The Orchid Doctor Articles under the Heading Tetraploids

Tetraploids Comments
TETRAPLOIDS: Chance, in Cymbidiums A prolific source of these has been through the mass tissue culture process of recent years which has produced many sports. A78-1022; thousands of them are a complete failure as parents. AU79-139 0
TETRAPLOIDS: Converted, in Cymbidiums In 1966 Donald Wimber presented a paper on the conversion of diploids into tetraploids by use of colchicine; many plants are now available. A78-1022; refer to AU80-109+They never revert to the diploid. OA75-214 0
TETRAPLOIDS: Cymbidiums A comparison with diploids: the tetraploid flower is bigger, the petals and sepals wider, so is the column; the shape is improved; the tissue of all parts is thicker and color is thereby intensified; better reflection of light results from heavier substance; spikes and stems are heavier and stronger; flowers have longer life on or off the stem, with or without water; they suffer less damage from handling and shipping. OA78-23 0
TETRAPLOIDS: In Cymbidiums "4n's" have advantages and disadvantages for the orchid world; the colchicine-converted ones have caused a lot of confusion in the orchid world; refer to OR81-169They are the heaviest producers of long spikes of large blooms on quick-growing strong plants; flowers become thicker in tissue, with wider petals including lip and column; an illusion of greater size; racemes shorter and fatter cause a less attractive arrangement of flowers on them; fewer flowers per spike. OA79-8 0
TETRAPLOIDS: Meaning A clone in which the chromosome count is four times the haploid or standard number; generally indicated by 4n. AU78-47 0

New Topics

  1. Pam Alexander asked question How to repot a Mattie Shave in category General Discussion
  2. Rae Walker asked question Name help in category General Discussion
  3. John Small asked question Schomburgkia, species or hybrid in category General Discussion
  4. Robert H. Findlay asked question Help with ID of this Eria sp. in category General Discussion
  5. Osura Mindula Gunasena asked question Help to Identify the Id of this Vanda in category General Discussion

New Comments

  1. Carol Holdren commented on topic "How to repot a Mattie Shave" by Pam Alexander
  2. Frank Cambas commented on member plant Zns. Cynosure var. Blue birds by Ben MG
  3. Robert H. Findlay commented on topic "Lady Bug or dangerous bug" by John Small
  4. Robert H. Findlay commented on topic "Help with ID of this Eria sp." by Robert H. Findlay
  5. Carol Holdren commented on topic "Name help" by Rae Walker
  6. Carol Holdren commented on member plant Dtps. Younghome Little Spirit by Heather A
  7. Sara D commented on member plant Den. Green Mist by Sara D
  8. Sara D commented on member plant Phal. bellina var. Coerulea by Sara D
  9. Sara D commented on member plant Pot. Marie Yellow Bird var. Love Love by Sara D
  10. Carol Holdren commented on topic "Help to Identify the Id of this Vanda" by Osura Mindula Gunasena