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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.
Types of survivorship curves
Great importance is being given to life style modifications because of definite benefits observed in patients who follow this. Life style changes have advantages not only in the co
Prior to the solving of the structure of DNA, Erwin Chargaff calculated the amounts of the four nucleotides (A, T,G,C) and made which of the following conclusions? A. All four
structure of rephron
Visceral larva migrans Visceral larva migrans, also known as larval granulomatosis, is a clinical syndrome produced by the extra-intestinal migration of larval nematodes and i
Disorders of Thyroid Function: The disorders of thyroid function may lead to following problems: Juvenile Hypothyroidism Hypothyroidism is one of the most common end
Q. How is the extracorporeal digestion associated to predation in arachnids? Arachnids can inoculate poison to kill or paralyze their preys using structures called chelicerae.
Explain Viruses and their classification? Viruses are living organisms. Viruses are not living organisms. No, the above is not a misprint! In fact, viruses defy the normal c
Physiological Regeneration This type of regeneration is a regular physiological function including the continuous replacements of cells and tissues, and thus is indispensible
Describe the monomer unit of a protein and how monomer units are assembled into peptides.
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