Abstract: In order to breed high quality Welsh onion,nutritional components of 15 varieties which came from different regions were tested.The results showed,the total sulfur content of different varieties had significance difference.The former two varieties were,‘Yanzhihong' (local variety, Inner Mongolia)and long pseudostem cong(I'ianjin).The soluble sugar content in pseodostern was higher than in leaf.The fomner three varieties were Tuoxian single stem cong(local variety, Inner Mongolia), long pseudostem cong Yanzhihong'.The soluble protein content in leaf was higher than in pseodostern,The former three varietieswere Tuoxian single stem cong(local variety,Inner Mongolia),chive and`long pseudostem cong.The free aminoacid content in pseodostem was higher than in Ieaf.The former three varieties were‘long pseudostem cong',Tuoxian single stem cong' and‘Yanzhihong'.There was no any difference of Vc content on all teste varieties.From Eield planting to harvest,the dry matter content increased in both pseudostem and leaf.The increasing amount in pseudostem was higher than in leaf.

Key words: Welsh onion, Total sulfur content, Soluble sugar content, Soluble protein content, Free amino acidcontent, VG content, Dry matter content

CLC Number: 

• S663.124