The Principles Of Plant Biology: The Growth Of Plants

This investigation was designed to compare the height of Pteridium aquilinum in a light area and a dark area of Rushy Plains, Epping Forest and to establish if light intensity does have an effect on the growth of Pteridium aquilinum, commonly known as Bracken. From my research it was clear that the height of Bracken is affected by abiotic factors, other than light intensity, such as: soil moisture, soil temperature, air temperature and soil pH so I had to control these factors. I carried out preliminary experiments to find a suitable site where all these factors where constant. For my actual investigation I measure

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

might affect the fitness of each variant. In other words which factors might increase plant growth, survival,

On the one hand, there is the effect of water content in the soil: due to its ability to store

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.

Triggers production of other hormones, particularly ethylene and ABA, leading to leaf, abscission, abnormal growth, growth inhibition, and cell death

AP Environmental Science-Acid Rain Labs:  Students were tasked with growing plants then using various concentrations of acidic water to gather qualitative data on plant growth and development in the presence of various acidic water mixtures over the course of two weeks. They then compared the Range of Tolerance of the plants to the local pH of rainwater to determine the expected impact on plants on the local level, as well as in other parts of the world.

Different types of organisms behave differently in their environments. They may flourish and grow well close together, or they may compete over resources. One plant may even stunt the growth of another plant by stealing all of the water and nutrients. This is known as an allelopathic effect. There are various different types of plants that have this effect on other plants.

Plans can have two different kinds of growth: indeterminate and determinate. Plants that grow all throughout their lifetime and never reach a size limit have indeterminate growth. Most plant organs have determinate growth, which means that they stop growing after they reach a certain size. The reason that plants grow without ceasing is the presence of permanently dividing unspecialized tissues called meristems. There are two types of meristems: apical and lateral. Apical meristems are located at the tops of shoots and roots, and they enable primary growth, which is growth in length (Campbell et al., 2014). In primary growth, shoots grow upwards to try and absorb more light, and roots grow deeper into the soil to increase the surface area of the plant. Lateral meristems allow the plant to grow in thickness by a process called secondary growth. Herbaceous plants grow predominantly through primary growth, whereas woody plants use both primary and

Over the recent years, freshwaters have decreased dramatically due to water pollution. Therefore, 3% of water is freshwater and 97% is saltwater. As the result of this water pollution can have a meaningful consequence not only to animals and humans but as well as to plants. In addition, it causes an eruption of a current plant growth by harming the earth’s aquatic environment by altering the plant’s surrounding pH level. Acid rain is formed because of the atmospheric sulfur dioxide and nitrogen dioxide which is produced by human-made sources. In fact, with most of the environment freshwater from lakes and rivers, one of the most common aquatic plants are American waterweed the elodea plant. The behavioral function of this plant is to float

     Plants are autotrophs that mean they are able to synthesize food directly from inorganic compounds, instead of relying on other organisms. They use carbon dioxide gas and water to produce sugars and oxygen

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

The Indian Lotus is an aquatic plant that is quite popular among cultures as being sacred. It is often used to portray beauty as it grows from the mud unstained and pure. It is also used today in many Asian foods. As such the growth of the Indian Lotus is one that is very important to many cultures and societies. Knowledge of the optimum pH in which the Indian Lotus grows can be significant due to how the pH of the environment the Indian Lotus grows in can vary based upon pollution and other factors. Therefore in the event of high pollution, or any situation that changes the pH of the environment botanists may be able to predict or decipher the effect of that change on the growth of the plants in the area, specifically the Indian Lotus.

The health of a growing plant depends more on just the amount of sun and water it intakes. The very soil that a plant grows in can effect the plant in ways such as height, time it takes to grow, and ability to accept nutrients needed for life. Successful soil is more than just sand and clay, it also contains millions of microorganisms and types of catalysts. Researchers have studied the effects of mulch, what type of water is used, and soil content when growing a plant, but the factor with the most influence is what makes up the soils composition. The purpose of studying soil is to ensure healthy growth of plants because their populations are declining,

In this study, the effect of introducing non-local plant material into a certain environment for restoration purposes was investigated. Several studies already showed that plants exhibit local adaptation to their sympatric environment (Howe et al., 2003; Savolainen et al., 2007; Leimu and Fischer, 2008; Salmela, 2014). We hypothesized that if A. arenaria shows evidence of local adaptation, we expect the plants of the experimental site, and closely related ones, to have a greater performance than allopatric populations (Vander Mijnsbrugge et al., 2010). Results indicated an increase in survival with increasing distance from the study site in the first phase of the experiment. In the second phase, the relation between survival and distance