Angelica sinensis(Oliv.)Diels is a valuable herbal plant.In production,its premature bolting,caused by vernalization,seriously affects its root yield.In this stuty,thermal treatments of 5,0 and?5°C,as well as tre...Angelica sinensis(Oliv.)Diels is a valuable herbal plant.In production,its premature bolting,caused by vernalization,seriously affects its root yield.In this stuty,thermal treatments of 5,0 and?5°C,as well as treatments with shifts between these temperatures,were performed in its overwintering storage to investigate the chilling effect on the early bolting of Angelica sinensis and analyze the vernalization response to different temperatures.The results indicated that the 0°C treatment rendered the highest bolting rate,and the-5°C resulted in the lowest bolting rate.The initial short-term treatment at-5°C could promote the early bolting of A.sinensis,and the treatment at 5°C prior to planting could hasten its seedling bud growth.At the appropriate temperature,the early bolting rate of Angelica was positively related to the number of treatment days.So the frozen storage at-5°C could inhibit the vernalization of Angelica seedlings and the early bolting.The vernalization of Angelica could be a continuous process related to the number of treatment days.This study would serve as reference for the overwintering storage and cultivation of Angelica.展开更多
基金Supported by National Natural Science Foundation of China(31260298,31660565)Science and Technology Planning Project of Gansu Province(18JR3RE243,1308RJZE288)~~
文摘Angelica sinensis(Oliv.)Diels is a valuable herbal plant.In production,its premature bolting,caused by vernalization,seriously affects its root yield.In this stuty,thermal treatments of 5,0 and?5°C,as well as treatments with shifts between these temperatures,were performed in its overwintering storage to investigate the chilling effect on the early bolting of Angelica sinensis and analyze the vernalization response to different temperatures.The results indicated that the 0°C treatment rendered the highest bolting rate,and the-5°C resulted in the lowest bolting rate.The initial short-term treatment at-5°C could promote the early bolting of A.sinensis,and the treatment at 5°C prior to planting could hasten its seedling bud growth.At the appropriate temperature,the early bolting rate of Angelica was positively related to the number of treatment days.So the frozen storage at-5°C could inhibit the vernalization of Angelica seedlings and the early bolting.The vernalization of Angelica could be a continuous process related to the number of treatment days.This study would serve as reference for the overwintering storage and cultivation of Angelica.
