Understanding seed longevity in weeds

了解杂草种子的寿命

• 批准号: 2628735
• 金额: --
• 依托单位: CRANFIELD UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2628735
• 关键词: Understanding; seed; longevity; weeds

Efficient weed management in agricultural systems is key for achieving maximum potential yields and crop quality. The fate of weed seeds in the soil seedbank though is not well understood. Only a fraction of the seeds in the soil bank will germinate each year, but they often survive for longer in soil than in carefully controlled conditions of a modern seed store. Different accessions/strains vary in these traits even within a species. The basis of these differences is currently unknown but hampers the development of robust weed control strategies, from the screening of herbicides through to the development of appropriate agronomical practices

农业系统中有效的杂草管理是实现最大潜在产量和作物质量的关键。杂草种子在土壤种子库中的命运还不清楚。土壤库中每年只有一小部分种子会发芽，但它们在土壤中的存活时间往往比在现代种子库精心控制的条件下更长。不同的种质/品系在这些性状上甚至在一个物种内也是不同的。这些差异的基础目前尚不清楚，但阻碍了强大的杂草控制策略的发展，从除草剂的筛选到适当的农艺措施的发展