| Abstract: In order to clarify the effects of plant immune inducers (aminooligosaccharide and chitosan) on the growth and yield of cucumber, two plant immune inducers were applied for four times during the growth period of cucumber, and the plant height, stem diameter, weight of single fruit and yield of cucumber were measured at seedling and growth stages. The results showed that the plant height and stem diameter of cucumber during seeding stage increased by 4.4%-7.4% and 2.7%-6.9%, respectively. During the growth period, the plant height of cucumber increased by 10.57%-13.57%, the stem diameter increased by 8.1%-13.8%, the fresh weight of overground increased by 17.5%, the dry weight increased by 18.5%, and the weight of single fruit increased by 8.01%-10.12%. The yield increased by about 300 kg per 667 m2. In conlusion, plant immune inducer had a good effect on promoting growth and increasing yield of cucumber. |