The Combined Effect of Volume Water Supply and Varieties on Physiological Aspects, Growth, and Yield of Red Beetroot (Beta vulgaris L.) in Dryland Jatikerto, Indonesia

Increasing public awareness of living a healthy life, causing red beetroot demand in Indonesia has increased. However, with increasingly limited area of the plateau to the development of the plant, causing its development are directed to dry land are still many obstacles, such as limited availability of water for the plant level, and the high air temperature. Therefore, research that aims to obtain information about the right water needs and tolerant varieties on dry land needs to be done. A greenhouse experiment was conducted in UB's experimental station in Jatikertot village from June to September 2019. This study used a randomized complete block design (RCBD), consisting of 10 treatment combinations, namely the volume of water supply (350,550,750, 950, and 1150) mm water/season + varieties (ie Vikima and Ayumi), repeated 3 times. F test at 5% is used to determine the effect of treatments, while differences between treatments were referred to Honestly Significant Difference (HSD) value at 5%. The highest yield which includes chlorophyll a-b content, stomata density, root length, leaf surface area, total dry weight of plants and fresh weight of tubers/ plants was obtained in water supply volume of 1150 mm/season + Ayumi varieties. While the lowest was obtained in the volume of 350 - 550 mm water/season for both varieties for all variables observed.