Category: Orchid Doctor

AMMONIUM NITRATE: As Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Use only 1 round teaspoon in 5 gals. of water. A69-130 Read More

AMMONIUM NITRATE: Nitrogen Source

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Where the only source is from urea, this can be added to a 20-20-20 fertilizer in equal quantity to produce 30-10-10 so the nitrogen is more efficiently utilized; use 1/4 tpg. of 20-20-20 plus 1/4 ... Read More

ANEUPLOIDY: Effect on Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A chromosomal condition which may cause retarded growth and weakness in development. A76-577 Read More

ANEUPLOIDY: Growth

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In paphiopedilums it is short and heavy. A78-999 Polyploids in which the chromosome count is not an even multiple of the haploid number. AU78-47 Polyploids in which the chromosome count is no... Read More

ANGLES: Lizards

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In many southern climes it is considered a valuable pest-control "pet" because these little green or brown animals eat the ants which introduce aphids and scale and virus, into collections. A87-40 Read More

ANGRAECUM VEITCHII: Under Lights

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Flower tips turn brown = likely caused by not enough light; angraecum flowers normally last long. A76-507 Read More

ANGRAECUMS: Minimum Optimums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago 55 degrees F. at night; 50% relative humidity; 2,000 fcs. winter, 4,000 fcs. summer. AU71-135 Read More

ANTHOCYANINS: Flower Colors

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago For an explanation of genetic and cultural interactions refer to A83-1056 Read More

ANTHOCYANINS: Red Pigment

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Usually develops as result of high sunlight, or, "low" temperature, or a "high" sugar content, or a phosphorous "deficiency"; but all are relative to the growing conditions; species and genera diff... Read More

ACID OR ALKALINE: Changing the Values

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Various means can be used: tufa, a limestone form, can be added to paphiopedilums from limestone cliffs; bark composts acidify with age; peatmoss, pine needles, oak leaves in the mix produce acidit... Read More