what factors affect plant growth?
825982
there are tons of factors affecting plant growth. one of them is the kind of soil for the plant to grow. some plants need a specific type of soil in order to grow properly. another factor is the sunlight and food it gets. it needs the propwer nourishment for the palnt to fluorish. next is the nutrients that a plant need. some may need medicines to help them grow better.
530326
Try illuminating a growing plant (¿beans?) with different wavelengths (a simple set of filters -yellow, red and blue- will do) in black boxes. \nMeasure the length of the shoots under different light colors with time. \nWhat you should see: Blue should give the highest growth rate, due to the fact that the maximum absorption of the plants pigments falls on those wavelengths.
184028
Not all plants have roots. The ones that do are the vascular plants which need to take in nutrients passively by means of capillary action and concentration gradients. The plants need their roots to reach down far enough into the vadose zone to get water during times of the year when there isn't much rain and the water table is dropping.\n\nAs already mentioned, roots also stabilize the plant to allow it to grow tall and get sunlight. In many places, competition for sunlight is intense so plants have to grow tall and hold themselves up. Thus, the need for roots.
7747
many plants tend to be healtheir and grow faster and produce more using hydroponic means.\n\nHowever not all plants can be adapted to such means.\n\nSee the sources below for more information.
360203
Every one is right above in a way, basically the plant requires sunlight to convert the water and minerals it gets from the soil to food which then will create more cells for it to grow.\n\nWithout sunlight the growth is slower as the food is not created to be sufficient for growth..........\n\nSo plants grow faster in sunlight......
158418
There have been several experiments to see if this was the case.  The first one stated that classical music helped plants grow much better then other forms of music.  However, more experiments since then have shown that there is no link to plant growth.
25254
Yes - higher and lower pH's and different mineral contents affect plants. The safest bet would be to get the plant in the right conditions, and then water with the purest water available, preferably distilled.
126836
This is a somewhat complicated question. The biggest factor of course, is the angle of the earth's rotational axis to the sun's rays at a particular time of the year, or some location in the orbit. The direction of the earth's rotational axis is not constant, because of precession, nutation and the Chandler Wobble, but these are not a huge influence. \n\nAnother factor is the distance from the earth to the sun, since the earth follows an elliptical orbit with one foci at the barycenter of the system, which can be a considerable distance from the Sun's center of mass. \n\nThe sun's solar constant, or solar output, can also vary considerably, since it has its own cycle of 11.5 years between flips of its magnetic field polarity, and appearance of sunspots accompanied by an increase in solar output (including solar wind). \n\nThe albedo of the earth changes because of the snow cover that varies seasonally. This is another complicating factor in seasonal temperature. \n\nThe growing cycle of plants can change the volume of carbon dioxide in the atmosphere on a seasonal basis, changing greenhouse forcing with a seasonal period, as well as the well-known secular trend in carbon dioxide concentrations that appear to be due to anthropogenic influences. \n\nThe appearance of a zone of ozone depletion near the poles on a seasonal basis means that ultraviolet radiation is introduced lower into the air column than would otherwise be true, with many complicated effects. The ozone itself is a greenhouse gas, so its depletion reduces the trapping of infrared radiation at certain times of the year. \n\nThe earth's climate system is a very complicated nonlinear system, and all of these forcings and more can produce complex effects. To cover the forcing factors and the nonlinear behaviors would require a very extensive study, far beyond the scope of this web site.
135919
"The Effects of Electricity on the Growth of Plants"\n\n\nWe had that topic last year.
929403
Hint - \n\nBiotic factors = living things, eg animals & plants\n\nAbiotic factors = non living things, like climate\n\nPick an ecosystem - like a forrest, or a lake, and a examine the climate and how it affects the system.\n\n(How heat controls the vegitiation growth in a desert, how the animals live in that environment)
82715
Anything with plants would be easy to do.  You can study just about anything... photosynthesis, plant hormones, genetics.  For example, you could design an experiment to determine which color of light will grow the tallest plant.
443721
it depends on the species, the soil condition, the amount of sunlight and the temp and wind or lack of.
322754
i would assume that water would work best since a plant doesnt need any other ingredients excpet for the water to grow, other things that might affect the way a plant grows is the amount of sunlight and water it recieves.  This is just my guess from what i have learned in Biology.
51996
I thought that plants didnt really grow towards the sun, its more that the growth is slowed in the cells due to the presence of excess plant hormone Auxin which is produced in sunlight causing them to grow faster on the "dark"side resulting in the appearence of them "growing" towards the sun (phototropism)
562846
if a plant is in a windy area, evaporation happens faster. Or in not too bright of sun, photosynthesis happens faster.  Also, if it's well watered, the roots suck more in and push it through the plant.  \n\nThis probably won't help at all, since I have no idea of what you're really talking about, but someone once told me that they liked nothing more than attempted BS.
33767
Hi Amir, three factors that affect your growth rate are as follows :\n\n(1) Your Genes\n(2) Your Pituitary Gland\n(3) Your Nutrition\n\nThe Pituitary gland sits as the bottom of the middle of your brain. Its secrets various harmones, one of them including the growth harmone. Growth hormone is the key factor that controls how tall you grow to be, and the amount of it that gets produced can vary from year to year and even month to month as you grow.\n\nNutrition can help, in the sense that undernourishment can cause growth to go more slowly. Eat well-balanced meals, with protein, vegetables, and all the vitamins and minerals you need.\n\nYou certainly can't control your genes, but with a well balanced diet, you centainly can suppliment the rate of increase. The only limiting factor is your age. By 19 years, the growth of an average person stops. There are medicines available in the market, but I am certainly not in favour of using those. In case you want to , consult your doctor before using those.\n\nJust a note:\nScientists have cloned the gene for human growth hormone, and so the purified factor is now available for doctors to use. But they only use it in special medical cases where severely low levels of growth hormone can cause problems. \n\nFor a detailed explaination of how to increase your height, check out the following articles :\n\nhttp://answers.google.com/answers/threadview?id=96896\nhttp://www.teenhealthfx.com/answers/Sports/15469.html
380037
They are things that plants need in order to grow.