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. David George asked question recently purchased orchid shows unstoppable roots in category General Discussion
  2. katherine mott asked question shorter stem with less vigorous blooms in category Phalaenopsis
  3. Glenda Ratliff started topic need info on yellow bird in category General Discussion
  4. Paula Milano asked question Looking to join an orchid club. in category General Discussion
  5. Jeanne Uzar Hudson asked question Meetings for Advanced Growers in category General Discussion

New Comments

  1. Carol Holdren commented on topic "recently purchased orchid shows unstoppable roots " by David George
  2. Michael Makio commented on orchid V. Beatrice Makio
  3. Carol Holdren commented on topic "shorter stem with less vigorous blooms" by katherine mott
  4. Carol Holdren commented on topic "need info on yellow bird" by Glenda Ratliff
  5. Carol Holdren commented on topic "Looking to join an orchid club." by Paula Milano
  6. Jeanne Uzar Hudson commented on topic "Repotting Large Cattleyas" by Jeanne Uzar Hudson
  7. Jeanne Uzar Hudson commented on member plant Paph. malipoense by Jeanne Uzar Hudson
  8. William Gorski commented on topic "how difficult is it growing from seed" by kevan gregory
  9. Carol Holdren commented on topic "Information " by Carmen Britton
  10. Carol Holdren commented on member plant C. lueddemanniana var. Coerulea, Venosa by Paulo Fiuza