ENV100Y5 Lecture Notes - Lecture 30: Crop Trust, Svalbard Global Seed Vault, Biological Pest Control

• School: UTM
• Department: Environment
• Course: ENV100Y5
• Professor: Barbara Murck

Document Summary

Chapter 8 - part 3. Tuesday, november 17, 2015. Mechanization and monoculture go hand- in- hand. 90% of our food comes from 15 crop species and 8 livestock species. Renders crops susceptible to disease and pests. Populations are constantly facing evolve pests = but to evolve u need genetic diversity to start with. Preservation of crop diversity is extremely important. Mechanization and market forces discourage diversity in food. Consumers prefer uniform (nothing icky on it), standardized food (ig food) Seed banks are living museums. Seeds are collected, preserved & periodically planted. Hand pollination preserves genetic diversity. Svalbard global seed vault ( doomsday vault ) The green revolution involved the development of new cultivars. Cultivars = variety of plant that has been intentionally selected for. More plant energy into growth of grain instead of leaves or stem. More uniform easier mechanized harvesting. Vitamin a deficiency= night blindness. Golden rice - genetically modified, vitamin a rich.