Which of the following may cause pectins in the middle lamella of cells of the separation layer to break down in the fall?
A) Decreasing daylengths.
B) Lower temperatures.
C) Decreasing light intensities.
D) Lack of adequate water.
E) All of these answers are correct.

Question

Quizplus · Accepted Answer

All of these factors can contribute to the breakdown of pectins in the middle lamella, facilitating leaf abscission in the fall.

Which of the Following May Cause Pectins in the Middle