Figure 3.

The effect of Isaria cateinannulata inoculation on the soluble phosphorus content of different stages of Fagopyrum tataricum under ring-chain rod bundle spore irrigation in the CK (control group) and experimental group (the treatment group after I. cateinannulata root irrigation). (a) The soluble phosphorus content (mg/g) in various parts of Fagopyrum tataricum during the seedling stage (15 days after root irrigation); (b) the soluble phosphorus content (mg/g) in various parts of Fagopyrum tataricum during the filling stage (30 days after root irrigation); (c) the soluble phosphorus content (mg/g) in various parts of Fagopyrum tataricum during the mature stage (80 days after root irrigation); and (d) the standard curve for measuring the soluble phosphorus content in different parts of Fagopyrum tataricum. ‘*’ indicates that the difference between the experimental group and the control group is significant, and ‘**’ indicates that the difference between the experimental group and the control group is extremely significant.