for plant growth as well as crop physiology. Almost every plant process is affected directly or indirectly by water supply. Plants‚ as one of basic food sources‚ either in nature or cultivations‚ in their growing period‚ require water or at least moisture for germination. Certainly‚ most land plants are exposed to short or long term water stress at some times in their life cycle and have tended to develop some adaptive mechanisms for adapting to changing environmental conditions. Some plants may
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PLANT RESPONSES TROPISM is a biological phenomenon‚ indicating growth or turning movement of a biological organism‚ usually a plant‚ in response to an environmental stimulus. In tropisms‚ this response is dependent on the direction of the species. The word tropism comes from the Greek trope ("to turn" or "to change"). Tropisms are usually named for the stimulus involved and may be either positive (towards the stimulus) or negative (away from the stimulus). Phototropism is the growth response
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produce crops. Salinity is a problem for plant growth which is reduced as a result of the soluble salt in the soil. These salts are too high in the soil and as a result they are difficult to be managed or controlled. Plants exposed to salt stress undergo changes in their metabolism place in their environment. This make water unavailable to plants ‚ which results in reduced water up take (Mwai ‚ 2001). Imbibition is a diffusion process of water in plants where the net movement of water is along a
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The Effects of a Seed Coat in Seed Germination Mario Monroe INT1 Task 3 The Effects of a Seed Coat in Seed Germination Abstract Seed germination is an important aspect in plants growth and food production. It is therefore it’s of uttermost importance to know the effective ways of seed germination so as to improve food production. This research was therefore prompted by the rising issue of farmers buying low quality and a damaged maize seed from unscrupulous sellers and this has led to deterioration
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characteristics of all living organisms. The physiological definition of growth is “An irreversible change in the organism‚ organ or cell is called growth”‚ which includes increase in mass weight or volume of living organism‚ it leads to development in plants. REGION OF GROWTH: Growth region is located at extreme apices of root‚ stem‚ leaf where we make out meristematic tissue. In addition to above‚ the region where intercalary and lateral meristem is present is also considered as growth region. PHASES
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Chemicals? Do you ever feel that you need your own space? When you feel you want to get away from other people‚ you can walk away or leave the room. Plants and trees need their own space in order to obtain sufficient amounts of nutrients from the soil and sunlight. Plants‚ of course‚ are unable to move away. However‚ some plants use chemicals to keep other plants from growing too close. This process is called allelopathy. Some scientists believe that germinating radish seeds give off a chemical that
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into a new plant. The embryo grows inside the ovule and then develops into a fruit. 3. Many types of flowers produce fruits that are fragrant and sweet tasting. Describe how these characteristics of fruits may be important for dispersal. Fruits protect and help disperse seeds. The more fragrant and sweet smelling a fruit is‚ the more attractive it is to animals. Therefore‚ plants that produce the fragrant and sweet smelling fruit may be in more abundance than other dull looking plants without a
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References: "Sustainable Cacao Production" Production Technology Manual. Cocoa Foundation of the Philippines‚ Inc. (CocoaPhil) Lecture Presentations prepared by Dr. Romulo Cena‚ Professor II and Plant Breeder‚ University of Southern Mindanao and Ms. Ludivina Dumaya‚ Assistant Coordinator‚ IPM Regional Program DA Region 12 and Dr. Nicolas Richards‚ Chief of Staff‚ SUCCESS Alliance Program of the Philippines‚ USDA as presented during the Training
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“Running Head”: TRANQUILITY Tranquility Tari Williams ENG 121 Sarah Ngo December 3‚ 2012 Tranquility I awake each morning to the hiss and gurgle of the coffee maker. The smell of brewing coffee lures me to the kitchen. Eagerly I wait for the gurgling to stop; with no self-control‚ I prematurely dispense a cup. With coffee in hand‚ I anxiously make my way to the patio. I take the sun and she spreads her warm blanket upon me. Sitting on my patio while sipping on coffee
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Medicinal Plants And Their Medicinal Values ALOE VERA FLOWER • Aloe Vera is used in traditional medicine as a multipurpose skin treatment. In Ayurvedic medicine it is called kathalai‚ as are extracts from agave.[59]:196 for aloe:117 for agave Early records of Aloe Vera use appears in the Ebers Payrus from the 16th century BC‚[17]:18 and in Dioscorides’ De Materia Medica and Pliny the Elder’s Natural in the mid - first century AD.[17]:20 It is also written of in the Juliana Anicia Codex of 512 AD
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