Lupins, too, have a similar system. The side of the seedpod facing the sun dries out more quickly than the side in the shade, causing the pod to buckle and pop open. The seedpods then curl up like animal horns, sending the seeds flying. The seeds are catapulted out at high speed.
How do you spread Lupin seeds?
They can be direct sown in autumn where winters are mild. If starting indoors, scarify seeds by chipping, or soak in water for 24 hours prior to sowing. Sow shallowly, a couple of millimetres (1/8″) deep, and maintain a coolish soil temperature of 12-18°C (55-65°F). Seeds should germinate in 14-60 days.
How is Lupin pollen transferred?
An ingenious system makes sure that lupin is pollinated properly: the weight of a pollinator pushes the petals of the flowers downwards, revealing the stamen and pushing the pollen on the belly of the pollinator and hereby making sure that the pollen gets to the next flower (see also the video).
Which seeds are dispersed by wind?
The seeds of the orchid plant, dandelions, swan plants, cottonwood tree, hornbeam, ash, cattail, puya, willow herb, are all examples of plants whose seed are dispersed by the wind. In this method of seed dispersal, seeds float away from their parent plant.
Do lupins spread?
Lupines are deep rooted and do not spread except through re-seeding. Seeds will not come true to the original variety planted, but will eventually revert to blue-violet and white.
How do blackberry seeds get dispersed?
Every drupelet of a compound fruit contains a seed, and the fruits are very much loved by birds and mammals alike. The main way seeds are spread is through animals eating them, digesting them, and then excreting them.
How do you save and plant Lupin seeds?
SAVING LUPIN SEEDS Allow the seed pods to turn brown then remove them from the plant and open up the pods to get at the seeds. Seeds will be available in July to August time. Store until required in a cool, dry dark place. The seeds will keep for three years or more if stored correctly.
How long do lupins take to grow from seed?
Sow seeds in early to mid-spring. The large seeds have a tough coating, so it is best to nick them with a knife, then soak them in water for 24 hours before sowing. They should germinate in 10–14 days at 10–15°C (50–59°F).
Do pollinators like lupine?
Attracts: Hummingbirds, butterflies, bumblebees, mason bees, miner bees, carpenter bees. The larvae of the Karner Blue Butterfly feed off Lupine foliage. Lupines bloom early in the season, so overwintering pollinators are fond of it.
Do lupins produce nectar?
Lupins do not produce nectar, so ample nectar should be provided in surroundings. Increasing lupin cultivation may contribute to bringing back endangered bumblebees.
Which seeds are scattered by bursting?
By bursting, the seeds of squirting cucumbers (Ecballium elaterium), violets (Viola pedata), and touch-me-not (Mimosa pudica) disperse. When the seeds burst, they travel a long way before coming to rest.
What seeds disperse explosions?
Violets, poisonous squirting cucumbers, and touch-me-nots or Impatiens capensis (not to be confused with these touch-me-nots) have an effective way of dispersing their seeds: They burst! The forceful ejection sends the seeds flying as far away as possible from the original plant.
What can you learn from this simple seed dispersal activity?
This simple seed dispersal activity is a lot of fun and an engaging way to incorporate critical thinking, problem solving, and math as your students learn about seed dispersal and the life cycle of plants. Click here to see the complete plant science unit I use that includes this experiment and lab sheets.
How do you disperse seeds with a balloon?
Place a long sheet of butcher paper (or a plastic table cloth from the dollar store) on the ground. This enables students to see where their seeds fall as they disperse. Stand at one end of the paper holding the balloon outward. Finally, pop the balloon and watch what happens!
How do you find out how seeds are dispersed?
Look at them through a hand lens. Toss them in the air. Blow on them. Put the seeds in a puddle. See if they will stick to your sleeve. Think about where you see seeds and how they got there. Once you have made your observations, research what others have found out about how those particular seeds disperse.
Where did Lupinus nootkatensis originate?
Alien distribution. History of introduction and geographical spread Lupinus nootkatensis was introduced to Europe from North America late in the 18th century. It was grown as an ornamental plant in England in 1795 where it became a popular garden plant (Karlsson 1981, Fremstad and Elven 2004).
