铵态氮素促进甘薯块根形成的解剖特征及其IbEXP1基因的表达
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王翠娟, 柴沙沙, 史春余, 朱红, 谭中鹏, 季杰, 任国博
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Anatomy characteristics and IbEXP1 gene expression of tuberization under ammonia nitrogen treatment in sweet potato
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WANG Cui-Juan, CHAI Sha-Sha, SHI Chun-Yu, ZHU Hong, TAN Zhong-Peng, JI Jie, REN Guo-Bo
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表4 秧苗栽后7 d幼根根内部结构部分量化指标(2015)
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Table 4 Quantitative indices of young root internal structure in different treatments on the seventh day after planting in 2015
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品种 Variety | 处理 Treatment | 根直径 RD (mm) | 中柱直径 SD (mm) | 原生木质部 数目 PSN | 原生木质部 导管数目 PXCN | 木质化薄壁 细胞数目 LPCN | 中柱占 横截面比例 RSCS (%) | 商薯19 S19 | N0 | 0.92 a | 0.34 a | 5.00 a | 27.00 b | 3.00 c | 11.95 b | AN60 | 1.00 a | 0.38 a | 5.33 a | 83.00 a | 37.00 a | 14.62 a | XN60 | 0.91 a | 0.33 a | 5.00 a | 70.00 a | 23.00 b | 13.37 a | AN180 | 0.77 b | 0.29 b | 5.00 a | 38.00 b | 18.00 b | 14.61 a | XN180 | 0.79 b | 0.27 b | 5.00 a | 37.00 b | 15.00 b | 13.47 a | 济徐23 J23 | N0 | 0.94 a | 0.31 b | 6.00 a | 41.00 b | 3.00 c | 11.11 c | AN60 | 1.09 a | 0.42 a | 6.00 a | 70.00 a | 28.00 a | 15.01 a | XN60 | 0.98 a | 0.37 b | 6.33 a | 62.00 a | 24.00 a | 14.44 a | AN180 | 0.95 a | 0.35 b | 6.00 a | 42.00 b | 9.00 c | 13.77 ab | XN180 | 0.93 a | 0.35 b | 6.00 a | 32.00 c | 18.00 b | 14.36 a |
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