Volume 1 - Issue 5 (May 2021)

Effect of UV-B radiation on growth and yield of Capsicum annum L.

- Komal Kumari *, Romil Dagha and Anuradha Singh


Human life is majorly dependent on plants and plants require sunlight for photosynthesis which regulates proper growth and development. Any change or effect to these plants can cause heavy lose to their market value as well as can affect the human body. Moreover, it has been recognized that UV-B radiation (280–315 nm) when induced to plants can cause phenolic compound accumulation, flavonoid destruction and even can damage the DNA structure of the plants. The aim of the present study was to evaluate the effect of UV-B exposure on Capsicum annuum plant growth and yield. The UV-B induced a reduction in stem length, stem dry weight and number of floral, leave size. The largest reduction in these variables was observed when combining UV-B and drought. UV-B treated well-watered plants displayed fructification approximately 1 week earlier than non-UV-B-treated controls. The control plants show proper growth with fruits and flower.


Keywords: UV-B radiation, Capsicum annuum, Ultraviolet rays, growth reduction