The Orchid Doctor Articles under the Heading Ploidy

Ploidy Comments
PLOIDY: A Basic Genetic Concept Dealing with Chromosome Number Levels Reproductive egg and sperm carry a haploid set of chromosomes; when hybridized they become diploid (2n) or triploid (3n) or tetraploid (4n) pentaploid (5n),etc; more than 2n are called polyploids. A68-20 0
PLOIDY: A Simple Explanation Better known as polyploidy, which see; an explanation of mitosis (prophase, metaphase, anaphase and telophase); chromosomes numbers (pioidy); for details refer to AU87(4)-47 0
PLOIDY: Problems Caused by Chemical Change of Diploids Cells should either double or quadruple their chromosomes; on the variation in results being obtained, especially in cymbidiums; the problems connected;recognition of changed clones; the effects on consumers; refer to OA79-5+ 0

New Topics

  1. Fritz wilke asked question This is the plant in category General Discussion
  2. Fritz wilke asked question What kind is this in category General Discussion
  3. Fritz wilke asked question What kind of orchid is this? in category General Discussion
  4. Robert Stagner asked question cattleya mossiae Willowbrook in category General Discussion
  5. Judith Pariseau asked question Paphiopedilum culture differences in category Paph Alliance

New Comments

  1. Carol Holdren commented on topic " cattleya mossiae Willowbrook" by Robert Stagner
  2. Carol Holdren commented on topic "What kind of orchid is this?" by Fritz wilke
  3. Robert H. Findlay commented on member plant Oncidium Sherry Baby by Luesa Estrada
  4. Judy Bailey commented on topic "Paphiopedilum culture differences " by Judith Pariseau
  5. David Hickman commented on topic "Mystery Orchid" by David Hickman
  6. Carol Holdren commented on topic "Bulbophyllum " by Marc Lefkowitz
  7. Carol Holdren commented on topic "Can a Bealleara re-flower" by Tony Borowiecki
  8. Carol Holdren commented on topic "How to care for my new orchid" by Sylvia Spence
  9. Bodil Bruus commented on member plant Ctt. Mrs. W. N. Elkins var. coerulea by Linda Thorne
  10. Jan E Teitsworth commented on topic "Can anyone identify this orchid?" by Jan E Teitsworth