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Plastic Seedling Trays Wholesale Price Bangladesh


It has the following advantages: short time from construction to production, and early fruit setting(72 cell plug trays supplier). The genetic quality and sowing quality of seeds were improved to some extent, and the seed yield was high. The plants with poor growth, crooked stem, irregular crown, thick lateral branches(bulk 20 gallon pots), obviously infected by diseases and insect pests and poor seed setting should be removed.


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Centralized area, easy to manage and collect seeds. In the process of growth and development, the same age forest is generally selected for the mother forest(gallon pot). For example, if the different age forest is selected, the age difference between the mother trees should not be too large(72 cell propagation trays wholesale). The average age of the stand should be determined according to the different tree species. Generally, the stand should be in the full fruit period.(plastic seedling trays wholesale price bangladesh)


Simple technology, less investment(square grow pots). After the determination of the stand, the growth and distribution of the trees in the stand should be investigated, and the stand classification should be evaluated from the aspects of growth amount, stem shape, crown structure and crown width, resistance to diseases and pests, etc(sureroot plug trays bulk). the plants with good performance should be selected as the mother trees. They call the stand an artificial gene bank.


(plastic seedling trays wholesale price bangladesh)The intensity of thinning has a great influence on the growth and development of mother trees, which should be determined according to the characteristics of tree species, partial density, forest age and site conditions(greenhouse supplies pots). In order to ensure the genetic resources of good stand, more than two hours of afforestation were conducted in two or more sites(72 cell seed trays wholesale). Ex situ conservation refers to planting the collected seeds and strips in other suitable areas.


The age of fast-growing tree species can be appropriately reduced(plastic plant pots wholesale suppliers). Pure forest is the best choice for mother tree forest. If mixed forest is selected, the number of target tree species should account for more than 50%, and real forest should be selected for mother tree forest(blow molded nursery pots). In order to improve seed yield and quality, reasonable water and fertilizer management should also be carried out to promote flowering and fruit bearing.


For example, the preserved pine forest, without human intervention, will gradually be replaced by the broad-leaved tree species after a certain period of time, and finally the pine trees will disappear or significantly reduce(7 gallon nursery pots bulk). In order to preserve the required forest composition, necessary management measures still need to be taken(bulk 15 gallon pots). In Czechoslovakia, the reserved excellent forest is classified, and the best forest is strictly prohibited to be cut.


The provenance test forest, superior tree progeny test forest, superior tree collection and fixation(plastic plant trays wholesale), as well as the stand constructed by collecting seeds from excellent natural (or artificial) forest are all easy to be preserved. This is a widely used way of conservation(bulk 10 gallon pots). Japan's excellent natural (or artificial) forests for the main afforestation species in the country are different from the protection of scenic forests or ecological forests.(plastic seedling trays wholesale price bangladesh)


The number of plants collected is a controversial issue. C. Numkowmg and others suggested that 50 plants could be collected to conserve the genetic variation of genes(cheap plastic plant pots bulk); if there are less than 20 plants, the future breeding potential will be affected. Therefore, the selection of plants with good economic characters, or the selection of plants with poor economic characters(bulk 14 gallon pots), are similar in terms of permeability or resistance.


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