The Complete Crossing Orchids

What is the aim of crossing orchids?
The purpose of crossing orchids is (1) to collect two good qualities of two plants. (2) Generate a combination of color, shape, size and number of flowers in want and (3) to obtain plants that are resistant to disease. Various cross there are four, namely monogeneric, bigeneric, trigeneric and tetrageneric.
States that pollination is done by considering the following factors: (i) Selfing conducted if there is no parent plant and other flowering, or when one plant is only one bud or 3 flowers (2 florets intercross, one bud selfing) , (Ii) If in the plant has two flowers there will be a cross inter-cross (between 2 flowers). (Iii) If there are two plants that bloom then pollination carried out-cross, which crosses two flowers of different plants.

Factors affecting the cross are:
1. Selection of healthy stem Yang, Yang characterized WITH Physical appearance Fresh, Green, Grow Tall, strong and sturdy.
2. Diligent flowering.
3. Color Beautiful flowers.
4. Large flower size.
5. Period OR flower stalk of flowers.
6. Interest durable.
7. The shape of flowers.
8. When crossing.
9. Age female flowers.
10. Quality of male flowers as a producer of pollen.

The characteristics of orchids successfully crossed that a few days after the crossing, which has been pollinated flower will wither. Pollination is successful when there is no pest, the fruit will will continue to develop into fruit. No ripe fruit orchids after three months to six months or more, depending on the type of orchid. The ripe fruit will split the fruit characterized the change in color from green to yellowish green.

Generally the result of pollination in P. Serpentilingua be seen in 3-5 days after the transfer pollen do. Pollination is successful, the flower stalk will look fresh and the flowers begin to wilt. Pollination is unsuccessful, then the flower stalks and flowers fall simultaneously. Ovule is situated below the inferior domiciled jewelry flowers and fused with the flower stalk (pedicel). When the fruit development process continues it will be preceded by swelling (swollen) peduncle. Generally, the rapidly growing fruit length between weeks 1 to 5th MSP (Weeks After Pollination), sometimes some are still experiencing the length after week 6.

Weakness in generative propagation on research Cai et al (2011) using Dendrobium loddigesii Rolfe is the low level of germination and rate of germination (germination). The absence of endosperm in the seeds create Dendrobium loddigesii orchid species can only germinate when performing symbiosis with fungi under natural conditions. The original habitat destruction and looting could reduce this type of orchid populations.

Based on the observed data, successfully obtained the final result because of swelling of the ovaries (ovarian) but no visible reaction withered flower. The crossing should be terminated by removing the flower tongue to avoid the insects that pollinate thwart. Interest will be crossed should have such criteria, choose flowers as male flowers that had bloomed 4 days until wilted and select female flowers as 4 days after bloom.

Categories: Biology, Plants