Mung bean (Vigna radiata (L.) Wilczek) is belong to fabaceae family that currently is grown in different parts of world and it have large role in nutrition at developing countries. The study was conducted at field of agronomy and plant physiology laboratory in Hawassa University College of Agriculture at Hawassa during the period of mid-March to early June 2018. This experiment was conducted to investigate the efficiency of different Mung bean varieties on response of different growth parameters such as Specific Leaf Area, Leaf area ratio, net assimilation rate, and Relative growth and total dry Biomass of among 3 mung bean varieties that are Sunaina, MH-97-6, and Gofa local on growth and developmental characteristics of above ground biomass and growth parameters. Three mung bean cultivars were grown in randomized complete block design with three replications. Different growth parameters such as, Days to 50% Emergency, specific leaf area ratio, leaf area ratio, net assimilation rate, relative growth rate and above ground biomass were collected and analyzed by using SAS software (ver 9.1). The study revealed that there is significant difference among cultivars observed for Days to 50%Emergency and total dry biomass. The SLA and LAR of all cultivars increment from first sample to second sample as crop development progressed. Gofa local cultivar is highest Total dry biomass and late days to emergency. In general, the study result revealed that significant difference among varieties (P ≤ 0.05).

Keywords: Leaf Area Ratio; Mung Bean; Net Assimilation Rate; Relative Growth; Specific Leaf Area; Dry Biomass