Seeing a small bulge emerging from the body of our orchid plants may have often we experience. But it would be very happy if the little bulge had grown into a bunch of flowers with a prospective bud that lined up along the bunches of flowers. After day after day passed, the candidate grows bigger and arrived 1-2 pieces of candidates buds yellow and fall …. !! although some other candidates succeeded in maturity and bloom perfectly, but in the heart there is a sense of curiosity, why it happens ….
There are many factors that can cause the fall of the candidate of flowers before bloom. Here I sari from the discussion of friends in the orchid mailing list about the loss of orchid flowers:
The first flowers that arise from the orchid plants resulting from tissue culture in general experience kerontokan some prospective flowers, other than that sometimes the length of the bunch was short and bring a little bud. This is because the new plant first entered the generative phase of its life cycle, so the metabolism of hormones and the accumulation of atp (energy) is still not perfect.
Less light can cause hair loss
When the light is too low then the rate of photosynthesis is also low, so the food reserves obtained only slightly. When plants are accelerated by fertilization with formulations for flowering, the plant physiologically stimulated to enter at a stage where the generative phase is more dominant. As a result with the existing food reserves, the orchid persisted to create interest. Finally, once the bunches are formed, it is usually a short flower bunch, and many would-be flowers are falling. This happens because the candidates of flowers do not get enough food and energy supplies. Candidates of interest are also living tissues that require energy and cell material.
Drought due to high temperature is also one of the reasons why the candidate flower fall
Why ?? because when the temperature is high then the evaporation of water was also high. Water reserves (moisture) in the minimal media will quickly disappear due to evaporation. Evaporation not only occurs in the media (evaporation) but also occurs on the surface of the orchid plant itself (transpiration). When the evaporation of water continues, then the plant will lose a lot of water in the cell. The organ that first suffers from the adverse effects of decreased moisture in the cells is the young (meristem) tissue such as the candidate of flowers, so that the cells of the buds will shrink and the tissue appears to wrinkle and eventually fall off.
Sudden temperature changes.
Sudden drastic changes in temperature can cause sudden physiological changes such as decreased enzymatic activity in the plant body. Enzyme activity is strongly influenced by temperature. The fall of this enzymatic activity will cause the effect of “stress” on orchid plants so that various symptoms such as leaves yellowing and falling out, prospective flower falls etc.. The optimal temperature level for enzyme activity varies greatly depending on the species. In addition, for highland orchids in the state of having a prospective bud, then suddenly brought to the lowlands, the evaporation of water in the body of the plant will drastically increase, so that sensitive plant organs (prospective bud, root tip etc.) will shrink and wilt. Be careful for orchids that have buds and be taken long and long trips using ac-cars or hot and stuffy spaces, it is feared when out of the car, the plant will be “shocked” by sudden changes in temperature.
Concentration of fertilizer leaves are too thick
Concentrations of fertilizers that are too concentrated in addition to adversely affect other plant organs, the candidate buds bungapun also very sensitive to damage. If the liquid fertilizer leaves are too concentrated on the candidate of flowers, the concentrated liquid will easily penetrate the cell wall because the candidate flowers are young tissue whose cell walls are still thin. After penetrating the dindingsel the concentrated liquid will cause uncontrolled osmosis, so that the liquid cells will come out of the cell and there is plasmolisis. The cell membrane will be wrinkled and damaged so that the cell will eventually die. From the outside, there will be draining on the candidate of flowers and then fall out.
Invasion by flies (fly X, still in search of R & D team web.anggrek.org)
most likely a kind of adult insect imago like a fruit fly or a butter that lays its eggs to the florets so that the larvae will eat the florets, or the fly X has been sucking the fluid cells from the prospective bud.
Attack of elephant lice.
An elephant louse has a habit of “tasting” the young tissue tissue for her fluid cell suction. In addition, adult elephant lice also perform the same rituals to determine the right position for the beloved baby. After getting the right position he will drill that part to lay his eggs. The young flower part of the flower is