Evaluation of Radiation Absorption and use Efficiency in Substitution Intercropping of Sesame (Sesamum Indicum L.) and Mung Bean (Vigna Radiata L.)

Sunlight is the main source of energy in agroecosystems. Light is absorbed by leaves and this energy is stored during the process of photosynthesis in chemical bonds of organic compounds and finally converts to the plant biomass. In order to increase the efficiency of this process is necessary to be aware of how changes in light absorption in plants. From an agricultural perspective, Understanding how light changes within the plant canopy is important within a farming system, Especially when considering various intercropping systems, agro forestry systems and even non-crop species management [1,2]. Modern crop production systems attempt to optimize the sunlight utilization using the reliable and efficient crop management [3]. Increasing agrodiversity is one of the best and most operational principles to optimize the sunlight utilization [4,5]. Agro-diversity, a term of the 1990s, refers to interactions between agricultural management practices, farmers’ resource endowments, bio-physical resources, and species [6]. Also, in another study pointed that, biodiversity refers to all species of plants, animals and micro-organisms existing and interacting within an ecosystem [7]. Meanwhile, enhancing functional biodiversity is a key ecological strategy in agroecosystems if correctly assembled in time and space [8].