Role of mycorrhizas in the mineral nutrition of host plants Mycorrhizas are very important in the uptake of nutrients such as P‚ N‚ K‚ Cu‚ Zn and Ca by plants especially in soils low in these nutrients. Since P is the most limiting nutrient in tropical soils‚ mycorrhizas are vital for improving P nutrition particularly for cultivated plants. External hyphae can absorb and translocate P to the host from soil outside the root depletion zone. The thin mycorrhizal hyphae (2-4 μm in diameter) are able
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Plant Hemoglobin Hemoglobin is a protein-iron compound found within the red blood cells of most vertebrates and is responsible for the cell’s red pigment. These red blood cells carries oxygen from the lungs to the rest of the tissue cells throughout the rest of the body. Just as hemoglobin transports oxygen in humans‚ they have also been found transporting oxygen within plants. In plants‚ there are two types of hemoglobin that can be found; symbiotic and non symbiotic. Oxygen is used
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Bangladesh‚ Power‚ sources to eradicate the power crisis of Bangladesh‚ we have also discussed their present scenario and future potential. II. PRESENT SCENARIO At present‚ 53% of the total electricity generation of Bangladesh is from the power plants under public sector and 47% of the net generation of the country is from private sector [2]. Even though many extra units both from public and private sector have been added to the national grid‚ the power crisis is still a big issue in the country
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from the aerial parts of plants‚ especially leaves but also stems‚ flowers and roots. Leaf surfaces are dotted with openings called stomates that are bordered by guard cells. Collectively‚ the structures are called stomata.[1] Leaf transpiration occurs through stomata‚ and can be as a necessary "cost" associated with many processes such as the opening of the pistil and allowing the diffusion of carbon dioxide gas from the air for photosynthesis. Transpiration also cools plants and enables mass flow
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non-native plant in Southern California I research some information of Iris Pseudacorus which is commonly known as Yellowflag Iris. It is native to Europe‚ Western Asia‚ and northwest Africa. Especially‚ Pseudacours is one of two iris species native to British Island. It was brought to Canada and the U.S in the early 1900s in order to use as an erosion control plant such as used in sewage treatment cells. In recent decade‚ the plant is used in landscaping and sold through garden and plant dealers
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Plant hormones are specialized chemical substances produced by plants. They are the main internal factors controlling growth and development. Hormones are produced in one part of a plant and transported to others‚ where they are effective in very small amounts. Depending on the target tissue‚ a given hormone may have different effects. Plant hormones play an integral role in controlling the growth and development of plants. A plant hormone is generally described as an organic compound synthesized
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[diseases]’‚ where Ayurvedic uses are practiced. Ecologically‚ it survives well in similar environments to its own‚ for example replacing the babul acacia tree from India with Africanacacia species. USES Traditional medicinal use In India‚ the plant is variously known as "Sacred Tree‚" "Heal All‚" "Nature’s Drugstore‚" "Village Pharmacy" and "Panacea for all diseases". Products made from neem trees have been used in India for over two millennia for their medicinal properties: neem products are
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Green plants absorb light energy using chlorophyll in their leaves. They use it to react carbon dioxide with water to make a sugar called glucose. The glucose is used in respiration‚ or converted into starch and stored. Oxygen is produced as a by-product. This process is called photosynthesis. Temperature‚ carbon dioxide concentration and light intensity are factors that can limit the rate of photosynthesis. Plants also need mineral ions‚ including nitrate and magnesium‚ for healthy growth. They
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CHAPTER 36 PLANT CELLS The first barrier to form between daughter cells is the middle lamella. Daughter cells expand to their final size and make polysaccharides for a primary wall. After expansion stops waterproofing materials are added for a secondary wall. Water and dissolved materials move from cell to cell by way of pit pairs. A pit is a thin spot in the primary wall where the secondary wall is absent or separated from the primary wall by a space. Strands of cytoplasm called
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increase rate of growth and increase number of leaves. Materials and Methods The materials used included seeds of Wisconsin fast plants Brassica rapa‚ Styrofoam planting quads‚ potting soil‚ 14- 14- 14- NPK fertilizer beads‚ labeling tape‚ quad wicks‚ plastic water container with wick cloth‚ and anti-algal squares. To construct two different planters for our fast plants we used two Styrofoam planting quads. Each planter and squares inside of the planter were labeled. Each square was filled about half
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