Category: Orchid Doctor

COLOR BREAK: From the Jungle

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Aphid-transmitted virus has been observed in cattleyas imported from tropical America. OIE86Sept-16 Read More

COLOR BREAK: Virus Induced in Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cymbidium mosaic virus does not cause color-breaking; tobacco mosaic virus orchid strain induces it; illus. of infected flowers; diagrammatic plant with locations of virus. A70-395; BU57; OD71-199;... Read More

COLORATION OF PLANTS: As Indicative of Flower Color

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Crosses made to produce red or dark off-spring produce plants indicative of the color at the seedling stage and can be culled or selected by the experienced grower. OA79-87 Read More

COLORS IN FLOWERING: Judging of Hues

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The American Orchid Society and the American Horticulture Council adopted the Nickerson Color Fan (Maxima Chroma -- 40 Hues) for color descriptions in awards, etc. A58-108 Read More

COLORS IN FLOWERING: Treatment with Sunlight

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago As buds emerge, reds, browns, dark pinks and strong yellows deepen and strengthen under strong sunlight; whites, pastels should be shaded and greens heavily so; applies to cymbidiums mostly. OR77-348 Read More

COLORS OF FLOWERS: "Art Shades" Meaning

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Usually anything that has unusual colors or combination of colors; in cattleyas it means anything almost, not plain purple or white. A84-473 Read More

COLORS OF FLOWERS: Analysis

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For details on genetic controls, chemistry, strategies in breeding for red and other colors, plus light-reflecting epidermal jewels and "hairs"; light quality and judging flowers by it, also, color... Read More

COLORS OF FLOWERS: Describing of Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Problems of terminology and description in writing about colors; the variability of pigments and their value by consensus of opinion; genetics in albas, self-colors, concolors, peloric flowers and ... Read More

COLORS OF FLOWERS: Genetic and Cultural Interactions

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Chlorophyll, flavenoids and carotenoids are the different pigments mixed in different proportions, to provide flower colors and they are affected by factors such as light intensity, temperature, ty... Read More

ACID OR ALKALINE: Changing the Values

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 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