Development Status of Crop Germplasm Bank in China
China attaches great importance to the construction of crop germplasm resources and its information system. As early as the early 1980s, Zhejiang, Shanghai and other provinces and cities began to establish a single crop database. Until now, most of the provinces and cities in the country have established their own databases. The germplasm resources of crops are the strategic resources for human survival and development, and they are the basic guarantee for maintaining the food security of Tibet and the sustainable development of agriculture. Previously, Tibet's germplasm resources information was recorded on the record book. When it was searched, it was very troublesome. Take barley resources as an example. There are sometimes as many as 3-5 books in one year, and you can find the information you need. The workload was very large, time-consuming, and prone to errors. In light of this situation, with the attention and support of the Autonomous Region Department of Science and Technology, a preliminary information system for the germplasm resources of Tibet was established in 2003, and resources and data management were realized. The scientificization and permanence promoted the research of Tibet's crop germplasm resources and improved the efficiency of agricultural scientific research and production services.
Later, with the cooperation and efforts of the relevant units, the current database information system was initially established. The information system has now stored wild varieties of wheat, barley, buckwheat, peas, broad bean and other crops, farm varieties, cultivars, and imported varieties at home and abroad, totaling 8,750. Germplasm resources in the system include basic data on crop germplasm, botanical forms, and agronomic traits. The system has so far stored 3,107 barley resources, 3810 wheat resources, 360 peas, and 80 buckwheat resources, and continued to expand. The rich germplasm resources information and unified information processing specifications provide a simple and rapid and effective method for the evaluation and utilization of germplasm resources.
Feature:
Wood glue is also called white glue, this product is water polymer emulsion, has the characteristics of high viscosity, non-toxic, not smelly, dry quick and so on
Main Component:
Polyvinyl acetate emulsion unit, water, filler.
Scope of application:
50% solid content mainly for water-solubility construction coating raw material, to the lumber, the paper, the leather, the linter fabric, the cement and the foam plastics and so on has the good binding property, may serve as the books wireless to bind, cigarette, boding and sizing of fabrics.
40% solid content is mainly for wood processing, cigarette and bonding and sizing of fabric. 30% solid content mainly use as sticks for paper, small lumber, available in paper processing (paper pulp chemical additive, paper soaking, spreads cloth to help medicinal preparation), fabric processing, cement intensifier, handicraft production and culture and education office supplies bond.
25% solid content mainly uses in the officing, printing, the paper box processing, the low-grade paper tube processing, the handicraft and the paper caking and so on.
Using Method:
1, The joint surface must be clean, dry.
2, Spreads the glue on the joint surface, presses till solidification, maintains for 24 hours under the room temperature to achieve the use intensity.
Warning:
1, The iron barrel packing is strictly prohibited
2, The using temperature should be 10 ℃ or above; After agglutination product before solidification, also should maintain in 10 ℃ above. Otherwise will cause viscosity drop if the emulsion not form good cover.
3, Wipe the bottle mouth clean after use, cover rapidly for usage next time.
4, IF the glue with half coagulation condition please mix evenly, does not affect the viscosity.
5, The water content of wood should be controlled between 8~15%,more or less content will affect the viscosity quality.
6, Do not get into mouth, keep our reach of kids.
Storage and packing:
1, The product should be stored at temperature 5~37℃ in sealed non-metal container, prevent from freeze and high temperature. The shelf life is one year from date of production. It is available to use based on passing of the test if being beyond the shelf life.
2, If the glue slightly freezes, should place in 30~40 ℃ greenhouses the full alleviation, and stirs evenly, does not affect the use. If the glue long time receives seriously freezes, cannot alleviate, appears agglomerates, the lamination even emulsion breaking, then cannot continue to use.
3, Preserve and transport as flammable products.
4, 500g/bottle, 1000g/bottle, 5kg/barrel, 15kg/barrel,in plastic bottle(barrel)
Wood Glue,White Glue,Outdoor Wood Glue,Pva Wood Glue
Hunan Magpow Adhesive Group co.,ltd , https://www.magicglue.net