Study on Screening of Waterlogging Tolerance Germplasm Resources of Zanthoxylum bungeanum

In order to screen out strong waterlogging tolerance germplasm resources of Zanthoxylum bungeanum, the growth and waterlogging damage of six Z. bungeanum germplasm materials selected by Sichuan academy of botanical engineering in the early stage were comprehensively evaluated through artificial flooding experiment. The results showed that under waterlogging stress, Chuanzhi-3 still maintained a large stress index of plant height and basal diameter growth, and the waterlogging symptoms appeared only after waterlogging stress for 66 h, with a waterlogging index of only 5.56%, and after waterlogging stress for 96 h, the waterlogging index was 55.56%. The average waterlogging index of each treatment was only 9.63%. The waterlogging symptoms of Chuanzhi-3 were much lighter than other materials, and the waterlogging tolerance was the strongest.