Rose multiflora var.cathayensis is a cultivar variety of rose plant. It is a deciduous climbing shrub of Rosaceae. It is native to central China and southern provinces and has a long history of cultivation in China. Its color, fragrance and shape are superb. It is resistant to drought, cold, and barrenness. It has extremely high ornamental value and garden application potential. 1 morphological characteristics of rose branches slender hairless, short and slightly curved prickles, leaflets 5 to 9, apex is more pointed; near inflorescence leaves sometimes 3, obovate, oblong or ovate, 1.5 ~ 5cm in length, There are sharp single serrations on the edge, heavy serrated teeth, no glabrous hair above, and pilose on the back; stipules are dentate, mostly attached to petiole, with margins of glandular hairs. Inflorescences of conical corymbs; pedicels 1.5-2.5 cm long, glabrous or glandular hairy; flowering ca. 1.5-2 cm; sepals lanceolate, sometimes with 2 linear lobes middle, glabrous outside, inner surface Felucible; petals pink or rose-red, clusters of corymbose; styles close together, glabrous, slightly longer than stamens; flowering from late April to early June. Fruit nearly spherical, about 6mm in diameter, red-brown, sepals off. 2 Ecological Habits Rose Hi Sunny, not tolerant to shade, strong cold, in most parts of northern China can open winter. The soil is not strict, drought-resistant, water-resistant, and barren-resistant. It grows better in deep, fertile, and well-drained soils. 3 Breeding of rose breeding uses cuttings and sowing, as well as methods of tissue culture, hydroponics, grafting, layering, and ramets. 3.1 Cutting propagation Cutting propagation can maintain the intrinsic characteristics of varieties, can achieve rapid propagation in a short period of time, and is easy to operate. Therefore, it is often used in the reproduction of roses. Cuttings are generally performed in early summer. The cuttings were selected to be robust and semi-lignified branches without pests and diseases in the year, and were cut at 10-15 cm, with 2 to 3 nodes, leaving 2 to 4 leaflets at the tip of the cuttings, and 1/3 of the big leaves were cut off. The upper end of the bud was cut into a flat mouth at a distance of 0.5 to 1 cm, and the lower end was cut into an oblique mouth. The matrix can use fine furnace ash and clean river sand. The gravel bed is laid on the bottom of the interposer to increase the air permeability and water permeability. Before the cutting, 0.5% potassium permanganate solution can be used to completely disinfect the spray sprinkling bed, and then rinse with fresh water. Cutting depth of 5 ~ 7cm, spacing 5cm8cm, oblique insertion, cuttings with a wooden stick hole, to prevent cuttings from entering the injury, affecting rooting. Immediately after cutting, water was sprayed on the cuttings to keep the substrate moist and prevent wilting. Generally spray water 2 or 3 times a day, the temperature increased, the number of water spray corresponding increase, the ground temperature is generally controlled at 20 ~ 25 °C, humidity 85% -90%, before cutting roots need to cover shading nets during the day, most of the plug after 25d The article begins to take root. If rooting powder is used to treat cuttings, the rooting rate can be significantly improved.
he Fluorine-Containing Phenol series product is toxic and irritating, it should be avoided absorbed into the body through the skin. And not allow to store with strong oxidant, alkali, hydrochloric acid and acid anhydride , Store with flammable liquid or solid,must be away from heat and open flames,it should be stored in a cool dry place. Most of the fluorine-Containing Phenol products are stable at room temperature and pressure, but avoid contact with the oxide. In the air it is easily oxidized color.
Manufacture and storage of fluorine-containing phenol series should be carried out in a well ventilated place. Wear appropriate protective equipment and prevent dust from spreading. Wash hands and face thoroughly after handling.
Most of the fluorine-containing phenol series of products can be sublimated. It can cause severe skin burns and eye damage.
So save the fluorine-containing phenol series in sealed containers must be stored in a cool, dark place. It must be stored locked. In the event of a fire extinguishing agent is suitable dry powder, alcohol-resistant foam, water spray, carbon dioxide.
Fluorine-Containing Phenol
Containing Phenol,2-Bromo-4-Methylphenol,2-Chloro-3-Fluorophenol
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