Jumat, 10 Juli 2009

About Orchid

Naturally Orchid (Family Orchidaceous) epiphyte living on tree branches and other plants, but in growth can orchid plant in a pot filled with a certain media. There are several factors that affect plant growth, such as environmental factors, such as sunlight, humidity and temperature and maintenance such as: fertilization, sprinkling and control opt.

In general, orchids, orchids that need temperature 28 + 2 ° C with minimum temperature 15 ° C. Orchid land is generally more refractory than the orchid pot. But the high temperatures can cause dehydration which can prevent plant growth.

Relative humidity (RH), which required it to be between 60-85%. Function of high humidity for the plant, among others, to avoid the evaporation that is too high. Humidity at night in order not to be too high, because it can lead to rotten roots in the young shoot-shoot. Therefore grown in a pot so that the media should not unduly wet. While the humidity is very low in the afternoon can be overcome with the way the fog spray (mist) around place with the help of sprayer.

Depend growth pattern, orchid plants can be divided into two types, namely, symposia and monopodium. Orchid simpodial is a type of orchid does not have a main stem, flowers to the outside edge of the trunk and back of the child-bearing plant that grows. Except in the orchid species Dendrobium sp. who can issue the new flower stalk on the stem-side. Examples of orchid type’s simpodial are: Dendrobium sp., Cattleya sp., Oncidium sp. and Cymbidium sp. Orchid simpodial types in general are epifit.

Orchid monopodial type of orchid that is characterized by growing point is there in the end of the stem, pertumbuhannnya straight up on one stem. Interest to the outside of the stem between two leaf axilla. Sample type monopodial orchids are: Vanda sp., Arachnis sp., Renanthera sp., Phalaenopsis sp., And Aranthera sp.

Habitat orchid plants can be divided into 4 groups as follows:

* Orchid epifit, the orchid that grows on trees stay another without prejudice inangnya and plants need light shade from the sun, for example, Cattleya sp. require light +40%, Dendrobium sp. 50-60%, Phalaenopsis sp. + 30%, and Oncidium sp. 60 - 75%.
* Orchid terestrial, the orchid that grows in the soil and requires direct sunlight, for example Aranthera sp., Renanthera sp., Vanda sp. and Arachnis sp.
Terestrial orchid plants need sunlight 70 - 100%, with afternoon temperatures in the range of 19 - 380C, and the night 18-210C. While for the type of orchid Vanda sp. who need a little wide-leaved shade.
* Anggrek litofit, the orchids that grow on the stones, and resistant to full sunlight, such as Dendrobium phalaenopsis.
* Anggrek saprofit, the orchid that grows on media containing humus or leaves dry, and requires less sunlight, such as Goodyera sp.

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