Development of extremely short season maize

极短季玉米的开发

• 批准号: 470407-2014
• 负责人: Lee, Elizabeth
• 金额: $ 2.62万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=657011
• 关键词: Development; extremely; short; season; maize

The next frontier for corn breeding in North America is the shorter season growing environments of Canada, specifically Manitoba, Saskatchewan, and parts of Ontario. Hybrids specifically developed for these environments are extremely limited, retarding the expansion of corn acreage in these regions. This proposal represents the collaborative efforts of the sole University corn breeder in Canada, the largest Canadian-owned seed corn company (Maizex Seeds Inc.), and DLF Pickseed which until recently was a Canadian-owned company specializing in forages and turf for Eastern and Western Canada. Collectively our aim is to develop inbred parents and hybrid combinations that are designed for the unique extremely short season environments of Manitoba, Ontario and the other Western Provinces. Beyond the development of inbred lines and hybrids, our research focuses on 3 key questions, which will greatly facilitate future breeding efforts. (1) What features of the environment and of the corn plant limit productivity and increase risk of crop failure? (2) What are the ideal characteristics of a successful corn hybrid in these extremely short season environments? (3) How are these ideal characteristics inherited? Finally, this highly collaborative proposal creates a unique opportunity for both undergrad and graduate students to acquire hands-on experience working side-by-side with commercial corn breeders and product managers.**

北美玉米育种的下一个前沿是加拿大的短季生长环境，特别是马尼托巴省、萨斯喀彻温省和安大略省的部分地区。专门为这些环境开发的杂交品种极其有限，阻碍了这些地区玉米种植面积的扩大。该提案代表了加拿大唯一的大学玉米育种者、加拿大最大的玉米种子公司 (Maizex Seeds Inc.) 和 DLF Pickseed 的合作努力，DLF Pickseed 直到最近还是一家加拿大公司，专门为东部和西部地区提供饲料和草坪。加拿大西部。 我们的共同目标是开发专为马尼托巴省、安大略省和其他西部省份独特的极短季节环境而设计的近交亲本和杂交组合。 除了自交系和杂交种的开发之外，我们的研究还集中在 3 个关键问题上，这将极大地促进未来的育种工作。 (1) 环境和玉米植株的哪些特征限制了生产力并增加了农作物歉收的风险？ (2) 在这些极短季节的环境中，成功的玉米杂交种的理想特征是什么？ （3）这些理想特征是如何遗传的？ 最后，这个高度协作的提案为本科生和研究生创造了一个独特的机会，让他们获得与商业玉米育种者和产品经理并肩工作的实践经验。 **