How to identify diseased seedlings from appearance
In the current seedling market, some individual flower and wood traders often use fake saplings of seedlings as healthy seedlings for sale. People who lack the ability to identify diseases and diseases are easily fooled. The appearance identification methods of several diseased seedlings and healthy seedlings are described below. Camellia robust Camellia leaves thick and hard, dark green above the leaves, there is a thick layer of wax and luster, the leaves below the light green, flat and smooth. Diseased Camellia seedling leaves yellow, lean, sparse or with mildew on leaf surface, or scattered brown dots on the back or branches of leaves, most of them are parasitic seedlings of tea scale insects, or on the foliage Rye spots can be seen on the naked eye, all of which are caused by the infection of C. hirsutum. Jasmine robust jasmine seedling leaves green, branches with a layer of soft hair, leaves stiff and straight. The jasmine stem of the diseased stalk has water-stained brown spots on its base, and some leaves have black granules or yellowish-white spots with curly leaves. Some of the leaves have white moldy, the leaves are water-stained, mostly caused by the disease caused by the disease. Five-needle pine robust seedling needles green, compact and beautiful plant shape, branches evenly distributed, plant vigorous and upright, the root system revealed the knot, no roots, the trunk is thick and naturally curved, dense internode. The diseased seedlings yellow needles, lack of leaves or with spots, pine needles slender, loose, similar to scattered hair, not many roots, with less soil. The robust plum blossom seedling branchlets are slender, green and hairless. The seedlings are purple-brown with vertical stripes and well-developed root system. The diseased plum leaves and young shoots have brown or dark brown spots. The young leaves are curled and the roots are thin. Some of them can be seen as white powdery substances on young leaves. These are infected seedlings infected with pathogens. Later, the illness left. The peony has strong scented peony flowers, leaflets grayish green, and white frost on the back of each leaf. Petiole longer, young shoots are red purple or green. The leaves of the diseased peony seedlings have purple-brown round black spots or black fungus layers. Some rhizomes have white mycelium on the surface and the roots are black. This is a typical sick flower seedling.
API (Active Pharmaceutical Ingredient) refers to a substance or substance combination used in manufacturing a drug product. API also refers to the active or central ingredient in the product which causes the direct effect on the disease diagnosis, prevention, treatment or cure. While API is the active component of a drug, excipients are the inactive or inert substances present in a drug.
An API starting material, usually a defined chemical property purchased in the market place or produced in-house, is used in the production of an API.
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