Anthracnose Disease and Physiological Aspects of Soybean in Saturated Soil Culture in Tidal Land

Saturated soil culture in tidal land could be an alternative measure for achieving sufficient soybean production to meet demand and reduce the current 56% dependence on imports. Therefore, this study aims investigate disease development nitrogen fixation rate of water-saturated cultivation land. It was conducted Simpang Village, Berbak District, East Tanjung Jabung, Jambi Province, Indonesia, subjected a randomized block design as environmental design. The treatment consisted 3 water inundation levels trench, namely, 15, 20, 25 cm from surface. results showed that height standing system affected moisture. Furthermore, high moisture anthracnose caused by fungus Colletotrichumdematinum var. truncatum. attack reached 15.7% with 72% at depth 15 below There also 16.3%, 70.5% 20 highest percentage fallen pods plots up 15cm water, which 17.3% 16.7%, respectively. root nodules' weight decreased decreased, indicated reduction activity acetylene, waterlogging Soybean crop yield trench. numbers filled pods, dry seeds per plant, 100 were lower Additionally, severity strongly correlated nodules seed/plant weight. Increased significantly contributed decline nodules, very moderately acetylene-reducing activity.