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Effect of Temperature
Certain plants such as the winter rye (Secale cereale) and the biennial strain of henbane (Hyoscyamus Niger) require exposure to low temperature conditions before they start flowering. A phenomenon known as 'vernalization' or 'Yaronization' was noted by the Russian Plant physiologist Gustav Gussner in 1915. Here also embryo or shoot apex seems to be the site of perception and the role of a hormone 'Vernalin" is suggested. Unfortunately like florigen, vernalin has been still elusive. Gibberellin treatment is known to substitute for cold treatment.
Q. Why is it said that during photosynthesis carbon dioxide is improved to form glucose? During photosynthesis carbon dioxide is energetically improve with hydrogen from water.
Illustrate oil-bearing materials Oil contents for vegetable oil-bearing materials vary between 18% and 68% of the total weight of the seed, nut, kernel or fruit as indicated i
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Contamination due to Pathogens - Water Pollution Sewage is a source of pathogenic viruses, bacteria, worms and other parasites. The extent of contamination by these pathogens
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Define Procedure for Testing the Presence of Sugar in Milk? 1. Take 0.1 ml of milk sample in a test tube. 2. Add 0.2 ml of resorcinol solution (0.05 gm of resorcinol in 100
Three charges are at the corners of an equilateral triangle, as shown in the figure below. Calculate the electric field at a point midway between the two charges on the x-axis. (Le
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A snapdragon plant that bred true for white petals was crossed to a plant that bred for purple petals, and all the F1 had white petals. The F1 was selfed. Among the F2, three other
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