Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago
Such hormones are not necessary when repotting divisions. A75-1007
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ROOTS: Aerial
Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago
They appear on miniature cymbidiums being summered outdoors; if grown in small or open-sided containers, roots will develop outside the container, especially if they are benched close together; try...
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ROOTS: Cattleyas
Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago
The aerial roots turn brown and wither while others turn black where they touch the bark; the water supply may have been softened with a chemical, particularly sodium. A75-618
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ROOTS: Growth Is Very Poor
Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago
Paphiopedilums under lights normally make small roots and need little fertilizer; in bark media formulas such as 20-20-20 or 23-19-17 are not appropriate; use 30-10-10 or 20-10-10. A76-115
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ROOTS: Growth Stimulants
Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago
One of the most common root-promoting substances is indole acetic acid, but it is used mainly to stimulate rooting of cuttings. A62-1009
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ROOTS: In Flasks
Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago
They grow above the medium where there is not enough oxygen getting into the flask. A79-455
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ROOTS: Indicators of Good Culture
Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago
For paphiopedilums look at the roots, not at the leaves to judge condition; knock the plants out of their pots and inspect the root tips and if they are lacking, something is wrong with the culture...
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ROOTS: Loss, Sudden and Excessive
Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago
Watering with water containing highly concentrated sulfur could cause a buildup; repot, even if out of season; use rain-water. A71-345
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ROOTS: Nutrient Absorbing Parts
Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago
Only the tips of the aerial roots absorb nutrients; the velamen is relatively impervious; roots inside pots however attach themselves by means of root hairs capable of absorbing. A64-693
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FERTILIZERS: Organic or Inorganic
Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago
Bacterial activity is low at 50 deg.F. (10 deg.C.) so it is better to use inorganic types of fertilizer in cold weather;use an organic in warmer temperatures. AU73-185Both can be used; liquid organ...
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