不同垄高下雪茄烟根组织结构及根系与地上部生长动态变化

吴永兵, 袁华恩, 张瑛, 陈泳纬, 阳苇丽, 何正川, 赵铭钦

Dynamic Changes in Root Tissue Structure and Root and Above-Ground Growth of Cigar Tobacco at Different Ridge Heights

Wu Yongbing, Yuan Huaen, Zhang Ying, Chen Yongwei, Yang Weili, He Zhengchuan, Zhao Mingqin

表1 不同垄高根组织结构动态变化

Table 1 Dynamic changes in root tissue structure at different ridge heights

指标 Index 处理 Treatment 移栽后天数Days after transplanting 40 d 50 d 60 d 70 d 80 d 根横切面积Root cross-sectional area (mm2) HR 4.47a 20.69a 22.40a 54.83b 60.75a MR 2.55c 11.98b 18.59b 58.23b 56.24a SR 3.63b 14.02b 23.18a 66.10a 52.91b 皮层厚度Cortical thickness (mm) HR 0.32b 0.60a 1.18a 1.07a 1.14a MR 0.32b 0.48b 1.02b 0.92b 0.91b SR 0.45a 0.64a 0.94c 0.92b 0.83a 中柱面积Center column area (mm2) HR 2.01a 11.25a 7.05a 28.89c 32.93a MR 0.89b 6.22b 4.55b 36.21b 33.58a SR 0.91b 6.70b 7.14a 41.84a 31.58a 导管数量Number of catheters HR 57a 196a 206a 688c 652a MR 49b 98c 156c 767a 514b SR 54a 134b 183b 756b 635a 导管密度Catheter density (n/mm2) HR 28.36b 17.42b 29.22b 23.81a 19.80a MR 55.06a 15.76b 34.29a 21.18a 15.31b SR 59.34a 20.00a 25.63c 18.07b 20.11a