The effects of waterlogging on Chinese yam tuber malformation development in directional trough were studied by setting waterlog-ging treatments. The results showed that the soil in directional trough was close to saturated moisture for a long time and the yam tuber malfor-mation and decay were induced without timely drainage after waterlogging. The longer the waterlogging treatment time,the more serious the tu-ber malformation and decay. Waterlogging may induce the formation of tuber malformation by significantly increasing the contents of auxin ( IAA) and gibberellin ( GA3 ) in the tuber. Waterlogging also significantly reduced the contents of starch,crude protein and saponins in tu-ber,thus decreased the function and nutritional quality of Chinese yam.
关键词
渍水/山药/块茎/定向槽/畸形发育
Key words
Waterlogging/Chinese yam/Tuber/Directional trough/Malformation development
维普
万方数据