Types Of Light And Nutrients - 1881 Words

Question 1 Light and nutrients are two key factors that are crucial for plant growth and development. The types of light required by plants are wavelengths of light that are invisible to the human eye. This light is needed to induce certain responses critical to plant development and survival. For example, the change in levels of phytochrome red light and phytochrome far red light allow plants to begin flowering, germinate, break dormancy, or senescence. Each plant species has a different photoperiod that dictates when each of these types of responses will occur depending upon the members of hours of light the plants receive. Some plants are short-day plant, meaning that they require few hours of daylight and a greater number of hours of†¦show more content†¦Depending on the plant species requirement of certain nutrients may vary. However, the main nutrients that are needed for all plants are carbon, hydrogen, and oxygen. These nutrients are actually procured from the air instead of th e soil. Nitrogen, phosphorous, potassium, magnesium, and sulfur are nutrients that plants get from the soil and require them in large amounts, especially nitrogen. Other nutrients needed on small amounts include iron, boron, copper, manganese, molybdenum, zinc, cobalt, chlorine, and nickel. While the general understanding might be to always ensure that plants have access to adequate nutrients by supplying fertilizer, some plants like soybeans and alfalfa have nodules that work with bacteria to fix their own nitrogen. However, if enough nitrogen is always supplied to the plants they may not use this ability much as much. Therefore, allowing plants the opportunity to use their own abilities to procure nutrients can be a method of improving the efficacy of plants. Keeping these ideas in mind can also greatly enhance the plants ability to get closer to their full genetic potential. Question 2 Like the panama disease that affects the production of bananas, the fire blight disease causes similar symptoms to occur on apple and pear trees as well as others plant in the RosaceaeShow MoreRelatedEssay about Studies on Plant Responses to Multiple Stresses1000 Words   |  4 PagesSultan et al., 1998). Studies on plant responses to multiple stresses often deal only with stresses linked to limitations in several resources such as nutrients, inorganic carbon or water availability, light quality or quantity and focus on the optimization of resource acquisition and allocation. In fixed water, when exposed to increasing nutrient stress, plants tend to have a reduced total dry mass and leaf number (based on Zhang, 1996; Crossley et al., 2002), increased allocation to root and stemRead MoreUnder What Climate Conditions Do You Find Tropical Savanna Ecosystems?1549 Words   |  7 Pages because light penetrates all the way through the water to the bottom part of this zone. 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The zona fasciculata functions in the middle section of the three zones of the adrenal cortex. Its main purpose is to produce glucocorticoids. The glucocorticoids is a type of steroid hormones found in the adrenal cortex. It contributes to the regulationRead MoreNutrition Is The Science That Deals With Food And How The Body Uses It ( Dwyer ) Essay1324 Words   |  6 Pagesworld today. Many people suffer from diet and health related diseases every day. Having a healthy diet can help to prevent many diseases like heart disease, hypertension (high blood pressure), type 2 diabetes, osteoporosis, and certain types of cancer. Controlling your portion size can help prevent these types of diseases (â€Å"Heart-healthy diet†). Eating the right amount of food for a cer tain diet can do wonders for your health. This means that a person should eat the right amount of food for their bodyRead MoreDiscuss the relative importance of physical and human factors in accounting for changes to vegetation over time within ecosystems in the British Isles1623 Words   |  7 PagesThere are many factors that account for the changes to the vegetation over time within ecosystems in the British Isles, such as human activity, climate, soil, light availability and intensity and natural disasters. The characteristics of the vegetation that are influenced by these factors are height, distribution, variety of species, adaptations and density of the vegetation. Some of these factors have relatively little influence on the succession development, whereas others have a dramatic influence