Abstract:

Waterlogging and drought effect on the sesame production were studied by invested 20 counties or cities in China from 2008 to 2010. The results showed waterlogging was the predominant abiotic factors affecting sesame production. From 2008 to 2010, waterlogging stress affected 39.6%, 23.3% and 15.4% of the sesame planting area of the 20 locations, and brought 27.5%, 19.0% and 21.5% loss in average yield respectively; furthermore, there 1.1%, 5.8% and 4.2% sesame planting area were affected by drought with the average yield reduced 22.5%, 36.3% and 24.6% respectively. The results also revealed more waterlogging incidences happened in initial bloom, full-bloom and filling stages, and it is still lack of effective methods to control sesame waterlogging.