leaf abscissionの例文

• Premature leaf abscission has been shown to occur in response to infestation by gall aphids.
• Our article suggests that leaf abscission is indirectly due to changes in sunlight, but it's as unreferenced as StuRat's opinions above.
• They regulate which tissues grow upwards and which grow downwards, leaf formation and stem growth, fruit development and ripening, as well as leaf abscission and even plant death.
• Many plant species naturally uptake heavy metals and excess nutrients for a variety of reasons : sequestration, drought resistance, disposal by leaf abscission, interference with other plants, and defense against pathogens and herbivores.
• The loss of bootjacks is a natural, if poorly understood, phenomenon as the palm does not create a leaf abscission zone so the loss of the leaf bases results from some other physical or biological process.