甜菜碱对盐碱胁迫下海岛棉幼苗光合作用及生物量积累的影响
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严青青,张巨松,代健敏,窦巧巧
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Effects of glycinebetain on photosynthesis and biomass accumulation of island cotton seedlings under saline alkali stress
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Qing-Qing YAN,Ju-Song ZHANG,Jian-Min DAI,Qiao-Qiao DOU
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表2 不同处理对海岛棉干物质积累的影响
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Table 2 Effects of different treatments on dry matter accumulation of island cotton
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品种 Variety | 盐碱浓度 Salt and alkali concentration (mmol L-1) | 甜菜碱浓度 Betaine concentration (mmol L-1) | 茎叶干重 Stem and leaf dry weight (mg) | 根干重 Root dry weight (mg) | 总干重 Total dry weight (mg) | 新海35号 | 0 | 0 | 0.97±0.01 a | 0.19±0.01 a | 1.16±0.02 a | Xinhai 35 | 120 | 0 | 0.74±0.03 d | 0.14±0.00 cde | 0.88±0.03 e | | | 30 | 0.88±0.01 b | 0.17±0.01 b | 1.05±0.01 b | | | 60 | 0.83±0.01 bc | 0.15±0.00 cd | 0.98±0.01 c | | 180 | 0 | 0.54±0.01 g | 0.11±0.00 f | 0.66±0.01 h | | | 30 | 0.68±0.01 e | 0.13±0.00 de | 0.81±0.01 f | | | 60 | 0.61±0.01 f | 0.12±0.01 ef | 0.74±0.01 g | | 240 | 0 | 0.33±0.04 i | 0.08±0.01 gh | 0.41±0.04 k | | | 30 | 0.41±0.01 h | 0.09±0.00 g | 0.51±0.01 i | | | 60 | 0.37±0.01 hi | 0.06±0.00 i | 0.43±0.01 jk | 新海48号 | 0 | 0 | 0.86±0.01 b | 0.15±0.00 c | 1.01±0.01 bc | Xinhai 48 | 120 | 0 | 0.79±0.02 c | 0.12±0.00 ef | 0.92±0.02 de | | | 30 | 0.85±0.04 b | 0.14±0.00 cde | 0.99±0.04 c | | | 60 | 0.84±0.02 bc | 0.13±0.01 de | 0.97±0.01 cd | | 180 | 0 | 0.39±0.02 h | 0.08±0.00 gh | 0.46±0.02 ijk | | | 30 | 0.43±0.00 h | 0.09±0.00 g | 0.52±0.00 i | | | 60 | 0.42±0.00 h | 0.07±0.00 hi | 0.49±0.00 ij | | 240 | 0 | 0.15±0.00 j | 0.02±0.00 jk | 0.17±0.00 l | | | 30 | 0.19±0.01 j | 0.03±0.00 j | 0.21±0.01 l | | | 60 | 0.15±0.01 j | 0.01±0.00 k | 0.16±0.01 l |
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