zaadtabel

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zaadtabel
« Gepost op: juli 07, 2010, 12:58:10 pm »
weet er iemand een website voor rijpingsduur van zaaddozen :?:

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Offline Phal

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Re: zaadtabel
« Reactie #1 Gepost op: juli 09, 2010, 09:53:10 pm »
Probeer eens via : [size=150]Vereniging Orchideeën Vermeerdering[/size]

http://www.orchideeenzaaien.nl/index.html

Daar staan links, ondermeer deze leek me interessant :

  The Bakers maintain a webpage, and also maintain a database of capsule maturation times.

Maar als je die opent :

   Orchid Pollination and Seed Germination Database
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   Temporarily unavailable due to remodeling
   This portion of the site will return soon with better tools for searching through the thousands of entries.


Dus voorlopig is deze database niet te openen. Wellicht later weer wel. Maar bij die links staan ook enkele werkgroepen, waar je jezelf moet aanmelden. Wellicht kan je daar eens proberen.
Groetjes,
Patrick - Phal

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Offline Phal

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Re: zaadtabel
« Reactie #2 Gepost op: juli 12, 2010, 08:29:56 pm »
Iets wat ik vond op een Amerikaans forum :

Harvesting Times for Seed Capsules
____________________________________________________________
Cattleya Species and Hybrids
 Unifoliate Cattleya ............................................ 5 to 6 months
 Bifoliate Cattleya..............................................4 to 5 months
 Slc. Pot. and Other Unusual Intergenerics...................4 to 5 months
 Epicattleya, Cattleytonia and Their Hybrids.................4 to 5 months
 Encyclia..........................................................4 to 5 months
 Reed Stem Epidendrums.......................................3 months
 Brassavola (terete).............................................4 to 5 months
 Rhyncholaelia....................................................5 to 6 months
 Laelia and Schomburgkia......................................4 to 5 months
 Broughtonia.....................................................2 to 3 months
____________________________________________________________
Oncidium Species and Hybrids
Mule-ear Oncidiums (luridum, lanceanum, splendidum)....6 to 8 months
Miniature Oncidiums (Tolumnia) .............................2 months
Oncidium triquetrum........................................... 5 months
Oncidium sphacelatum and Related Species................. 4 months
Oncidium papilio and Related Species........................ 100 days
Miltonia and Odontoglossum ...................................4 months
____________________________________________________________
Vandaceous Species and Hybrids
Vanda, Ascocentrum and Ascocenda* ........................5 to 7 months
Rhynchostylis, Renanthera, Arachnis .........................5 to 8 months

*After 65 days Vanda and Ascocenda seed capsules may turn slightly yellow but are NOT ready to be planted and should be allowed to remain on the plant the full length of time. If the capsule does not contain viable seed it will usually continue to turn yellow and drop off.
____________________________________________________________
Phalaenopsis Species and Hybrids
Phalaenopsis Large Flowered ..................................4 to 5 months
Phalaenopsis Small Flowered .................................5 to 8 months
____________________________________________________________
Dendrobium Species and Hybrids
Dendrobium phalaenopsis .....................................4 to 5 months
Dendrobium nobile .............................................5 months
Dendrobium pendulous ........................................6 to 7 months
Antelope .........................................................4 to 5 months

Propagation of Orchids Sexual
Sexual propagation of orchids is either by selfing, self fertilization, which transfers the
pollinia from the anther to the stigma of the same flower or sibbing (sibling cross),
cross fertilization (the crossing of two different individuals).

Pollination
Pollination is the transferring of pollinia from the anther to the stigma. This can occur
naturally by bees, flies, birds, butterflies, moths, wasps or mosquitoes. In nature pollinators
visit the flowers to feed or by deceptive mimicry.

Seed Pod
After pollination the sepals, petals and lip fold with 1-3 days and the ovary begins to enlarge.
Enlargement continues until the pod matures. Ovules are not present in the mature flower.
Ovule development is initiated by pollination. Ovules take from 8 to 150 days to develop.

The interval between pollination and fertilization is 8 to 150 days. Usually immediately after
ovule development fertilization occurs. However, complete seed pod development takes longer.

Green Pod Culture
The green pod method of sowing orchid seed is the most common method.
The pod is harvested when the seed is viable but before the capsule splits.

Care of Flask
Flasks must remain sealed or contamination will occur
Store under low light intensity - 80-90% shade screening
Fiberglass cover or in a window
75-80° F optimal
Extremes tolerated for short time (30 - 110° F)
No direct water - low humidity

Removing Plants From Flask
Carefully break flask or remove plants roots first with tweezers or with a wire hook
Wash plants with plain water to remove all agar
Leave clumps together and plant as one - can be separated later-
smaller plants will usually die if separated from clump
Pot large plants individually in 2 or 3" pots,
pot smaller plants in a community pot or in a tray
Use sphagnum or seedling mix good drainage
Water plants thoroughly after planting to clean medium
Then spray pots, medium and plants with a fungicide/bactericide (RD20)
Resume normal watering - once a day or every other day
Fertilize every two weeks
Repeat spraying with fungicide/bactericide every 3-4 weeks (Captan or Dithane)
Groetjes,
Patrick - Phal