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CHROMOSOMES: Variation in Numbers

Orchid Doctor Propagation

by Robert M. Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin about 3 years ago.

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A review; change and polyploidy; polyploidy and improvements in plants, other information, refer to OR81-169; OR82-368; OR87-139
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More The Orchid Doctor Articles under the Heading Chromosomes

Chromosomes Comments
CHROMOSOME NUMBERS: Dendrobiums At Kew 62 species recently acquired from Papua-New Guinea; refer to the list, A85-1122; for miscellaneous species, refer to A85-1235 0
CHROMOSOME NUMBERS: For Bulbophyllums 55 species at Kew listed with origin and 2n. A85-190 0
CHROMOSOME NUMBERS: For Phragmipedium Hybrids Diploidy and polyploidy. A83-933 0
CHROMOSOME NUMBERS: For Species and Hybrids For a most comprehensive listing, refer to OBIII-323 0
CHROMOSOME NUMBERS: Importance They are significant for cymbidiums, but not for others such as paphiopedilums, for breeding purposes. OA78-17 0
CHROMOSOMES: Changes in 1987 A review of recent events and efforts to conserve wild orchids; improvements in the face of rapacious exploitation suggested, refer to A88-31 0
CHROMOSOMES: Failure The Convention qualifies as the biggest fraud as applied to plants since Prohibition in the U.S.; it has probably killed more plants than it has saved; originally written for protection of animals, it does not work well for plants as it ignores the more dangerous problem of habitat destruction. OIE87Jy-6 0
CHROMOSOMES: Is it Effective? The greatest threats are Japan, Belgium and Holland which have not signed the treaty; until they ratify it they will remain the worst importers of wild species. OA86-64 0
CHROMOSOMES: Pros and Cons An argument against its policies or provisions and stating the program needs to be re-evaluated; refer to A88-30 0

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  1. Image Carol Holdren commented on member plant Lc. Canariensis by Steven Underwood
  2. Jean-Pierre ECOFFEY commented on topic "Eulophia andamanenis" by James Bixler
  3. Bio Alex Maximiano commented on member plant Paph. Prime Child by Jeanne M Uzar
  4. Rainer Birthelmer commented on member plant Spe. stumpflei by Rainer Birthelmer
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  6. Rainer Birthelmer commented on member plant Muscarella. stumpflei by Rainer Birthelmer
  7. Bio Alex Maximiano commented on member plant C. Chyong Guu Swan var. Ruby Lip by Mary Lane
  8. Bio Alex Maximiano commented on topic "Oncidium cheirophorum" by Jackie Hartter
  9. 92f7c225 2490 4d3b 822c 2f4b8f30d6b8 Mary Lane commented on member plant V. denisoniana var. Orange form by Mary Lane
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