Introduction Experiment of Japanese Three Ji Hong and Fast-growing Lagerstroemia Rose

The fast-growing Lagerstroemia speciosa, the latest variety of Lagerstroemia speciosa, is a variety selected from Lagerstroemia speciosa. The observation of asexual reproduction shows that its character is stable and its growth is extremely fast, which is faster than all Ziwei varieties at present. The annual ground diameter growth can reach about 3CM, and the trunk diameter of seedlings can reach 5-6CM after two years of planting and 8-9.2CM after three years of fixed value. The fast-growing Lagerstroemia speciosa has a straight trunk and excellent appearance. Its leaves are very large, the mature leaves are 7CM wide and 1 1CM long, and the leaves are green. Flowering began in early July, and the flowering period was more than 1 10 days, with a large amount of flowers. The first flower is big red and turns into rose red, with dense panicles, the longest inflorescence is 38CM and the bottom width is 16CM. Strong adaptability, drought tolerance, saline-alkali tolerance, love of humidity, love of fertilizer, love of sunshine, resistance to aphids and coal ash disease is better than other Lagerstroemia indica varieties. Cold resistance has not been accurately tested at present, but the place where fast-growing Lagerstroemia indica can be planted must be suitable for planting.

The fast-growing Lagerstroemia speciosa has the advantages of rose color, super-fast growth, high resistance to aphids, high resistance to soot disease, etc. Combined with the current national trend of "big seedlings go to cities, big trees don't go to cities", its repayment speed is faster, which is more than three times higher than that of ordinary Lagerstroemia speciosa, and it will gradually replace ordinary Lagerstroemia speciosa in China. Therefore, the fast-growing red Lagerstroemia indica is called "the new Lagerstroemia indica variety with the most development potential", which is worthy of the name.

Ji Hong, Japan: Small deciduous tree with planting height of 5-8 meters, faster growth rate than common red maple, strong vertical leaves, serrated leaves, red leaves and stems all year round, and does not change with seasons. When the temperature is high in summer, the leaves of ordinary Japanese red maple will turn green, and the whole Japanese red maple Ji Hong is still beautiful red, and the leaves are not burnt or scorched. I like warm and humid environment, cold-resistant, semi-shade-resistant, and lax in soil requirements. Viewing leaves in three seasons is an irreplaceable treasure for engineering landscaping and embellishment. It is best to plant with other foliage plants and flower plants to highlight the characteristics of "Three Ji Hong".