ETHYLENE: Fireplaces

Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 8 years ago.

Article Blog   Article Index
A source of ethylene which affect plants grown in the home. A77-702
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Ethylene

Ethylene Comments
ETHYLENE: Cause of Bud Drop It is reported that spraying flowers with a weak solution of silver nitrate can prevent damage; no source given. 0IE85Jy-13 0
ETHYLENE: Controls A product called "Ethysorb", a granular mix of Aluminum oxide and Potassium permanganate, placed in a quilt or a perforated tube absorbs ethylene; a tube costs 25 pounds and lasts three months, with refills available. OR81-186 0
ETHYLENE: Damage to Plants Orchids are the most sensitive of all plants to ethylene; 1 part in five hundred million will injure opening flowers on cattleyas; references given. 72-534; mature flowers are more resistant than buds. A70-535; OD65-400+; other characteristics. OR74-269+; OR74-298+ 0
ETHYLENE: Effect on Buds It does not affect buds or sepals before the flowers open (it says right here); other factors cause bud drop, such as paint inside a water tank (what?). A81-150; bud drop.A82-487 0
ETHYLENE: Effect on Cymbidiums Plants subjected to ethylene showed leaf yellowing after two days and were completele defoliated within one week; plants were placed close to a stack of ripening apples. AU81-101 0
ETHYLENE: Filter Systems Activated charcoal in filter systems have proven successful in protecting greenhouses in San Francisco area from "oxident" and ozone damage but even brominated charcoal has failed. OD65-402; brominated activated charcoal removed every trace of ethylene if the air stream is first passed through a dryer to reduce the relative humidity to less than 10%. OWD 0
ETHYLENE: Flower Damage In a 1,000 cu.ft. closed greenhouse a 100-gram apple producing 10 grs. ethylene (C2H4) per ton per day would produce in one day .03 parts per million, at which damage to flowers would occur; a damaged apple, or partially eaten one, would cause much more damage. OR74-299 0
ETHYLENE: From Natural Gas Leak It took four or five days for the effect to show as bud drop and flower loss on phalaenopsis, OD69-272 0
ETHYLENE: Harmful Effects They are well-established; only at extremely high concentrations of duration do plants themselves adversely react by producing yellow leaves; do not transport plants to shows in a car trunk. A81-791 0
ETHYLENE: How to Detect in a Greenhouse Opening buds of white cattleyas will bleach to green or cream; lavender flowers to pink; if concentration is low only the tips of sepals will be affected; there is no simple chemical test for it. A71-439 0
ETHYLENE: In Citrus Fruits They yield very little. A78-495 0
ETHYLENE: In Nature A ripening gaseous hormone in plants; an air pollutant to orchids; occurs in orchids; within hours of pollination orchid flowers produce it and flowers change; shipping containers permit it to accumulate. OD71-198 0
ETHYLENE: In Normal Greenhouse It can come from a leak in the propane gas line, or from traffic on a near-by road on a foggy night. A79-272 ; cars with catylic converters produce less. A80-356 0
ETHYLENE: Plants Not Susceptible to It Paphiopedilums are very resistant; they can be grown well under lights; they can replace cattleyas and phalaenopsis. A68-331 0
ETHYLENE: Preventive of Bud Drop Spraying dendrobiums and phalaenopsis in bud with silver nitrate 100 parts to 1 million of water will prevent bud drop, especially in the fall. ODA76(4)-32 0
ETHYLENE: Scrubbers Greenhouse air can be circulated through commercial machines to remove most of it if the house is closed tightly enough. AH86-107 0
ETHYLENE: Smoking Tobacco as a Source There is considerable ethylene in a room where several people are smoking. A69-614 0
ETHYLENE: Testing for Use small tomato plants which show a strong reaction to ethylene; the leaves bend downward from the stem, stiff but not wilted. A77-449 0
ETHYLENE: To Check for Presence in Greenhouse A laboratory test requiring a flame gas chromotography costs several thousand dollars; use young tomato plants, the response is unmistakable; the leaves grow down stiffly. A71-1102; A74-433 0
ETHYLENE: To Measure Content in Greenhouse on a Scientific Basis Use of the gas chromotograph outlined; refer to A69-415 0

New Topics

  1. James W McCully asked question How to read archived articles ? in category General Discussion
  2. David George asked question recently purchased orchid - what to expect in category General Discussion
  3. Danielle Carbonneau asked question phalaenopsis, dendrochum and Odontoglossum in category Phalaenopsis
  4. Nicholas Filannino asked question Phalaenopsis William Kistler? in category General Discussion
  5. Mark Farran asked question How to open and read articles listed in category General Discussion
Ask a Question

Start a Topic

New Comments

  1. Louis Wilson commented on member plant E. alata f. alba by Louis Wilson
  2. Julie Ellner commented on member plant Phal. amabilis var. formosanum by Vickie Seibert
  3. Julie Ellner commented on member plant Rlc. Green Dragoon 'Mendenhall' by Jeanne Uzar Hudson
  4. Danielle Carbonneau commented on member plant Ons. Catatante 'Los Roble' by Henry Shaw
  5. Barry J Silver commented on orchid Lyon. SunCoast Pink Passion
  6. Carol Holdren commented on topic "Phalaenopsis William Kistler?" by Nicholas Filannino
  7. Carol Holdren commented on orchid Colm. Eric Gabriel Heines
  8. Carol Holdren commented on topic "Cattleya little susie" by Juliann Eckhard
  9. Carol Holdren commented on member plant Bc. Morning Glory by Chris Siolo
  10. R .Benson commented on member plant Kir. New Hybrid (Fred Clarke) SVO9831 by R .Benson
  11. Carol Holdren commented on topic "Blooming Stenglottis Venus “jamboree “" by John Urey
  12. Jeanne Uzar Hudson commented on member plant Lc. Canhamiana var. coerulea 'Cobalt' by Jeanne Uzar Hudson
  13. Jeanne Uzar Hudson commented on member plant Sns. gemmata by Jeanne Uzar Hudson
  14. Stefan Neher commented on topic "Orchid roots .com site?" by Mary Lane
  15. Kevin Barry commented on member plant Bul. Tammie Sue Pernas by Tony Pernas
  16. Linda Hartman commented on member plant Ctt. Final Blue by Linda Hartman
  17. Kevin Bergeson commented on member plant Paph. rothschildianum by Kevin Bergeson
  18. Carol Holdren commented on topic "recently purchased orchid shows unstoppable roots " by David George
  19. Michael Makio commented on orchid V. Beatrice Makio
  20. Carol Holdren commented on topic "shorter stem with less vigorous blooms" by katherine mott