Figures (6)  Tables (2)

    • Figure 1. 

      Melon cultivars used in this study.

    • Figure 2. 

      Types of volatile substances in different muskmelon varieties. (a) GTMB, (b) XZM-1, (c) ZZX, (d) NSM, (e) HMC, (f) BPC, (g) XZM-25, (h) JX, (i) 20-123.

    • Figure 3. 

      Cluster analysis based on various volatile substances in different muskmelon varieties.

    • Figure 4. 

      PCA analysis based on main volatile substances in different varieties of melon. A: GTMB, B: XZM-1, C: ZZX, D: NSM, E: HMC, F: BPC, G: XZM-25, H: JX, I: 20-123.

    • Figure 5. 

      LOX, ADH, and AAT enzyme activities varied across nine distinct melon varieties.

    • Figure 6. 

      Different varieties of melon with significant differences in genes involved in fatty acid degradation pathways.

    • VarietyWeight (kg)Vertical diameter (cm)Transverse diameter (cm)Hardness (kg/m3)Soluble solids (%)
      GTMB1.75 ± 0.29de13.9 ± 0.81b17.1 ± 1.33d4.10 ± 0.27a12.2 ± 0.36de
      XZM-11.72 ± 0.17de12.7 ± 0.58c17.8 ± 0.61d2.28 ± 0.11de14.6 ± 0.46bc
      ZZX1.43 ± 0.15e12.0 ± 0.38c17.2 ± 0.95d2.7 ± 0.48bc16.0 ± 0.79abc
      NSM2.03 ± 0.21cd14.7 ± 0.40ab19.0 ± 1.5d2.5 ± 0.14cd16.8 ± 1.00a
      HMC1.76 ± 0.24de14.8 ± 0.48ab18.2 ± 1.1d3.2 ± 0.20bc14.0 ± 0.76cd
      BPC1.63 ± 0.16de14.0 ± 0.50b19.3 ± 0.6cd1.5 ± 0.13f11.2 ± 1.14e
      XZM-252.25 ± 0.15bc15.3 ± 0.69a21.4 ± 0.1c1.8 ± 0.25ef14.2 ± 2.25bc
      JX2.85 ± 0.40ab15.6 ± 1.00a25.3 ± 2.2b2.1 ± 0.17de13.5 ± 1.30cd
      20-1232.51 ± 0.33a14.9 ± 0.39ab28.3 ± 1.4a2.2 ± 0.19de15.0 ± 1.00abc
      Distinct letters within the same column indicate significant differences (p < 0.05).

      Table 1. 

      Basic physicochemical characteristics for different muskmelons.

    • VarietyRelative content/%
      EstersAlcoholsAldehydesKetonesAcidsPhenols
      GTMB8.213.218.622.930.36.8
      XZM-17.341.447.12.51.70.0
      ZZX46.136.813.80.12.90.2
      NSM32.529.737.30.20.30.0
      HMC2.057.233.42.05.50.0
      BPC42.423.730.91.31.50.3
      XZM-252.461.431.11.03.70.3
      JX25.920.615.116.621.60.3
      20-1235.740.639.64.19.60.3

      Table 2. 

      Relative content of various volatile components in different melons.