The Study On Growth Patter Of Onion In Vegetative Growth Stage

The growth pattern of onion is vegetative growth period was studied among shanxi red epidermis -. shandong red epidermis-. xiongyue onion and huangyu onion. The result showed that, the total vegetative period of the above is: 140?-. 140?-. 130?-. 130?days respectively. The total vegetative period of onions in turn divided into four stages: generation stage seedling stage.~ leaf growth stage and bulb enlargement stage, and the days of each stage 14A6,50---52,39----41,29---35. In the meantime, the growth regulariiy Of root, leaf and bulb has been deeply studied, and the photosynthesis property of onion has been preliminarily studied in this paper.