Which type of growth is primarily influenced by the presence of cytokinins?

Cytokinins are a class of plant hormones that play a crucial role in promoting cell division and lateral growth in plants. These hormones are involved in the regulation of various aspects of plant development, particularly influencing the growth of lateral shoots and branches. By triggering cell division in specific areas, cytokinins enable the plant to expand laterally, which is essential for creating a more robust structure and increasing overall foliage.

This lateral growth is significant for plants as it increases the surface area available for photosynthesis and enhances stability. While cytokinins also have some effects on other growth aspects, such as promoting shoot development and delaying senescence, their primary and most direct impact is seen in stimulating lateral growth, making it the most appropriate choice for this question.