耐盐性不同水稻品种根系对盐胁迫的响应差异及其机理研究

顾逸彪, 颜佳倩, 薛张逸, 束晨晨, 张伟杨, 张耗, 刘立军, 王志琴, 周振玲, 徐大勇, 杨建昌, 顾骏飞

Different Responses of Roots of Rice Varieties to Salt Stress and the Underlying Mechanisms

Gu Yibiao, Yan Jiaqian, Xue Zhangyi, Shu Chenchen, Zhang Weiyang, Zhang Hao, Liu Lijun, Wang Zhiqin, Zhou Zhenling, Xu Dayong, Yang Jianchang, Gu Junfei

表3 盐胁迫下不同水稻品种各时期的根系形态性状（2021）

Table 3 Root morphological indexes of different rice varieties in different periods under salt stress (2021)

品种 Variety 处理 Treatment 根干重（g/盆） Root dry weight (g/pot) 根长（m/盆） Root length (m/pot) 根表面积（cm2/盆） Root surface area (cm2/pot) 平均根直径 Mean root diameter (mm) MT PI HD-15 MT PI HD-15 MT PI HD-15 MT PI HD-15 连鉴5号 Lianjian 5 0.00% 4.159a 17.448a 14.216a 250.8a 839.7a 718.9a 5586.9a 11 851.1a 10 032.6a 0.694a 0.785a 0.791a 0.10% 3.214b 14.188b 12.059b 204.7ab 711.0b 620.8b 4366.0b 9284.3b 8864.2b 0.602ab 0.713ab 0.728ab 0.20% 2.65bc 12.020c 10.146bc 168.8bc 657.3b 539.8b 3756.8b 8574.6b 7794.6b 0.579b 0.639b 0.649b 0.25% 2.401c 11.058d 9.170c 129.5c 528.2c 435.1c 2158.2c 6918.0c 5693.3c 0.509b 0.592b 0.608b 连鉴6号 Lianjian 6 0.00% 4.171a 17.244a 14.581a 236.2a 848.1a 722.4a 5707.7a 11 575.4a 9867.3a 0.689a 0.785a 0.810a 0.10% 3.225b 14.011b 12.237b 192.6b 734.4b 635.7ab 4360.6b 9706.5b 8359.0b 0.606b 0.720ab 0.725ab 0.20% 2.106c 12.04bc 10.539bc 157.9bc 649.3b 560.7b 3707.4c 8462.3c 7297.6c 0.552bc 0.623bc 0.632b 0.25% 1.626c 10.050c 9.388c 122.2c 534.2c 422.3c 2166.3d 6866.9d 5581.7d 0.495c 0.609c 0.616b 连鉴7号 Lianjian 7 0.00% 4.108a 18.219a 14.160a 254.1a 822.8a 750.1a 5246.1a 11 408.7a 9640.4a 0.681a 0.764a 0.789a 0.10% 3.372b 13.981b 11.933b 200.8b 694.4b 645.2ab 4089.0a 9636.5b 8322.1ab 0.575ab 0.692ab 0.707ab 0.20% 2.556c 11.013bc 10.788c 153.3c 621.1bc 545.4bc 2632.8b 8286.0bc 6956.6b 0.503b 0.642bc 0.657bc 0.25% 1.959d 9.760c 8.715d 118.4c 529.8c 440.6c 2070.4b 6657.2c 5437.1c 0.474b 0.616c 0.610c 连鉴9号 Lianjian 9 0.00% 4.392a 17.673a 14.485a 272.3a 840.1a 759.9a 5869.2a 12 105.6a 10 136.7a 0.723a 0.797a 0.827a 0.10% 3.694b 14.935b 12.361ab 233.3ab 726.4b 632.9b 4454.4b 9594.0b 8728.4b 0.659ab 0.716ab 0.731ab 0.20% 2.833c 13.327c 11.031b 193.4bc 638.6bc 549.2bc 3669.6bc 8471.1bc 7923.5b 0.578b 0.663b 0.667b 0.25% 2.297d 11.256d 9.729b 160.3c 562.0c 454.9c 2614.1c 7337.0c 5879.0c 0.566b 0.638b 0.635b 连粳7号 Lianjing 7 0.00% 4.825a 19.894a 15.735a 317.0a 906.1a 805.0a 4620.5a 13 629.3a 11 861.9a 0.739a 0.878a 0.888a 0.10% 2.935b 13.128b 11.239b 223.6b 640.9b 563.3b 3476.4b 8558.8b 7334.6b 0.574b 0.678b 0.694b 0.20% 2.100c 10.093c 9.199c 159.6c 483.3c 426.6b 2390.2c 7157.5bc 6316.8b 0.512c 0.554bc 0.529c 0.25% 1.360d 7.548d / 112.3d 383.8d / 1667.9c 5961.8c / 0.438d 0.459c / 武运粳30 Wuyunjing 30 0.00% 4.308a 19.541a 15.797a 236.3a 913.2a 807.1a 4321.1a 14 240.0a 10 880.0a 0.733a 0.864a 0.868a 0.10% 2.435b 12.135b 10.886b 187.2b 606.1b 537.9b 3139.6b 7874.6b 6973.7b 0.512b 0.633b 0.631b 0.20% 1.520c 9.816c 8.335b 150.7c 463.0c 423.2b 1804.0c 6095.4c 5475.9b 0.427c 0.561bc 0.537c 0.25% 1.104c 6.895c / 97.9d 370.9d / 1384.3c 5775.4c / 0.394c 0.466c /