Initial characterisation of low and high seed dormancy populations of Lolium rigidum produced by repeated selection
The physiological and biochemical bases of seed dormancy in Lolium rigidum (annual
ryegrass) are largely unknown, and study of this process is complicated by the outcrossing
nature of the species and the strong influence of environment on seed dormancy. In order to
identify heritable biochemical factors contributing to seed dormancy in L. rigidum, seeds
from a field-collected population were used to select sub-populations with consistently low
or high seed dormancy over four generations. Low-dormancy seeds showed constitutive α …
ryegrass) are largely unknown, and study of this process is complicated by the outcrossing
nature of the species and the strong influence of environment on seed dormancy. In order to
identify heritable biochemical factors contributing to seed dormancy in L. rigidum, seeds
from a field-collected population were used to select sub-populations with consistently low
or high seed dormancy over four generations. Low-dormancy seeds showed constitutive α …
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