Going to seed

时间:2019-03-06 07:12:04166网络整理admin

MANY seed banks may be failing to save the genetic diversity of the plants they store. Heiko Parzies and his colleagues at the Scottish Agricultural College in Edinburgh and the University of Edinburgh looked at varieties of ancient barley from Syria called landraces. They found that landraces stored for 72 years had lost up to 70 per cent of their diversity compared with recent collections (Heredity, vol 84, p 476). This may be because the seeds must be sown every few years and fresh seeds gathered to maintain viability. If only part of a collection is sown,