Data/hora: 01/06/2024 11:13:57

Provedor de dados: | 21
País: | Germany
Título: | Yield performance in heritage spring wheat and barley varieties in organic farming
Autores: | Borgen, Anders; Grupe, Per; Ytting, Nanna Karkov.
Data: | 2010
Ano: | 2010
Palavras-chave: | Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Resumo: | The grain yield in cereals has increased considerable since the beginning of industrialisation of agriculture, including introduction of modern plant breeding 100-150 years ago. Since beginning of this period, plant breeding has selected and bred varieties suitable to the changing agricultural conditions, and hence to increasing extent focused on conventional high input agriculture as this type of agriculture developed. Most pronounced is probably the plant height, and old high plants are likely to lodge at the nitrogen level normally seen in modern industrial agriculture. Modern varieties are characterised by a high degree of specific resistance genes against selected pathogens on the expense on a broad durable polygenic resistance (Robinson 1995). Organic farming is a low input agricultural system, with some similarities with former agriculture compared with modern industrial agriculture. Therefore, heritage varieties selected for, and adapted to the low input agriculture in former days could have some advantages compared with modern varieties, and/or the advantage of using modern varieties could be less pronounced in the low input organic system. On this background, a project in Denmark has multiplied and studied agronomic and quality traits of mainly Danish heritage varieties compared with modern varieties under organic cropping conditions.
Tipo: | Conference paper, poster, etc.

Identificador:

http://orgprints.org/18945/4/18945.pdf

Borgen, Anders; Grupe, Per and Ytting, Nanna Karkov    (2010) Yield performance in heritage spring wheat and barley varieties in organic farming.   In:     Breeding for resilience: A strategy for organic and low-input farming systems? EUCARPIA 2nd Conference of the "Organic and Low-Input Agriculture" Section, pp. 27-30.

Relação: | http://orgprints.org/18945/
Formato: | application/pdf