Landraces: A review of definitions and classifications |
| |
Authors: | AC Zeven |
| |
Institution: | (1) c/o Department of Plant Breeding (I.v.P.), Agricultural University, POB 386, 6700 AJ Wageningen, The Netherlands |
| |
Abstract: | The first reference to landraces as genetic resources dates from 1890. Some 20 years later the first definitions of a landrace
were published. In the period 1909–1952 several definitions of the term landrace have been presented. No definitions were
discovered in articles published in the period 1953–1974. The reason could be that after the Second World War attention of
plant breeders and others was focussed on making instant progress. New definitions have been presented since 1974. Genetically
related landraces form a landrace group. Synonyms of the term landrace and landrace group as cited in the literature are also
given. The classification of types of landraces given by Mayr in 1934 had been discussed and an amended classification provided,
paying attention to contamination caused by seed change. As a landrace has a complex and indefinable nature an all-embracing
definition cannot be given. However, I suggest the following: an autochthonous landrace is a variety with a high capacity
to tolerate biotic and abiotic stress, resulting in a high yield stability and an intermediate yield level under a low input
agricultural system.
This revised version was published online in August 2006 with corrections to the Cover Date. |
| |
Keywords: | landrace garden-race definition classification history |
本文献已被 SpringerLink 等数据库收录! |
|