Figure 4

Relationship between the percentages of EPG waveforms and the sugar contents of A. pisum. The percentage of each waveform is the mean of three measurements at 48 h after each treatment (dsTPS, dsTRE, dsGFP, T100, G100 and normal diet). Z-axis: the percentage of EPG waveforms; X-axis: the trehalose content; Y-axis: the glucose content. The contents of trehalose and glucose were used in the curve fitting as \(z = a_{1} x^{2} + a_{2} y^{2} + a_{3} x + a_{4} y + b\), where z is normalized percentage of EPG waveforms by arcsine square-root transformation; x is trehalose contents; y is glucose contents; a1, a2, a3, and a4 are coefficients; b is constant. The 5 parameters were fitted by 12 points data of trehalose contents, glucose contents, and EPG waveforms percentages at 48 h. The np waveform (A), C waveform (B), E1 waveform (C), E2 waveform (D), F waveform (E), and G waveform (F) are presented. The percentages of EPG waveforms are presented as the Z-plane and bottom contour in the coulor scale from dark red to blue for the highest and lowest percentages. Edited in Origin version 8.5 (https://www.originlab.com/).