The ability of a young seedling to sense and respond to the light environment, and so trigger the transition to photosynthetic growth, is pivotal to its establishment and survival.
(The ability of a young seedling to sense and respond to the light environment, and so trigger the transition to photosynthetic growth; is; pivotal to its establishment and survival)
The ability of a young seedling to sense and respond to the light environment, and so trigger the transition to photosynthetic growth
is
pivotal to its establishment and survival