水分关键期干旱胁迫对冬小麦矿质元素积累、产量和品质的影响
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张继波, 薛晓萍, 张新刚, 邱粲, 谭方颖, 李楠
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Effects of drought stress on mineral element accumulation, yield and grain quality of winter wheat during water critical period
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ZHANG Jibo, XUE Xiaoping, ZHANG Xingang, QIU Can, TAN Fangying, LI Nan
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表2 不同水分处理下冬小麦叶片光合参数变化
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Tab.2 Changes of photosynthetic parameters of winter wheat leaves under different water treatments
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日 期 | 水分 处理 | Pnmax/ (μmol·m-2·s-1) | AQE/ (mmol·mol-1) | LCP/ (μmol·m-2·s-1) | LSP/ (μmol·m-2·s-1) | 4月1日 | T1 | 21.74±2.51a | 0.0164±0.0019a | 59.60±6.85c | 1418.3±163.1a | T2 | 20.34±1.75b | 0.0158±0.0014a | 65.00±5.59a | 1435.5±123.5a | T3 | 18.48±1.94d | 0.0188±0.0021a | 61.70±6.48b | 1437.6±150.9a | T4 | 19.40±1.86c | 0.0158±0.0015a | 63.30±6.08a | 1425.1±136.8a | T5 | 19.14±1.49c | 0.0162±0.0013a | 59.10±4.61c | 1432.2±111.7a | 4月6日 | T1 | 19.40±2.23a | 0.0159±0.0018a | 60.80±6.99d | 1424.5±163.8a | T2 | 15.80±1.36b | 0.0139±0.0012b | 68.30±5.87c | 1381.3±118.8a | T3 | 13.92±1.46c | 0.0122±0.0013c | 72.40±7.62c | 1372.6±144.1a | T4 | 11.05±1.06d | 0.0101±0.0012d | 78.30±7.52b | 1294.4±124.3b | T5 | 10.05±0.78d | 0.0099±0.0008d | 85.90±6.71a | 1274.2±99.4b | 4月16日 | T1 | 18.48±2.13a | 0.0176±0.0021a | 62.70±7.21d | 1430.3±164.5a | T2 | 10.51±0.92b | 0.0092±0.0008b | 70.60±6.07c | 1311.3±112.8b | T3 | 9.35±0.98c | 0.0092±0.0011b | 74.90±7.86c | 1289.7±135.4b | T4 | 8.02±0.77d | 0.0088±0.0008b | 90.50±8.69b | 1187.6±114.0c | T5 | 7.88±0.61d | 0.0076±0.0006c | 97.30±7.59a | 1012.5±79.0d | 4月26日 | T1 | 18.39±2.11a | 0.0161±0.0019a | 64.40±7.41d | 1432.6±164.7a | T2 | 8.70±0.75b | 0.0090±0.0008b | 74.50±6.41c | 1279.7±110.1b | T3 | 7.89±0.83bc | 0.0088±0.0009b | 78.60±8.25c | 1224.5±128.6b | T4 | 7.01±0.67c | 0.0066±0.0006c | 109.40±10.50b | 1052.4±101.0c | T5 | 6.51±0.51d | 0.0055±0.0004d | 118.50±9.24a | 985.5±76.9d | 5月15日 | T1 | 17.10±1.97a | 0.0188±0.0022a | 66.60±7.66d | 1446.4±166.3a | T2 | 17.80±1.53a | 0.0138±0.0012b | 71.90±6.18c | 1327.4±114.2b | T3 | 17.54±1.84a | 0.0121±0.0013c | 73.70±7.74c | 1312.6±137.8b | T4 | 14.79±1.42b | 0.0090±0.0009d | 92.50±8.83b | 1137.4±109.2c | T5 | 12.27±0.96c | 0.0084±0.0007d | 100.40±7.83a | 1032.2±80.5d |
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