One ppm of capsaicin is equal to 15 Scoville Units. The higher the RSR, the more pungent the pepper. The level of pungency is controlled by seed development in the pod. Therefore, RSR may be lower than expected in cases of poor pollination. In general, hot peppers are less susceptible to sunburn than bell peppers are.
Several varieties bear pods that develop above the leaf canopy and point up to the sky.
For more information , contact your county Extension office. Look in your telephone directory under your county's name to find the number.