Allow the seeds to soak until the water cools to room temperature. B: Sweet and juicy. Methods of dispersal include sticky or barbed seeds that cling to passing animals and those embedded in tasty fruits. 1. Answer for question: Your name: Answers. Coconut, palm, mangroves, water lily, water mint, are a few examples of plants whose seed are dispersed by the water. Answered Would you sow the seeds which float on water 2 Different liquids are used because each has a different density. G. GoinGreen09 Member. First I placed the seeds in a cup filled with water combined with a nourishing substance designed for seeds (I got it from a flower shop). These seeds came from my garden rather than a commercial package, so I was really concerned when they ALL floated when I poured the hot water over them. I put a handful of them in a bowl and added water. Sep 30, 2009 #5 Well I guess I'll find out . Log in. Seeds that sink to the bottom like a botanical cannonball are probably healthy and should be germinated. I wanted to make sprouted green grams. Dear friend Yes there are seeds that float on water. Such seeds usually develop a floating ability in the form of spongy or fibrous outer coat as in Coconut. I'm planning to sow some spinach. A: Can float on water . Similarly, willow and silver birches produce lightweight fruit that can float on water. With broad, thick, glossy, ovate leaves, water hyacinth may rise above the surface of the water as much as 1 meter in height. Seeds dispersed by water are contained in light and buoyant fruit, giving them the ability to float. Also notice on page 832, table 7 shows the different flotation liquids used to sort bad seed, depending on which pine species is in question. What are the characteristic of the seeds dispersed by man and animals? Hello. The coconut fruits have a fibrous outer coat which enables them to float in water and carried away by flowing water to far off places. Water lily seeds, coconut seeds, and mangrove seeds can float on the water because of their light weight. These will want to float no matter what you do, so use the water float test for larger sized seeds and use the paper towel germination method for mini size seeds. Q. Design Challenge The engineering challenge will be to design three different seeds and test out their abilities. This is because the damaged seeds are lighter and healthy seeds are heavier. At the same time, the healthy seeds will settle down at the bottom. Hundreds of plants, from weeds to trees, release seeds packaged like parachutes, gliders or helicopters. i have a few in water now that are floating and have their little root coming out.. also i dont think this is true as for the fact many exotic seeds have to float or would never get to land or grow any where as would fall in the ocean. Some seeds fly in the air, some float in the water. Seeds that remain buoyant on the surface are more than likely of poor quality and are to be discarded. I wrap the seed in a paper towel then put the seed in a glass of water.The paper towel will sink and take the seed with it,and hold the seed underwater,rather than waiting for the seed to sink on it's own.After a day or so,the seed will stay under water on it's own.I have had 100% success this way,never had one that wouldn't crack this way. What does it mean when seeds float on water? The ability of the seeds to float in still and turbid water. 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