light transmission

Listing 1 - 10 from 51 for light transmission

Bribie Island Orchid Society - Orchid Information and Photographs
... cases one and a half to two years). Growing Conditions Light - 40 to 10% light transmission. I currently use 25 to 12% but will ... never receive direct sunlight. They are a low light orchid but need adequate light for at least part of the day in ... grow at a steady constant rate throughout the year given optimum light and temperature conditions, they need fairly consistent watering and fertilizing. ...
www.bribieislandorchidsociety.com

Season Extenders
... reach 80°F. Problems associated with row covers are lower light transmission, as nonwoven materials allow 75 to 80% transmission of light to the crop. The fabric covers can be extended ... solar energy and photosynthetic photon flux, respectively. The reduced light transmittance contributes to poor plant development inside hotcaps. Low light transmittance may lead to stunted and/or chlorotic plants. ...
www.ext.vt.edu

Garden greenhouse different glazing types and methods.
... your greenhouse. Twin wall or double glazed polycarbonate has a light transmission of around 85%, single wall polycarbonate has a light transmission even better than glass, around 96%. Fibreglass has much the ... are the way forward. Triple glazed polycarbonate retains the heat extremely well and the light transmission is excellent. Polycarbonate also has the advantage that it is stronger than glass or ...
www.gardenaction.co.uk

The Lean-To Greenhouse. How to Choose and Select a garden Greenhouse.
... plants in your greenhouse, and maximum light transmission is important because the sun is so low in the sky and days are generally more cloudy. Light transmission is not so important in the summer months because there is more than enough light to go round. When thinking about light transmission, the obvious needs to be ...
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Greenhouses and Ferns
... last three to five years and allow up to 89% light transmission. Sold under many trade names, they are available in many ... 3/4 to 4 inches thick. Although there is some light transmission loss, heating costs are reduced by one third. Another innovation ... these are double skinned (for insulation) or corrugated. Acrylic transmits light better but polycarbonate is stronger and more resistant to impact ...
www.sdfern.com

Citrus Diseases Exotic to Florida: Citrus Variegated Chlorosis (CVC)
... health conditions (diseases, nutritional deficiencies). However, the causal bacterium can be identified by light and electron microscopy and can be cultured on appropriate media. Serological tests are ... 81:1196-1198. Brlansky, R. H., V. D. Damsteegt, and J. S. Hartung. 2002. Transmission of the citrus variegated chlorosis bacterium, Xylella fastidiosa, with the Florida sharpshooter, Oncometopia ...
edis.ifas.ufl.edu

PlanetaCactus: Cactus genetics - Mendel's Law
... :: Forums :: Links :: Contact Cactus family Conformation Distribution Annual cycle Color and shape variations Temperature, light and ventilation Soil and fertilizing Watering Pots and transplants Pests and diseases Cactus ... which take place in his garden with certain vegetal species. Mendel worked on the transmission of the characters of the plants through successive generations, in which today is ...
english.planetacactus.com

Guide to Understanding and Managing Lakes: Part I (Physical Measurements)
... , when divided by the Secchi disc transparencies, provides reasonable estimates of the vertical light extinction coefficients. Light extinction coefficients for natural lake waters range from 0.2 for clear ... waters, but the amount of light penetrating into the lake is a major regulating factor that controls aquatic plant production. Clear lakes with high light-transmission values are conducive to ...
www.ext.vt.edu

FACT SHEET:"Mentoring the New Hobbyist", Marilyn Light, 8 Sep 99
... THE NEW HOBBYIST - in the spirit of conservation by Marilyn H.S. Light Copyright 1999 I expect that many of us have entered the ... the wise counsel of a senior hobbyist who cautioned about disease transmission or who pointed out that "To save a plant you give a ... we practice sanitation in our collections and employ methods to reduce the transmission of virus diseases such as using a new razor blade to ...
www.geocities.com/~marylois

Conservation Part 23: Practicing Conservation at Shows, by Marilyn Light, 12 May 99
... near neighbors. Go Back to Index TRANSCRIPT PRACTICING CONSERVATION AT SHOWS Moderator: Marilyn Light Wed, 12 May 99 Neil24 (Neil - Israel) Dig Orchids (Doug - Houston) marylois (northwest ... registered, own-use nursery. marilyninOttawa Insects, especially aphids, have been implicated in virus transmission as in Bean Yellow Mosaic Virus that badly affects Masdevallias. Sucking insects pierce ...
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