A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
|Acaricide||Acaricide (from Greek. Ákari - mite and lat. Caedo - kill), chemical substances intended for combat mites. Subdivided into specific (valid only for ticks), and substances harmful also for the insects (insektoakaritsidy). Acaricide may act on the adult mites, their larvae or eggs (ovitsidy). Acaricide represented different groups of chemical compounds: antio, fozalon, fosfamid (BI-58) and others - organophosphorus; tedion and others - chlororganic; sulfur and omayt - sulfa. Refers to the means of plant protection.|
|Epidermis||The epidermis covers the lower and upper sides of the leaf. Each side is composed of a single layer of closely-packed rectangular cells. The layers are translucent and are covered with a cuticle on the outer wall. There are many stomata perforating the lower surface. Each stomata are surrounded by a set of guard cells that contain chlorophyll.|
|ephemera||- a plant that has green parts up the land only for a short period|
|Gipoderma||Gipoderma - in plants - one or several layers of cells, located under the epidermis. Usually gipoderma plays the role of mechanical or to save water.|
|Gutta||Gutta - allocation of plants drop excess water and salt water through the stomatal. Gutta occurs when difficult transpiration.|
|geophyte||perennial plant that generates by subterranean bulbs or corms; plant that grows in earth|
|Insecticides||Insecticides (from Lat. Insectum - insect and caedo - kill), chemical pest. Depending on the ways in which IM penetrate the insect body, they divided into groups: enteric, contact, system, or vnutrirastitelnye and breathing.|
|Pseudobulb||The pseudobulb is a storage organ derived from the part of a stem between two leaf nodes. It applies to the orchid family (Orchidaceae), specifically certain groups of epiphytic orchids, and may be single or composed of several internodes with evergreen or deciduous leaves along its length. In some species, it is hardly swollen at all and looks like a normal stem with many leaves while at the other extreme, some genera such as Bulbophyllum have single, spherical pseudobulbs with one (or two) leafs at the apex of each. Whether cane-like (with many joints) or spherical (with one or few joints), they are all produced from a long lived creeping stem called a rhizome which may itself be climbing or pendulous. The pseudobulbs are themselves relatively short lived (1-5 years), but are continually produced from the growing tip of the rhizome. The other growth habit used by tropical epiphytic orchids is known as monopodial.|
|The structure of the orchids flower||
1. Sepals - Although they may look like petals, they are actually the glorified remains of the flower bud. There are usually three of approximately equal size.
2. Petals - Orchids always have three petals. Two are "normal," and the third becomes a highly specialized structure called a lip.
3. Lip or Labellum - The lower petal of an orchid. Used by the flower to provide a 'landing platform' for its pollinator.
4. Column - A finger-like structure that carries the orchid's reproductive organs--the stigmatic surface (female organs) and the Pollinia (male organs) located under the Anther Cap.
|SLC||Sophrolaeliocattleya As the name implies this genus has Cattleya, Laelia, and Sophronitus in it's parentage. They are more often intermediate growers than not and enjoy pot culture. This genus has many minature plants due to the influence of Sophronitus.|
|Stomata||A stoma or pore is formed by a pair of bean-shaped guard cells. The guard cells have the ability to open and close the stoma. The inner walls of the guard cells are thick and the outer walls thin. Guard cells differ from the translucent epidermal cells in that they contain chloroplasts. Stomata communicate with the air chambers in the spongy mesophyll. There are more stomata on the lower epidermis of the leaf than the upper epidermis.|