盐胁迫对2种菠萝蜜属植物幼苗生长及光合荧光特性的影响
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苏兰茜,白亭玉,鱼欢,吴刚,谭乐和
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Effects of Salt Stress on Seedlings Growth, Photosynthesis and Chlorophyll Fluorescence of Two Species of Artocarpus
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LanXi SU,TingYu BAI,Huan YU,Gang WU,LeHe TAN
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表2 盐胁迫下菠萝蜜和面包果幼苗叶片的叶绿素荧光特性
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Table 2 Chlorophyll fluorescence in leaves of jackfruit and breadfruit seedlings under salt stress
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| 处理 Treatment | 光化学猝灭系数 Photochemical quenching coefficient qP | 非光化学猝灭系数 Non-photochemical quenching coefficient NPQ | 光系统Ⅱ活性 PSII activity Fv/Fo | 潜在最大光能转换效率 Potential maximum light energy conversion efficiency Fv/Fm | 实际光能转换效率 Actual light energy conversion efficiency ΦPSⅡ | 相对电子传递效率 Relative electron transfer efficiency rETR | 菠萝蜜 Jackfruit | T0 | 0.95±0.02a | 0.11±0.02a | 3.74±0.03ab | 0.79±0.00a | 0.72±0.01a | 8.29±0.10a | T1 | 0.94±0.00a | 0.10±0.06a | 4.07±0.06a | 0.80±0.00a | 0.72±0.00a | 8.31±0.06a | T2 | 0.95±0.02a | 0.18±0.05a | 3.80±0.13ab | 0.79±0.01a | 0.70±0.02a | 8.04±0.14a | T3 | 0.91±0.04ab | 0.36±0.41a | 3.11±0.44bc | 0.75±0.03ab | 0.63±0.10ab | 7.19±1.18ab | T4 | 0.88±0.02b | 0.44±0.32a | 2.37±1.00c | 0.69±0.09b | 0.55±0.09b | 6.35±1.03b | 面包果 Breadfruit | T0 | 0.94±0.02a | 0.09±0.01ab | 3.78±0.20a | 0.79±0.01a | 0.71±0.02a | 5.93±0.14a | T1 | 0.93±0.01ab | 0.06±0.03ab | 3.93±0.17a | 0.80±0.01a | 0.70±0.01ab | 5.84±0.11ab | T2 | 0.93±0.00ab | 0.11±0.00a | 3.61±0.01a | 0.78±0.00a | 0.70±0.00a | 5.86±0.01a | T3 | 0.93±0.04ab | 0.10±0.05a | 3.84±0.13a | 0.79±0.01a | 0.70±0.02ab | 5.84±0.20ab | T4 | 0.90±0.01b | 0.04±0.02b | 3.80±0.30a | 0.79±0.01a | 0.67±0.02b | 5.58±0.14b |
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