Abschlussbericht Projekt: „Verminderung der ... - BLE

Table 2 Water concentration (g kg -1 FM), water potential (MPa), osmolality (mmol kg -1 ), osmotic potential (MPa), modulus of elasticity (MPa), pressure potential (MPa) and BSI (%) of
tubers differing in their specific gravity (kg L -1 ) harvested 2007 and stored for five and eight months
Period
Harvest
Five months
stored
Eight months
stored
Parameter
Specific gravity
1.095
Water concentration A 876.77 ± 28.2 a 838.48 ± 32.2 ab 827.36 ± 60.6 ab 803.27 ± 36.2 b 774.77 ± 25.9 b 757.13 ± 38.4 b
Water potential A -0.72 ± 0.1 a -0.72 ± 0.1 a -0.71 ± 0.0 a -0.73 ± 0.0 a -0.72 ± 0.0 a -0.74 ± 0.0 a
Osmolarlity C 394.65 ± 26.7 a 391.63 ± 13.8 a 398.78 ± 13.9 a 404.21 ± 16.8 a 403.05 ± 8.8 a 390.30 ± 11.1 a
Osmotic potential A -0.96 ± 0.1 a -0.96 ± 0.0 a -0.97 ± 0.0 a -0.99 ± 0.0 a -0.99 ± 0.0 a -0.95 ± 0.0 a
Modulus of elasticity A 3.79 ± 0.9 a 3.83 ± 0.7 a 3.95 ± 0.6 a 3.67 ± 0.6 a 4.07 ± 0.7 a 2.99 ± 0.6 b
Pressure potential B 0.25 ± 0.1 ab 0.24 ± 0.0 ab 0.27 ± 0.0 a 0.26 ± 0.0 ab 0.27 ± 0.0 a 0.21 ± 0.0 b
BSI A 4.50 ± 1.6 c 35.03 ± 3.9 c 50.43 ± 4.0 b 67.53 ± 3.8 ab 98.77 ± 1.2 a
Water concentration A 863.10 ± 14.8 a 846.59 ± 27.1 ab 831.15 ± 26.0 ab 817.08 ± 21.9 b 785.42 ± 17.6 c 765.25 ± 18.5 c
Water potential B -0.80 ± 0.0 a -0.81 ± 0.0 a -0.81 ± 0.0 a -0.82 ± 0.1 a -0.83 ± 0.0 a -0.81 ± 0.0 a
Osmolarlity B 450.00 ± 7.1 a 451.85 ± 17.5 a 456.08 ± 18.8 a 450.75 ± 19.5 a 461.80 ± 12.2 a 453.60 ± 16.5 a
Osmotic potential B -1.10 ± 0.0 a -1.10 ± 0.0 a -1.11 ± 0.1 a -1.10 ± 0.1 a -1.13 ± 0.0 a -1.11 ± 0.0 a
Modulus of elasticity B 2.08 ± 0.3 a 2.20 ± 0.4 a 2.40 ± 0.5 a 2.04 ± 0.4 a 2.11 ± 0.3 a 1.98 ± 0.4 a
Pressure potential A 0.30 ± 0.0 a 0.29 ± 0.04 a 0.30 ± 0.0 a 0.29 ± 0.0 a 0.30 ± 0.0 a 0.30 ± 0.0 a
BSI B 31.67 ± 4.11 d 25.33 ± 4.1 c 50.19 ± 4.6 b 95.93 ± 0.6 a
Water concentration A 827.96 ± 28.2 a 816.78 ± 25.8 ab 800.90 ± 27.8 ab 793.26 ± 24.5 ab 774.33 ± 20.9 ab 746.83 ± 21.7 b
Water potential C -0.91 ± 0.1 a -0.91 ± 0.1 a -0.91 ± 0.1 a -0.88 ± 0.0 a -0.88 ± 0.1 a -0.95 ± 0.1 a
Osmolarlity A 481.05 ± 31.9 a 478.39 ± 27.3 a 477.39 ± 27.3 a 472.89 ± 12.4 a 437.95 ± 38.6 a 463.28 ± 9.8 a
Osmotic potential B -1.18 ± 0.1 a -1.17 ± 0.1 a -1.17 ± 0.0 a -1.16 ± 0.0 a -1.07 ± 0.1 a -1.13 ± 0.0 a
Modulus of elasticity B 1.74 ± 0.2 a 2.23 ± 0.6 a 2.14 ± 0.5 a 2.43 ± 0.6 a 2.16 ± 0.3 a 1.68 ± 0.6 a
Pressure potential B 0.26 ± 0.0 a 0.26 ± 0.1 a 0.26 0.05 a 0.28 0.06 a 0.19 0.08 a 0.18 0.07 a
BSI C 4.40 ± 2.46 c 2.49 1.37 c 23.21 5.06 b 50.39 4.32 a
A,B,C different upper case letters indicate significant differences between test periods within single parameters by Tukey's test (p ≤0.05), irrespective of specific gravity
a.b.c different lower case letters indicate significant differences of tubers by Tukey's test (p ≤0.05)
187
within single parameters and tests periods