INTRODUCTION Those plants that have healing properties are termed as medicinal plants or herbs. The plant kingdom is divided into several groups‚ but the botanical classification is beyond the scope of this section. However‚ medicinal plants can be simply classified as trees‚ shrubs‚ woody perennials‚ annuals and biennials‚ and climbers. (http://eatt1.tripod.com/amp1.html) Medicinal plants consist of components of therapeutic values and have been used as remedies for human diseases
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Plant Kingdom * Bryophyta * Non-vascular (no xylem or phloem) * Reliance on diffusion and osmosis * Ergo‚ size restriction to damp areas * Reproduce via haploid spores * No roots; rhizoids * No true stems * Possible earliest colonists of land. * Moss‚ liverworts‚ hornworts * Filicinophyta * Seedless (male gamete meets female gametes) * Vascular (xylem carry water and phloem carry nutrients) * Ferns‚ club mosses‚
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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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Introduction For the past 30 years Scientist have searched desperately for the answer to salt toleration within plants. The damaging effects of salt accumulation in agricultural soils have influenced both ancient and modern day civilizations alike. Worldwide‚ an estimated 24.7 million acres of once agriculturally productive land are being lost annually due to irrigation-induced salinity‚ according to the U.S. Department of Agriculture. Thus‚ crop production is limited by salinity on 40% of
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Journal of Minerals & Materials Characterization & Engineering‚ Vol. 10‚ No.4‚ pp.367-385‚ 2011 jmmce.org Printed in the USA. All rights reserved Hot Corrosion & Erosion Problems in Coal Based Power Plants in India and Possible Solutions – A Review Vikas Chawlaa*‚ Amita Chawlab‚ D. Puric‚ S. Prakashc ‚ Prema G. Gurbuxanid and Buta Singh Sidhue Mechanical Engineering Department‚ F.C.E.T. Ferozepur-152002‚ India Chemistry Department‚ Govt. Brijindra College‚Faridkot-151203‚India c Metallurgical
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Plant cells are eukaryotic cells that differ in several key aspects from the cells of other eukaryotic organisms. Their distinctive features include: A large central vacuole‚ a water-filled volume enclosed by a membrane known as the tonoplast maintains the cell’s turgor‚ controls movement of molecules between the cytosol and sap‚ stores useful material and digests waste proteins and organelles. A cell wall composed of cellulose and hemicellulose‚ pectin and in many cases lignin‚ is secreted by
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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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different concentrations of salt water effect plants. The test that will be performed will prove which concentration will have the worst effect. The hypothesis is that by measuring the plants growth each day‚ the largest concentration of salt will harm the plants the most. First‚ the plants were purchased and the water was prepared with the salt concentrations. Second‚ the plants were watered each day with the different concentrations of salt. Third‚ the plants’ growth were observed and recorded each
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affect plant growth could be an interesting experiment. Our experiment consisted of different levels of Windex mixed with water and given to Brassica Rapa plants in order to grow. Are results showed that Windex barely had an effect on the plant growth and the plants showed steady increase in growth. In conclusion‚ our experiment did not assure that Windex add a boost in plant growth but we did find that small‚ insignificant amounts of Windex mixed with water were able to ingested by the plants.
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Fertilizers are essential in plant growth due to the lack of some nutrients in the soil. They contain three distinct categories which are the primary nutrients‚ secondary nutrients and metals. (hazri). In order for a plant to develop growth‚ the basic needs of carbon (C)‚ hydrogen (H)‚ and oxygen (O) are required which are available in the air and water. Also‚ a boost of macronutrients are also essential for plant growth which are obtainable from chemical fertilizers mainly nitrogen (N)‚ phosphate
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