Gymnosperm reproductive mechanisms

裸子植物的繁殖机制

• 批准号: 43775-2008
• 负责人: VonAderkas, Patrick
• 金额: $ 3.36万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=421360
• 关键词: Gymnosperm; reproductive; mechanisms

Forests cover more than a quarter of the land area of the planet. In Canada, 250 million hectares are treed. Softwoods, or conifers, produce pulp and lumber, both of which are important components of our economy. To ensure regeneration of these forests, government and industry annually plant more than 720 million trees. Only 10 % of these are from seed that has been genetically selected and improved by breeding programs. Limitations in orchard production, limitations in reproduction technologies due to pests, pathology and mismanagement, all play a role.

森林覆盖了地球陆地面积的四分之一以上。在加拿大，有2.5亿公顷的树木。软木或针叶树生产纸浆和木材，这两者都是我们经济的重要组成部分。为了确保这些森林的再生，政府和工业每年种植超过7.2亿棵树。其中只有10%来自经过基因选择和育种计划改良的种子。果园生产的限制，害虫、病理和管理不善导致的繁殖技术的限制，都发挥了作用。