Sammanfattning

Perennial grain crops could make a valuable addition to sustainable agriculture, potentially even as an alternative to their annual counterparts. The ability of perennials to grow year after year significantly reduces the number of agricultural inputs required, in terms of both planting and weed control, while reduced tillage improves soil health and on-farm biodiversity. Presently, perennial grain crops are not grown at large scale, mainly due to their early stages of domestication and current low yields. Narrowing the yield gap between perennial and annual grain crops will depend on characterizing differences in their life cycles, resource allocation, and reproductive strategies and understanding the trade-offs between annualism, perennialism, and yield. The genetic and biochemical pathways controlling plant growth, physiology, and senescence should be analyzed in perennial crop plants. This information could then be used to facilitate tailored genetic improvement of selected perennial grain crops to improve agronomic traits and enhance yield, while maintaining the benefits associated with perennialism.

Nyckelord

breeding; domestication; genome editing; grain crops; perennialism; species-wide hybridization; perennial grains; perennial agriculture

Publicerad i

Frontiers in Plant Science
2022, Volym: 13, artikelnummer: 898769
Utgivare: FRONTIERS MEDIA SA

SLU författare

• Lundquist, Per-Olof

  • Institutionen för växtbiologi, Sveriges lantbruksuniversitet
    

• Westerbergh, Anna

  • Institutionen för växtbiologi, Sveriges lantbruksuniversitet
    

Associerade SLU-program

SLU Nätverk växtskydd


Globala målen

SDG2 Avskaffa hunger, uppnå tryggad livsmedelsförsörjning och förbättrad nutrition samt främja ett hållbart jordbruk


UKÄ forskningsämne

Jordbruksvetenskap


Publikationens identifierare

DOI: https://doi.org/10.3389/fpls.2022.898769

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/118768