Fast-growing seedlings wholesale Shandong pumila pumila seedlings of fast-growing agent

Fast-growing seedlings wholesale Shandong pumila pumila seedlings of fast-growing high salinity proxy pumila fast-growing new varieties is only in recent years to market. Pumila is a fast-growing new varieties by the Shandong Provincial Academy and Shanghai Science and Technology Development Co., Ltd. plant fir a common breeding, elm currently fast-growing new varieties have been planted in Dongying saline high success. July 2011 on the horse farm 3-4 ‰ saline estuary, planting 10 cm tissue culture, the survival rate was 98%. October 2012 measure, the maximum growth height of 6.1 m, an average of 4.5 meters. Meanwhile planted in Lijin, Kenli saline and other fast-growing elm also showed significant speed nature and saline-alkali resistance. Shandong Province Academy of years of research, on more than 200 varieties in the national collection of elm comparison test, in 2006 selected the 60 fast-growing, pest resistant varieties pumila material. Shan Shanghai company and then by a five-year science and technology research, the use of tissue culture techniques, the establishment of tissue culture system, induction of embryonic cells, set different salinity gradient test, through iterative screening salt tolerance pumila accumulating new varieties. This variety has the following characteristics: 1, fast growth. Common pumila annual seedlings grow only about 1.5 meters height, and fast-growing tissue culture elm year growth of up to 4 m height. Elm planting of fast-growing high-yield forests, the annual growth of up to 3.5 cm diameter, 6-year-old average diameter of 22 cm up to 28 cm. 2, salinity. General coastal areas most species of ash trees salinity, salinity up to 4.5 ‰, while the fast-growing elm salinity of 5-6 ‰, soil PH value 8-9. 3, strong resistance. Because pests more common pumila, growing slowly, gradually be eliminated, and the fast-growing elm disease and insect resistance after screening, with a strong resistance to pests and diseases. It also has a drought, cold resistance, barren and other excellent features. 4, a wide range. It can be widely planted in the northeast, north, northwest, east and other regions. 5, more afforestation purposes. Because of its fast-growing, salt tolerance, resistance is strong, a tree, and can be widely used in coastal shelterbelt projects, strategic timber reserve base, the Yellow River shelterbelt project, plains greening projects, engineering, urban garden afforestation projects. 6, good material. Heavy timber firm, moderate hardness, high mechanical strength, and shiny, with the pattern, with toughness, good bend-around performance, wear, corrosion, etc., shipbuilding, construction, interior decoration flooring, furniture, fine fine timber. Pumila prospect of a fast-growing urban landscaping projects due pumila tree beautiful, color-rich seasonal changes, is an excellent ornamental trees. The garden can be used in residential areas and garden green, green streets and squares and factories, mines, scenic forest green, rural and urban greening. It can also be used grafting or weeping elm Ulmus pumila, for parks and landscaping. Second, the Three-North Shelterbelt construction of five works (2011-2020) Three-North Shelterbelt five involved in the three northern regions of 13 provinces (autonomous regions and municipalities) in 600 counties and the Xinjiang Production and Construction Corps, the planned total investment of over 90 billion yuan. Since pumila drought-resistant, resistant barren, salinity, the Three-North Shelterbelt northwest desert area, a hilly region, North China, Northeast China Plain agricultural areas and sandy zone 4 class areas, there are three important areas designed to pumila afforestation species. Third, Beijing and Tianjin sandstorm source control Phase II (2013-2022), including Beijing, Tianjin, Hebei, Shanxi, Inner Mongolia, Shaanxi six provinces (autonomous regions and municipalities), 138 counties (banners, city, district), planning a total investment 87.792 billion yuan. Since pumila strong wind, drought-resistant, the desertified land area is designed as an important anti-desertification Afforestation pumila species. Fourth, the timber reserve strategic project (2013-2020) in 25 provinces (autonomous regions) and four Forest Industry Group total 29 units, 851 counties (cities, districts) and state-owned forest farms included in the timber stock planning, planning a total investment 198.067 billion yuan. Plan clearly made major developments in the North China Plain base poplar, paulownia, acacia, elm and other short periodic timber species, pine, pistache, catalpa trees or large diameter class timber of rare species. Five coastal shelterbelt construction project (2006-2015) including Liaoning, Hebei and other coastal 11 provinces (autonomous regions and municipalities) and five municipalities, Dalian, Qingdao, planning a total investment of 9.984 billion yuan. Because pumila salinity, the coastal shelterbelt planning 12 natural areas, including six natural areas planned pumila afforestation. Sixth, the Taihang Mountains afforestation project Taihang Mountains afforestation project includes Shanxi, Henan, Hebei, Beijing and four provinces (municipalities) 110 counties. Since pumila resistance, barren, water power, shelterbelts Taihang Mountains afforestation project planning five forest species, there are four forest species that is soil conservation forests, sand-fixing forest, farmland and grassland protection, revetment protection forests, afforestation planning pumila. Propagation techniques of fast-growing high salinity of fast-growing new varieties pumila pumila from hundreds of new varieties is preferred pumila natural lines out, to retain their good traits only through asexual reproduction, ie tissue culture and cutting propagation. The method currently used in vitro tissue culture propagation of fast-growing new varieties pumila only one exclusive Shan Shanghai, due to market demand, seedlings in short supply, although prices have been rising, but seedlings predetermined amount of the company's rising, after six months in order to get a predetermined seedling . The summer of 2013, Rugao City Kehai Plant Breeding Institute of Technology 马金海 students - Shandong Linyi Wei Yingjie to Get an introduction from Shanghai cedar plantlets 800 to 马金海 teacher for cutting propagation experiment using a leaf bud propagation methods to September more than 80,000 seedling breeding high strain (or earlier if continued warming breeding began breeding in June, when can achieve 1 million). Cutting propagation test summed up the most effective rooting formulation, five days to take root; summarizes the most simple and effective cutting propagation mode; sterilized soil or substrate, temperature and humidity management and so a systematic study, the basic maturity technology next year will be widely used for mass seedling production. There are more than 50 cm --2 meters height with different specifications, the base relocation facing national planning. Rugao City Kehai Plant Breeding Institute of Technology, fast-growing seedlings wholesale Shandong pumila pumila seedlings of fast-growing agent