Abschlussbericht Projekt: „Verminderung der ... - BLE

Table 1 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 2006 and stored for five and eight months
Period
Harvest
Five months
stored
Eight months
stored
Parameter
186
Specific gravity
1.095
Water concentration A 847.20 ± 39.5 a 816.13 ± 36.9 ab 802.43 ± 56.9 b 785.82 ± 32.6 b
Water potential A -0.73 ± 0.1 a -0.69 ± 0.1 a -0.73 ± 0.1 a -0.61 ± 0.1 a
Osmolality C 471.08 ± 22.6 a 422.27 ± 24.0 a 409.24 ± 24.1 a 352.35 ± 7.7 a
Osmotic potential A -1.15 ± 0.1 a -1.03 ± 0.1 a -1.00 ± 0.1 a -0.86 ± 0.0 a
Modulus of elasticity B 3.08 ± 1.5 a 2.62 ± 1.1 a 2.21 ± 0.9 a 2.98 ± 1.0 a
Pressure potential AB 0.43 ± 0.1 a 0.34 ± 0.1 a 0.27 ± 0.1 a 0.25 ± 0.1 a
BSI B 10.50 ± 2.8 c 18.58 ± 4.0 c 37.00 ± 4.5 b 89.68 ± 3.1 a
Water concentration A 892.12 ± 26.5 a 852.44 ± 22.7 a 829.03 ± 34.4 a 804.19 ± 39.0 a 790.22 ± 36.2 b 761.71 ± 17.2 c
Water potential B -0.88 ± 0.0 a -0.90 ± 0.0 ab -0.91 ± 0.1 ab -0.99 ± 0.1 b -0.97 ± 0.1 b -0.87 ± 0.1 a
Osmolality B 427.35 ± 3.2 ab 467.61 ± 7.6 b 503.42 ± 13.8 ab 511.26 ± 7.9 ab 564.51 ± 26.8 a 469.50 ± 4.8 b
Osmotic potential B -1.04 ± 0.0 ab -1.14 ± 0.0 a -1.23 ± 0.0 a -1.25 ± 0.0 ab -1.38 ± 0.1 b -1.15 ± 0.0 ab
Modulus of elasticity B 3.30 ± 0.1 a 4.11 ± 1.5 a 4.58 ± 1.9 a 3.73 ± 1.7 a 5.70 ± 3.1 a 3.23 ± 1.2 a
Pressure potential B 0.16 ± 0.0 a 0.24 ± 0.0 a 0.32 ± 0.1 a 0.26 ± 0.1 a 0.41 ± 0.1 a 0.28 ± 0.1 a
BSI A 21.45 ± 3.3 c 31.14 ± 3.3 b 45.20 ± 4.1 b 77.00 ± 5.2 a
Water concentration A 865.29 ± 28.2 a 833.02 ± 31.6 a 807.59 ± 29.5 ab 787.99 ± 23.6 bc 761.59 ± 41.0 c 766.40 ± 24.1 bc
Water potential B -1.07 ± 0.1 ab -0.92 ± 0.1 a -0.91 ± 0.1 a -1.01 ± 0.1 ab -1.11 ± 0.2 b -1.04 ± 0.1 ab
Osmolality A 530.10 ± 44.6 a 529.50 ± 39.8 a 530.51 ± 34.6 a 571.50 ±72.1 a 586.57 ± 57.1 a 589.65 ± 53.4 a
Osmotic potential C -1.30 ± 0.1 a -1.29 ± 0.1 a -1.30 ± 0.1 a -1.40 ± 0.2 a -1.43 ± 0.2 a -1.44 ± 0.1 a
Modulus of elasticity A 4.45 ± 4.0 a 5.98 ± 2.9 a 6.41 ± 3.8 a 6.43 ± 1.9 a 5.54 ± 2.4 a 6.18 ± 4.9 a
Pressure potential A 0.23 ± 0.1 a 0.38 ± 0.1 a 0.39 ± 0.1 a 0.39 ± 0.1 a 0.32 ± 0.1 a 0.40 ± 0.2 a
BSI B 4.33 ± 1.7 c 14.67 ± 2.0 b 27.88 ± 3.0 b 42.12 ± 3.1 b 55.00 ± 3.4 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)
within single parameters and tests periods