The Effect of Light on the Size of Ivy Leaves

The purpose of the light against the size of the ivy leaves - plan an experiment to see if the light affects the ivy's leaf size - how it affects the ivy leaf size in this experiment I will explore. I use a common ivy called Hedera helix. I will take two ivy stems. One is exposed to a lot of light from the garden part, the other one is exposed to low light. The ivy leaves facing the south of the garden are exposed to high intensity, but the leaves facing the north of the garden are exposed to low light intensity.

Using sunlight and shadows, this experiment examines the effect of light availability on morphological changes in English ivy (Hedera sp.). You may see changes in the following characteristics: leaf color, hair type and amount, blade leaf or anatomy, leaf size (area), leaf thickness (more or less discrimination fence layer, section From the constraints of the thickness between, the stem root) thickness, the number of branches, the number of branches, the length and the extent, and the weight of the roots and stems, we believe the leaf color expected in sunlight, Focus on observation and measurement of quantity, leaf area and leaf thickness. The undergrowth leaves will have brighter leaves, more hair, and smaller, thicker leaves.

In relation to blade size, shaded blades tend to be heavier than solar blades (Figure 2). In fact, there is a big difference in the average weight of the two leaves (Table 2). The weight tendency of the blade is that the shadow increases the weight as the weight of the blade increases accordingly as the light intensity decreases. The surroundings of the leaves in this study did not provide significant results (Table 1). There is a difference in the average perimeter of leaves with sun and shade, but since the difference is very small, there is no specific tendency in the end. Nevertheless, there are differences, so people can not ignore it and can not make a conclusion based on it; hence it does not provide concrete support in this research.

The tall canopy covers a lot of sunshine. These blades tend to be smaller in size (thus reducing the light absorbing surface area) and tend to have complex edges and protrusions (which allows the absorbed heat to dissipate very quickly It becomes possible to do). Leaves of the lower canopy are more shaded. These lower canopy blades tend to be larger (lighter absorption surface area) and tend to have reduced leaf and edge representation. These tendencies can be observed by comparing the leaves of a crown of tall trees (such as oak) with leaves of low crown (such as hawthorn). Or you can observe with individual trees with leaves on the upper and lower crowns. Trend (eg White Oak) In White Oak, the smaller top canopy leaf also passes the upper shade to provide the lower blade with enough light to allow for continuous photosynthesis It is noteworthy to make it possible.