Yang was 8.9%, and the susceptibility of Danyangyang was 4.5%. Dan Hongyang has a fast rooting rate and a high survival rate. After testing, it takes 10 to 15 days earlier than Zhonglin 46; the germination is early, and germination is about 15 days earlier than the general variety; the leaves are late, more than 20 days old than the normal varieties; the trunk is straight. , Straight and beautiful, with fine branches and small canopies.
Giant tyrants Yang, male, fast-growing, pest-resistant, dry-shaped similar to red poplar.

Danhongyang and Jubayang are the new generation of fast-growing insect-resistant Yangliang species cultivated by the Chinese Academy of Forestry, and have excellent characteristics such as fast growth, resistance to pests and diseases, easy survival, and dry shape. For 5 years, Danhongyang has a breast diameter of 30cm, a height of 23m, and a volume of 0.58 cubic meters. It is far ahead of many well-known modern breeds and is the preferred tree species for the establishment of fast-growing and high-yield forests in the new era.

I. Characteristics of Dan Hongyang

Dan Hongyang experimented at our base for three years. After field observation, Danhongyang has the following outstanding features:

(A) grow faster. The three-year DBH of the base test forest reached 19.7 cm, 3 cm larger than Zhonglin 46, 2.3 cm larger than 107, 3.5 cm larger than 2025, and the corresponding volume was 57.3%, 49.7%, and 70.8%, respectively.

The 6-year-old Danhongyang of Jiaozuo Danyangyang Base in Henan Province is 49.4% larger than that of 107 (Danhongyang has an average breast diameter of 29.6cm, the average single plant volume of 0.53m3, and 107 average breast diameter of 24.5cm. The average per plant volume is 0.3370 m3. Big 49.4%).

(b) The dry shape is straight and satisfactory. Dan Hongyang's parents are all straightforward, so Dan Hongyang's dry shape than 107, Zhong Lin 46 Yang, dry shape is better, almost close to Metasequoia.

(c) The bark of red poplar is relatively rough, so it is more than 107,46 poplar canker disease (generally bark rougher than bark-smooth anti-ulcer disease).

(D) The risk of Tianniu is lighter than that of 107, 108, and 46 (Dan Hongyang is a species of anti-Sang Tianniu selected by Han Yifan's researcher).

(5) High tree production, uniform branching, and fine branches, suitable for cultivating unstructured and good materials.

(6) Large amount of rooting and high survival rate of afforestation and nursery.

After years of observation of the growth of red poplar in our base, under the same conditions, the annual growth of DBH in diameter is about 0.8 cm larger than that of 107 and about 1 cm larger than 46 mm. It is speculated that the diameter of DBH of 6- 7 years of Danhongyang Up to more than 30 cm, the volume can be more than 50% larger than the existing species, is currently the fastest growing poplar species in China, planting a red Populus can sell about 100 yuan.

Second, the genetic performance of Dan Hongyang's outstanding performance

Since the founding of New China, China has systematically and systematically introduced four batches of black poplar clones. In the 50's, it was Canada's Yang. In the 60's, it was Shalan Yang, I-214 Yang, and in the 1970s it was I-63 and I-69. , I-72 Yang, 80 is the 50th Yang, 36 Yang, 74 Yang and so on. The clones of poplars bred in China in the past 10 years are mostly hybrids of I-69 and I-63 poplars, such as Zhongqin No. 3 (series No. 8 in Zhongjia No. 8, Zhonggong and Zhongjian, etc.), which are I-69 and I-63 crossbreeding, Nanlin 95, Nanlin 895 is a crossbreeding of I-69 and I-45, 2025 is a crossbreeding of I-69 and North American poplar, Zhonglin 46 is I-69 and Eurasian black poplar In crossbreeding, Lushan Yang is a hybrid of I-69 and Shanhaiguan Yang. Sanhayang is a crossbreeding of Shanhaiguan Yang and I-63. Therefore, some of them have no significant difference in the growth rate of Zhongdang No. 3, and some of them have medium-medium potentials. Number 3 difference. The red poplar is a major breakthrough in poplar breeding in China. Its female parent is No. 50 Yang and its father is No. 36 Yang. It finally broke through the extremely narrow genetic basis of poplar breeding in China with I 69 Yang as the center.

No. 50 Yanghe No. 36 Yang was the best two excellent clones of the 331 clones introduced from 17 member countries of the International Poplar Committee in the early 1980s. The best cultivation area was Huang Huai. In the area and in the middle and lower reaches of the Yangtze River, the average volume growth of the vast plains and lakes is higher than that of I-69 Yang (19.3%, No. 50 Yanggao 27.9%, No. 36 Yanggao 10.7%), and the survival rate of afforestation is higher than 20%. Dan Hongyang’s parents (Yang 50th and 36th) grow faster than their parents (I-69, I-63, etc.) of the major poplar cultivars in the south of China. Poplar has become the fastest growing poplar species in China.

Henan Jiaozuo Dan Hongyang and Juba Yang seedlings base

Address: Beiguo Township, Wushu County, Jiaozuo, Henan Tel Contact: Yuan Haifeng
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Our company is the largest Danhong Yang Juba Yang seedling base in the north of Henan Province. It has more than 1,000 mu of fast-growing poplar-like forest, and more than 200 mu of Danhongyang Juba Yang seedlings. It can provide high-quality Danhongyang and Juba Yang each year. More than 300,000 seeds and seedlings are welcome!

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