Abstract Differences of transpiration rate were explored in this experiment by different temperature wind types. A potometer was used to measure the transpiration rate, while a porometer was used to measure the stomatal conductance. There was an increase of both transpiration rate and the stomatal conductance, however there was a slight discrepancy in the transpiration rate between the cool and hot wind. There is a significance effect of wind and temperature to the transpiration and conductance rates in plants. Introduction In order to regulate water throughout a land plant, leaves and stems had to evolve to meet the demands of different osmotic pressure and water availability. Since leaves are the most exposed and sensitive organs on a plant, they are susceptible to environmental changes such as wind speed and temperature (Bucci et.al 675). Such changes can heavily effect transpiration within a plant. Land plants have evolved and adapted to help regulate its water exchanges with the environment through cuticle that makes up the boundary layer and stomata that directly controls gas and water exchanges. However, the leaves can still become susceptible to dehydration on a windy day due to the decrease in its boundary layer (Anten et.al 554). Temperature can also play a great role in water conductance as it can increase the stress in plants if the temperature is increased (Klimesova et.al 232). When these two conditions reach its peak whether in winter or summer, it can do quite a bit of harm to a plant. In Baig and Tranquillini’s research on Picea abies and Pinus cenbra L, they found that the plants have a hard time in winter since winds would sweep through the top of the plant and cause higher transpiration rates, while the soil lacks free flowing water since it is frozen near the top layers. With these two factors in play, the plants will cause dessication damage to the trees (254). However, the plant can also reduce stomatal conductance to prevent excessive water loss (Anten 554). When conducting this experiment, the transpiration rates should be increasing as the temperature and speed of the winds increase. The wind will disrupt the boundary layer making it thinner, allowing more exchanges between the leaf and the air surroundings. Temperature will also increase transpiration because heat will create a more arid environment causing a less