Table 4 Results from greenhouse growth promotion assays, chlorophyll content and elemental analysis in lettuce inoculated with Rhizobium sp. GPTR29 strain under non-saline (0 nM) and saline (100 nM) conditions
From: Effect of Rhizobium mechanisms in improving tolerance to saline stress in lettuce plants
Greenhouse assays | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Production parameters | Nutritional content of lettuce plants | ||||||||||
Treatment | Chlorophyll (± S.D.) (SPAD units) | Number of leaves (± S.D.) | SFW (± S.D.) (g) | SDW (± S.D.) (g) | N (%) | Ca (mg/plant kg) | K (mg/plant kg) | Mg (mg/plant kg) | Na (mg/plant kg) | P (mg/plant kg) | |
Non-saline conditions | Control | 25.34 (± 3.65)a | 5.53 (± 1.02)a | 2.39 (± 1.01)a | 0.14 (± 0.03)a | 5.68 (± 0.22)a | 13,384.00 (± 1476.044)a | 92,689.50 (± 1679.38)a | 6211.50 (± 1253.70)a | 3232.00 (± 449.72)a | 8099.00 (± 374.77)a |
GPTR29 | 27.20 (± 2.98)b | 6.30 (± 0.70)b | 3.08 (± 0.63)b | 0.15 (± 0.02)a | 5.72 (± 0.16)a | 14,026.33 (± 556.302)a | 108,887.67 (± 6229.36)b | 6614.67 (± 336.30)a | 3735.00 (± 446.15)a | 9049.67 (± 182.67)b | |
100 mM NaCl | Control | 25.54 (± 2.81)a | 5.29 (± 0.81)a | 2.96 (± 0.56)a | 0.12 (± 0.03)a | 5.31 (± 0.08)a | 11,298.00 (± 367.92)a | 92,112,00 (± 5641.30)a | 5214.33 (± 149.00)a | 22,241.00 (± 384.67)a | 8750.67 (± 417.08)a |
GPTR29 | 27.34 (± 2.81)b | 6.05 (± 0.83)b | 3.48 (± 0.34)b | 0.15 (± 0.04)b | 5.41 (± 0.05)a | 11,539.67 (± 1242.54)a | 100,160.00 (± 2675.69)a | 5542.00 (± 859.09)a | 21,535.00 (± 72.13)a | 8907.00 (± 712.23)a | |