Effects of Iron on Growth and Quality of Ipomoea aquatica Forsk

The water culture method was conducted to research the impacts of 10,20,30,40 and 50 μmol/L of iron treatment on growth characteristics and nutritional quality of three water spinach(Ipomoea aquatica Forsk.) varieties.The results showed that proper application of iron can significantly improve height and contents of chlorophyll,iron,protein and Vc,thereby improved yield and quality of water spinach.With the same iron concentration,different varieties of water spinach have different growth characteristics,among which the growth and the quality of Tengweng were better than those of the other two varieties.With 20～30 μmol/L of low iron treatment,the Tengweng can be satisfied better during production,among them,the 20 μmol/L was the best iron concentration for application.