Figures

Response of *Jatropha curcas* seeds after different imbibition time. (A) pH; (B) Electrical conductivity; (C) Seed moisture and (D) Seed water content. The letter represent the mean difference with Student-Newman-Keuls test (p = 0.05). Means are represent with (±SE). n = 4.

Figure 6.1: Response of Jatropha curcas seeds after different imbibition time. (A) pH; (B) Electrical conductivity; (C) Seed moisture and (D) Seed water content. The letter represent the mean difference with Student-Newman-Keuls test (p = 0.05). Means are represent with (±SE). n = 4.

Germination response in *Jatropha curcas* seeds after different imbibition times. (A) Germination (%); (B) Mean germination time (days); (C) Germination synchrony and (D) Germination uncertainty (bits). The letter represent the mean difference with Student-Newman-Keuls test (p = 0.05). Means are represent with (±SE). n = 4.

Figure 6.2: Germination response in Jatropha curcas seeds after different imbibition times. (A) Germination (%); (B) Mean germination time (days); (C) Germination synchrony and (D) Germination uncertainty (bits). The letter represent the mean difference with Student-Newman-Keuls test (p = 0.05). Means are represent with (±SE). n = 4.

Principal Component Analysis from the variables in *Jatropha curcas* seeds after different imbibition times. Where: IBTH, imbibition time; GRP, germination percentage; MGT, mean germination time; SYN, germination synchrony; UNC, germination uncertainty; pH, potential of hydrogen; EC, electrical conductivity; SWC, seed water content; SMT, seed moisture; SDW, seed dry weight; SFW, seed fresh weight; STW, seed turgid weight.

Figure 6.3: Principal Component Analysis from the variables in Jatropha curcas seeds after different imbibition times. Where: IBTH, imbibition time; GRP, germination percentage; MGT, mean germination time; SYN, germination synchrony; UNC, germination uncertainty; pH, potential of hydrogen; EC, electrical conductivity; SWC, seed water content; SMT, seed moisture; SDW, seed dry weight; SFW, seed fresh weight; STW, seed turgid weight.