SCIE 1P51 Lecture Notes - Lecture 10: Hand-Pollination, Genetic Engineering, Selective Breeding
10 Dec 2015
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Document Summary
Large fish is more polluted then small fish, such as killer whales. One of the largest producers in the world. Five largest sectors are grains and oilseeds, livestock, dairy, horticulture, poultry and eggs. 5% of grain farms are reported as organic. Water and energy conservation, have excess to so much energy. Preserving native variants protects against crop failure. Monocultures are vulnerable, so wild relatives contain genes that could provide resistance to diseases and pests. We have already lost a great deal of genetic diversity in crops. > wheat varieties in china dropped from 10,000 (1949) to 1,000 (1970s) Market forces discourage diversity in food"s appearances. Seed banks: preserve seed types as a living museum of genetic diversity. Seeds are collected and preserved, and periodically planted. The royal botanic garden"s millennium seed band in britain aims to band 25% of the world"s seeds by 2030. Norway has stated a doomsday vault seed bank.
