In our previous piece, we discussed how to select the best phalaenopsis orchids for pollination.
Today, we offer eHow’s explanation for how to do pollination by hand.
- Place a toothpick under the pointy piece of the anther cap. The antler cap will pop off like a lid if you gently pull it up. The pollina are two spherical yellow blobs that are attached to the toothpick. The pollina may not come out easily at times, and you will have to remove them from the anther cap. Place the cap in such a way that the pollina are exposed, and use the toothpick to press the thin membrane that protrudes from it. The toothpick will stick to the membrane. Remove the pollina from the anther cap with the toothpick.
- The next step is to locate the stigma. It’s a gleaming hole that sits right beneath the anther cap. At the spot where you used the toothpick to remove the anther cap, you’ll notice two small fang-like protrusion. Over the stigma, these projections stand out.
- After you’ve found the stigma, push the pollina into it with the toothpick. The pollina separates from the filament and enters the stigma.
- Return the phalaenopsis orchid to its original location for cultivation. Before sending the seed pod to a laboratory for flasking, wait six to eight months for it to develop. Remove all flower spikes that grow on the orchid while the seed pod is ripening so that the pod does not lose energy.
- You must pollinate your phalaenopsis orchid with pollina from a different type of phalaenopsis orchid if you want to hybridize or cross-breed it.
Find out more about the fascinating Phalaenopsis orchids that have resulted from hybridization.
Can you pollinate phalaenopsis?
After you’ve cultivated healthy, year-round blooming phalaenopsis orchids, you might wish to take your pastime to the next level by pollinating them. When pollen, or pollina, adheres to the stigma and enters the ovule for fertilization, it is said to be pollinated. A seed pod will grow behind the blossom as a result of this. Many gardeners remove the seed pods just before they are totally ripe and send them to laboratories for flasking since germination of orchid seeds is difficult.
Here is a guide on how to pollinate phalaenopsis orchids:
- The first step is to select a flowering phalaenopsis orchid that has been developing steadily for a while. Choose one that has recently been repotted, as you won’t be able to repot it once the seed pod has developed.
- Select a flower with completely formed colors and waxy-looking petals that has been in bloom for a few days.
- The next step is to find the orchid’s major reproductive organ, the column. This short tubular extension is found in the flower’s center, between the two largest petals, and right above the lipthe section of the flower with hook-like tendrils.
- Look find the anther cap after you’ve discovered the column. It’s at the end of the column, with a somewhat pointed piece pointing away from the column and toward the lip.
In our next post, we’ll continue our explanation of phalaenopsis orchid pollination. In our orchid care forums, you may seek guidance from our support team if you have any questions concerning phalaenopsis orchids.
When should I pollinate my orchid?
The Phalaenopsis moth orchid is a lovely and well-liked houseplant. To effectively care for it, you must understand how to pollinate it.
You might wish to try pollinating a healthy phalaenopsis orchid that blooms year after year. When pollen binds to the stigma and penetrates the ovule for fertilization, this occurs. The seed pod will form behind the blossom as a result of this.
It’s important to understand that growing orchid seeds is a challenging task, so this is a more sophisticated gardening approach. Many plant growers choose to harvest seed pods before they are totally mature and send them to labs for flasking before they are fully ripe.
It’s critical to prepare the work space before beginning the pollination process. Everything should be well-organized, spotless, and ready to use. It’s preferable to work in a bright, well-lit environment where you can see what you’re doing. Select a workspace that is near a window or a lamp. If you want to use artificial light, use a daylight lamp with a non-heating fluorescent bulb.
It’s advisable to cover the work surface with a sheet or table cloth to keep it clean. Choose a white or light-colored fabric to make it easier to locate the pollinia if they fall.
Can you pollinate an orchid with itself?
Unlike most flowers, which transfer their pollen to other plants, the new orchid is very exclusive and only mates with other orchids. In terms of flowers, self-pollination was likewise successful, yielding fruit around half of the time.
What does pollinating an orchid do?
The act of fertilization in which pollen from one flower comes into touch with its own stigma or the stigma of another flower is referred to as pollination. Flowers that have been pollinated will produce seeds, which can subsequently be planted to produce additional plants. The cultivation of new plant life from seeds or other ways is referred to as propagation. Orchids, like many other flowering plants, are pollinated and propagated in the same way. The procedure necessitates some knowledge and a few fundamental materials.
What happens if you pollinate an orchid?
A pollen tube will emerge and grow if pollination is successful, and the ovary of the flower will swell and finally create a seed capsule filled with hundreds of thousands to millions of seeds (Roberts and Dixon 2008). Seeds are discharged and spread by the wind once the seed capsule matures, until they come into contact with a substrate (the surface on which the plant grows) for germination. Orchid seeds, on the other hand, lack endosperm, the nutritious component that supports embryo growth and seed germination. As a result, orchid seeds must form a relationship with mychorrizal fungus, which aid in the seed’s absorption of water and nutrients as well as the conversion of cellulose and other complex molecules in the substrate into simple sugars required by the orchid. As a result, all Orchidaceae species produce seeds that rely on mycorrhizal fungi to complete their life cycle in the wild (Rasmussen 1995).
Orchids have a wide range of mycorrhizal connections. Epiphytes (plants that are harmlessly connected to other plants) may only utilize mycorrhizal fungi during seed germination, with adults relying on nutrition intake from rainfall and runoff, whereas terrestrials (plants that live on the ground) may have a high level of mycorrhizal reliance (Roberts and Dixon 2008). A mycorrhizal fungus must be present in the area where the wind-dispersed seed lands for an epiphytic orchid to germinate.
What is orchid seed?
Seeds come in a variety of sizes and forms. The seed (actually a single-seeded stone) of the Seychelles nut or double coconut (Lodoicea maldivica, Arecaceae) maintains the unbeaten record for the world’s largest seed, famed for both its volume and suggestive shape. It can weigh up to 18 kg and resembles something that gave sailors in the Middle Ages all kinds of “seedy” thoughts while bobbing in the waves of the Indian Ocean.
Seeds like dust
The seeds of orchids are on the other end of the range. Orchids are the biggest blooming plant family, with over 26,000 species worldwide, and are known for their beautiful and interesting blossoms. They also have the smallest seeds of any blooming plants, according to the world record. A normal orchid seed is only a particle of dust in size.
To give you an idea of the scale, a single capsule of the tropical American orchid Cycnoches chlorochilon yields about four million seeds, while one gram of seeds from the Southeast Asian species Aerides odorata yields 3.4 million. Aerides odorata contains the smallest seeds I’ve ever seen at Kew’s Millennium Seed Bank, measuring roughly 0.2 mm in length. There are orchids with even tiny seeds, according to the literature. Anoectochilus imitans, a New Caledonian species, is reported to be the tiniest of all, measuring only 0.05 mm in length. The seeds of the lopsided star orchid (Epidendrum secundum) are said to be the longest of any orchid, measuring 6 mm in length.
The embryo and endosperm are sacrificed in order to reduce seed size and weight, with the latter failing to develop in orchids. Orchid seeds have a spindle-shaped, wafer-thin seed coat that encases a very small and simple embryo in the shape of a spherical cluster of cells at the moment of dissemination. The seed coat (also known as testa) is only one cell layer thick and creates a bubble around the embryo, an obvious adaption to wind distribution.
With a little help from their friends
Most orchid seeds, especially terrestrial ones, are unable to germinate on their own because they lack a food reserve in the form of an endosperm or a big embryo. They must first form a mycorrhizal association with a fungus that aids in the feeding of the seedling. Some orchids can associate with a wide variety of fungi, while others will only take a single type of fungus into their life (or rather roots). Few orchids, such as some Disa species from South Africa, require no fungus at all to germinate, making them a notable exception among terrestrial orchids.
Orchids most likely produce a large number of small seeds due to their reliance on specific fungal partners. Orchid seeds are well-suited to wind distribution due to their small size, low weight, and balloon-testa. Their goal, though, is to avoid traveling vast distances. Using the wind to disperse a large number of seeds only increases the possibilities that at least some of them will end up in a location where they will meet their specific fungal companion, without which they will not germinate.
Long-distance dispersal would mean that the same number of seed is dispersed over a longer range, potentially lowering the chances of finding a compatible host in an appropriate position. This argument is supported by the fact that many orchid species are endemics with extremely limited distributions. This does not rule out the possibility of their seeds traveling large distances. Orchids have made it to remote islands far from the mainland. They were among the first settlers on the Krakatoa islets after the devastating volcanic explosion of August 27, 1883, as well-documented.
Why so small?
It seems wasteful to throw away millions of seeds, the majority of which will go to waste. However, wasters are punished by nature, and given the orchids’ success, their seed dissemination mechanism must be working. Producing a large number of extremely little seeds with no food reserve (except from some oil droplets and starch grains in the embryo) is really very energy efficient and does not consume much of a plant’s energy.
The survival advantages of mass-producing millions of small seeds definitely exceed the expenses. Orchids aren’t the only ones who demonstrate this. The similar technique is used by other groups, such as the Orobanchaceae (broomrape family). They have a similar difficulty to orchids as parasites: they must find the suitable host partner for their seeds to germinate and mature into a new plant.
Vanilla ice cream and seed morphology
Here’s a little morphological nugget for you, because we’re talking orchids and most of us like ice cream. When you treat yourself to some high-quality vanilla ice cream, you’ll notice that the little black specks are truly real vanilla seeds (in low-cost ice cream, they could be phony!). The fermenting fruits (‘pods’) of the vanilla orchid are used to make vanilla (Vanilla planifolia). That’s how all those seeds got into your ice cream in the first place. Vanilla seeds, on the other hand, aren’t nearly as interesting as those of other orchids. They’re basically small black discs with a plain, uninteresting appearance. Their seeds are definitely not wind-dispersed because they lack the translucent balloon-like seed covering that other orchids have.
In fact, vanilla orchid seed distribution strategies are still a mystery. When ripe, the fruits of many Vanilla species, including V. planifolia, open to reveal their small seeds, which are coated in an extraordinarily sticky covering of oil. The oil could act as a glue to keep the seeds attached to the visiting creatures, which could be insects or vertebrates. Euglossine bees, for example, have been reported to be drawn to the scent of vanilla fruits and operate as seed collectors and potential dispersers.
Orchid seed research at the Millennium Seed Bank
At this point, I asked my colleague, Tim Marks, to tell us about his orchid seed study at the Millennium Seed Bank, and he responded as follows:
‘Orchid seeds are naturally dry when released and appear to be desiccation resilient because they are wind-dispersed. The latter is required for us to be able to store them under extremely dry and cold (freezing!) conditions, as we do with other Millennium Seed Bank seeds.
‘Unfortunately, orchid seeds have a bad reputation for being short-lived when stored in seed banks. Our research is focused on determining why this is the case and how we might help them live longer.
‘Testing the relationship between temperature and moisture content on viability and germination is a basic notion in knowing their individual storage requirements.’ It is feasible to establish species-specific requirements by conducting long-term storage tests at temperatures ranging from -196°C (liquid nitrogen) to +20°C (ambient) and a variety of moisture levels.
‘Some orchid species are resistant to a variety of circumstances, while others do better in liquid nitrogen storage.’ However, in order to avoid this happening across all species, we’re looking into a variety of seed traits that can influence this response. One of these is the seed’s lipid content, which has physical qualities that could impact seed physiology as it goes through the freeze-thaw cycles that stored seeds go through. Thermal fingerprints can be created to represent the phase transitions between liquid and solid states that these plants go through, with the goal of constructing a prediction model to explain the observed responses to storage and germination.’
Can orchids cross breed?
Orchid hybrid blooms are both simple and complex to create. The plants themselves (in many cases) readily cross with other orchid species and genera, making it exceptionally simple to come up with novel and exciting combinations. Regardless of whether you’re hybridizing or not, growing orchids from seed is a challenging and specialized operation. Orchid seeds are extremely small, almost microscopic, and must be cultivated in sterile flasks on sterile media. With its rows of sealed flasks loaded with tiny seedlings, an orchid seed-raising facility resembles a pharmaceutical lab more than a regular greenhouse.
What type of pollination Do orchids need in order to propagate?
Orchids, unlike many other flowering plants, are not pollinated by the wind or water. They are pollinated primarily by animals, primarily insects, with the exception of self-pollinating species, particularly certain terrestrial species.
How do you flask orchids?
De-flasking is a tough procedure, but it’s well worth it when you see your small plants flourish. When the weather starts to warm up and the’spring-growth’ period begins, spring is the best time to de-flask. Examine your fruit trees to observe when they start blossoming and producing leaves. Late summer to early autumn is the best time to defrosk because they will have ample time to ‘harden-off’ before the chills arrive.
Once you’ve received your flasks, set them aside for a few weeks in a location where they’ll get plenty of light but not direct sunshine. Two suitable locations are a south-facing windowsill or a sheltered greenhouse. This is done to encourage the plants to begin photosynthesis. On the inside of the jar, you’ll notice a lot of condensation developing. Because the plants have been photosynthesising, they will be able to develop and feed on their own rather than relying on the sugar in the agar after they are potted. Unscrew the lid and place it loosely on top of the jar a day or two before you’re ready to de-flask your plants. This will begin the process of acclimating the plants to their new environment.
To begin, combine a bowl of lukewarm water with the fungicide (following packet directions). Remove the plants from the flask with care, being careful not to injure the roots. Wash the plants in the fungicide solution, washing away any agar leftovers from the roots and carefully separating the plants. Drain the plants and let them air dry for 15-30 minutes on newspaper or paper towels. Plant them all in a pot that is roughly half the size of the flask they came from. Plants should be spaced approximately 1cm apart. Use either rehydrated long-strand sphagnum moss or soaked overnight number 2 (5-10mm) orchid bark. Fill the pot with a plant label with the plant’s name on one side and the de-flasking date on the other. It’s best to use an HB pencil for this because it’s waterproof and won’t fade.
Place the pot in a covered part of the greenhouse, where it will get good light but not direct sunshine, as well as good air movement but not cold. The plants will require shelter from the cold if you want to de-flask before winter. Allow the temperature to stay above 5°C overnight. Place the container into a larger zip-lock plastic bag once it’s been planted. Close the bag, leaving around 2-3cm unzipped. This aids in the creation of a microclimate for the newborn plants. Growing them indoors over the winter would be an alternative. Indoors, the plastic bag can still be used to create a microclimate.
The plants will need to be kept in this first pot for 3-6 months. Water them once or twice a week, and feed them a dilute solution of high nitrogen fertilizer like Growing Orchid Tucker on alternating weeks. Allow the mixture (bark or moss) to be uniformly wet but not saturated. Watering frequency will vary based on the temperature and rate of evaporation. Make sure there isn’t any water in the bottom of the pot because the roots need to breathe. If you notice any brown leaf tips or patches on the leaves, spray them with a fungal solution.
After the plants have grown to almost twice their original size, they can be transplanted into separate pots. For smaller plants, we use 5-7cm square pots, and for larger plants, we use 10cm square or round pots. Plant them in either a number 2 or 3 bark at this point. Maintain the same watering and feeding schedule, but boost the fertilizer strength to full strength. Also, when needed, maintain the fungicide treatment. If the weather isn’t too chilly, place the plants into their ultimate growing environment after a month or so, depending on the orchid’s needs. On the back of each fresh pot, a label with the plant’s name and the date of potting will be required.
Rain serves as a source of water for outside plants. If there is a lot of rain, cut back on the watering. Increase the frequency of watering if the weather is hot and evaporation is excessive. Similarly, cooler temperatures necessitate less irrigation. Keep an eye on the plants and move them to a larger pot as soon as they outgrow their current one. On the other side of the label, write the new potting date. You’ll be able to quickly keep track of when you last potted that plant. In 2 1/2 to 4 years, depending on the variety of orchid, you should have a near flowering or flowering sized plant in a 15cm diameter container. Start applying Flowering Orchid Tucker as directed at this point to aid blossom initiation.
How do I breed orchids?
Orchids, like other plants, can reproduce in two ways: sexually through seed and asexually by vegetative growth. Vegetative propagation is a popular method for beginners to grow their orchid collection.