0000000000585026
AUTHOR
Carolyne Durr
Effects of seed traits on weed seedbank dynamics in response to seed depth and soil structure
International audience; Weed seedling establishment in fields strongly depends of soil tillage because it determines both seed depth and soil structure. Species can differ in their ability to develop after germination a shoot able to grow towards the soil surface. The length of the pre-emergent shoot growth is limited and seed size could be a key functional trait related to the maximum shoot growth. Besides, during pre-emergent growth, a proportion of seedlings can remain blocked under obstacles into the soil. This mortality could be linked to the hypo- or epicotyl morphology. This trait could be correlated to the emergence force exerted at the extremity of the shoot in the soil. The maxima…
How to choose model weed species for analysing the emergence processes in cropping systems? A review
International audience