Soluble sugars were measured according to Yem and Wlillis (1954). Soluble protein was determined by the method of Bradford (1976). Vc content was determined following Boyer (1986).
Soluble sugars weremeasured according to Yem and Wlillis (1954). Solubleprotein was determined by the method of Bradford (1976).Vc content was determined following Boyer (1986).