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Temperature - Seed Dormancy
Low temperature treatment is an essential prelude to germination in many seeds, and high temperature may be inhibitory at the time of germination. The low temperature chilling requirement is frequently met artificially by the process of stratification. The seeds are layered in trays in cold moist air for a period of several weeks or months. Temperatures between 0 and 10?C are most effective. The chilling requirement is variously located in the embryo or the seed coat, sometimes in both. The chilling requirement of apple seeds, for example, is much longer for intact seeds than for seeds with the coats removed, or for isolated embryos. Red light and GA have a synergistic effect, that is, the combination of both factors stimulates germination more than the sum of the two separately.
We are told that every surface we touch is teeming with bacterial cells, and bacteria are found in the pools we swim in, the water we wash with, and on the hands of friends. Why ar
Acrylamide gel is a polymer gel used for electrophoresis of DNA or protein to measure their sizes (in the daltons for proteins, or in base pairs for DNA). See "Gel electrophoresis
Omnispective Classification This is the extension of the concept of natural classification put forward by Black Welder (1967). The approach seems quite realistic and pragmatic.
Why is the Krebs cycle also called the final common pathway of the degradation of organic compounds? The Krebs cycle is known as the final common pathway of the degradation of
IRON It is present in bread, potatoes, green vegetables, especially spinach, lettuce, cocoa, raisins, red meat, liver, kidney, egg yolk etc. Iron is also available in the bo
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The modern water treatment plan is often called upon to perform wonders with the water fed to it. The clear, safe , even tasteful water that comes from a faucet may have started a
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