First, the vegetative growth stage:
Â
　　 1 , germination period : from sowing, emergence to the first true leaf revealed, it takes 3 to 4 days;
Â
　　 2 , seedling period: from the true leaves revealed to the group of seedlings, the early-maturing varieties of autumn sowing need 16 to 18 days, the late-maturing varieties need 20 to 22 days;
Â
　　 3 , rosette period: from the group to complete the growth of rosette leaves, that is, the leaves of the second or third leaf ring of the middle leaf, the early maturing varieties are 18 to 20 days, and the late maturing varieties are 25 to 28 days;
Â
　　 4 , the balling period: from the beginning of the ball to the harvest, early maturing varieties 25 to 30 days, late maturing varieties 40 to 55 days;
Â
　　 5 , dormant period: the leaf ball is forced to sleep when it encounters low temperature.
Â
Second, the reproductive growth stage:
Â
　　 1 , the convulsion period. The dormant plants began to grow slowly in the plants at the beginning of the spring of the next year. After colonization, they gradually resumed growth and extracted stems and leaves and primary branches, and began to flower as a critical feature of the pumping stage.
Â
　　 2 , flowering period. From the beginning of flowering to the flowering period, as the flowers of the whole plant are opened successively, the flowering branches also grow rapidly, and the second and third-level branches also grow.
Â
　　 3 , the pod period. After the flower is thanked, the fruit pod grows, the seed develops, and the fruit is matured to the pod-forming stage.
Â
Source: China Agricultural Promotion Network
High Speed self-Recovery Rapid doors are the technological evolution of old, PVC high speed doors or heavy folding doors, now obsolete and not suited to today's industrial needs.
High-quality panels, the resistive safety edge fitted to the bottom edge of the door, photocells and barriers make this product both safe and durable, being totally self-repairing, thanks to its special [Anti Crash System".
This door designed with a perimeter structure in galvanized or stainless steel, which is ideal for sliding panels. The door panel rides effortlessly within a track, thanks to the special profile and hinge designed by us, requiring low maintenance. The panel is rolled up on a roller placed within the upper crossbeam.
The door can be equipped with a counterweight or ups batteries, to fully open the door in case of power failure, and can also be equipped with large transparent sections to create a brighter and safer working environment.
Self-Repairing Door Curtain made of reinforced PVC, with flexible weighted soft bottom edge.
The edge of curtain has continuous injection molded teeth that then move up and down in a self-lubricating polyethylene track attached to structural galvanized side frames.
Self-Recovery Rapid Door,Self Recovery PVC Rapid Door,Self Recovery Rapid Rolling Door,Self Healing Roll Door
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.selfrepairinghighspeeddoor.com