Factors Affecting Plant Growth And Development

Photoperiodism is the effect of the relative lengths of light and dark periods on plant growth. This occurs when photoreceptor proteins e.g phytochromes are produced by plants in response to light intensity or the absence of light. This in effect affects the height of plants. [5]

Plants can absorb a number of different length light waves, although not all of them are equal in power or energy which influences a plants growth. Approximately 80% of light that reaches a leaf is absorbed and depending on its wavelength, may excite chlorophyll pigments (reference text book). Plants absorb both red and purple light waves, however because purple wavelengths are shorter, they contain more energy.

Plants are found everywhere on earth, up high on the ridge and down low in caves and caverns. The types of plants that live in these places depends on many factors. These factors are separated into two different categories, the biotic factors and the abiotic factors. Some of the biotic factors include, predation, competition, and habitat destruction. Plants with limited competition and large amounts of resources will be in a higher abundance than plants with limited resources and higher competition rates will be confined to areas and either out competed or will be the dominant species. Certain plants adapt to these factors and thrive and others don’t do as well. Some of the abiotic factors include, sunlight, water, temperature, and wind. These

Introduction: Photosynthesis can be defined as a solar powered process that removes atmospheric carbon dioxide and transforms it into oxygen and carbohydrates (Harris-Haller 2014). Photosynthesis can be considered to be the most important biochemical process on Earth because it helps plants to grow its roots, leaves, and fruits, and plants serve as autotrophs which are crucial to the food chain on earth. Several factors determine the process of photosynthesis. Light is one these factors and is the main subject of this experiment. The intensity of light is a property of light that is important for photosynthesis to occur. Brighter light causes more light to touch the surface of the plant which increases the rate of photosynthesis (Speer 1997). This is why there is a tendency of higher rates of photosynthesis in climates with a lot of sunlight than areas that primarily do not get as much sunlight. Light wavelength is also a property of

The purpose of this experiment was to investigate the effects of light intensity on the rate of photosynthesis in a Moneywort plant. By observing the plant in distilled water mixed with sodium bicarbonate, different light bulbs were targeted onto the plant. The measurement of the amount of bubbles present on the plant during the trial of the experiment enabled us to identify the comparisons between the activity of the light and the process of photosynthesis.

In my research paper, I will attempt to determine how the perception of light in phytochromes plays a role in the development of plants. Specifically, I will look at how phytochromes play a role in the growth and development of Arabidopsis thaliana. The paper will also look at how light perception plays a role in phototropism and the immune systems of a plant. Finally, my paper will explore how changing light conditions impact perception in phytochromes.

2) Different plant species interaction of soil moisture provide high specie richness index of invertebrates.

In my experiment, there are many different variables that are being altered and controlled. My independent variable is the type of coffee used including, light, medium, and dark roast, decaffeinated, and gluten free. Following that, my dependent variable is the amount of plant growth. The type of seeds, coffee maker, pot and soil will all be controlled throughout the experiment, as well as the location of growth, and the ratio of water to coffee added daily. I hypothesised that the coffee with the highest pH and most caffeine, or light roast, will display the most growth. This is due to the fact that caffeine contains ingredients like potassium and phosphorous, which are known to enhance plant growth. In fact ,”Many consumers assume that the

The authors are trying to determine how elevated Tsoil and elevated CO2 will affect the physiological responses of shade-tolerant species in light conditions. Also, how elevated CO2 and high light treatment affect physiological traits of shade-tolerant plants.

Water is essential for life as we know it on earth. It is used by plants

Observation: A higher density of plants were observed to grow near a source of water with the plant density decreasing as the distance to the water source increased.

With more studies being conducted on plants grown in various lights it could bring a rise in the production of vegetation indoors and out. The purpose of this study was to test whether or not plant grown in red, blue and normal light effect the growth of a bean plant. The question being, will red and blue light impact the growth rate of a bean plant? It was hypothesized that plants grown in blue light it would produce larger plants compared to the plants grown in the red and normal light. As (Smith et al. 1973) stated that blue light at a high energy can satisfy both requirements for growth but, red light at any level can only satisfy some requirements. If blue light can satisfy the requirements of growth production, than plants grown in blue light will produce taller plants compared to plants grown in red

Like animals, plants are affected by gravity. Yet, they manage to grow upward and to great heights. How do they do this? While there are many forces acting on plants from the outside, there are also forces at work within plants themselves. These forces enable plants to stay up straight, take in water, extend their roots, and find light. Plants hold themselves up in two main ways, through turgor pressure and by using special woody tissues.

In this experiment, I tested the theory of how light would affect the growth of a bean plant. According to gardenguides.com, lack of light is detrimental to plant growth.”Plants that don't get enough light don't have the resources they require, and fail to bloom or fruit.” It is also stated that every plant will need a different strength of sunlight such as full sun, partial sun, or indirect sunlight (also known as full shade). Plants that receive inadequate amounts of sunlight will not thrive.The reasoning behind this is due to a process called Photosynthesis, stated in gardeningknowhow.com. Photosynthesis is a chemical process which converts energy in the form of light into a chemical energy which is a vital food source for plants to thrive.

A plant is any of the boundless number of living beings within the biological kingdom Plantae, these species are considered of low motility since this species generally generate their own food by sunlight. They incorporate a large group of commonplace life forms including trees, forbs, bushes, grasses, vines, plants, and greeneries. In this task we are experimenting the relationship between light and plant growth by growing plants in three different lights which are red light, blue light and white light. As I stated above that plants generate their own food by sunlight. Sunlight can be broken up by a prism into respective colors of red, blue, orange, yellow, green, indigo, violet and white. All this lights have specific