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作物学报 ›› 2020, Vol. 46 ›› Issue (3): 462-471.doi: 10.3724/SP.J.1006.2020.94038

• 研究简报 • 上一篇    

改善土壤通气性促进甘薯源库间光合产物运转的原因解析

刘永晨1,司成成2,柳洪鹃1,*(),张彬彬1,史春余1,*()   

  1. 1. 山东农业大学农学院 / 作物生物学国家重点实验室, 山东泰安 271018
    2. 海南大学园艺学院, 海南海口 570228
  • 收稿日期:2019-03-08 接受日期:2019-09-26 出版日期:2020-03-12 网络出版日期:2019-10-12
  • 通讯作者: 柳洪鹃,史春余
  • 作者简介:E-mail: liuyongchensdau@163.com
  • 基金资助:
    本研究由国家自然科学基金项目(31371577);本研究由国家自然科学基金项目(31701357);山东省薯类产业创新团队首席专家项目资助(SDAIT-16-01)

Reason exploration for soil aeration promoting photosynthate transportation between sink and source in sweet potato

Yong-Chen LIU1,Cheng-Cheng SI2,Hong-Juan LIU1,*(),Bin-Bin ZHANG1,Chun-Yu SHI1,*()   

  1. 1. College of Agronomy, Shandong Agricultural University / State Key Laboratory of Crop Biology, Tai’an 271018, Shandong, China;
    2. College of Horticulture and Landscape Architecture, Hainan University, Haikou 570228, Hainan, China
  • Received:2019-03-08 Accepted:2019-09-26 Published:2020-03-12 Published online:2019-10-12
  • Contact: Hong-Juan LIU,Chun-Yu SHI
  • Supported by:
    This study was supported by the National Natural Science Foundation of China(31371577);This study was supported by the National Natural Science Foundation of China(31701357);the Potato Innovation Program for Chief Expert of Shandong Province(SDAIT-16-01)

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摘要：

为了明确土壤通气性对甘薯源库间光合产物运转的调控机制, 本研究以淀粉型品种商薯19和济徐23为试验材料, 设置疏松、对照和紧实3个处理进行大田试验, 研究结果表明, 与对照处理相比, 疏松处理显著提高2个品种的块根产量和经济系数, 2年平均增幅分别为27.03%~38.74%和6.30%~13.05%, 紧实处理则显著降低2个品种的块根产量和经济系数, 2年平均降幅分别为17.87%~15.92%和10.83%~15.63%。功能叶 13C标记结果显示, 疏松处理显著提高块根中光合产物的输入效率。疏松处理显著提高块根中蔗糖和淀粉含量, 显著降低地上部器官中淀粉含量和茎中尤其是茎的中下部中蔗糖含量; 紧实处理则显著降低块根中蔗糖和淀粉含量, 而显著提高地上部器官蔗糖和淀粉含量, 且茎中下部蔗糖含量增幅较大。疏松处理显著降低50~150 d茎基部与茎顶部间和茎基部与块根间的蔗糖含量差; 紧实处理则显著提高茎基部与茎顶部间和茎基部与块根间的蔗糖含量差, 且茎基部与块根间蔗糖含量差的变幅大于茎基部与茎顶部间的蔗糖含量差。相关分析表明, 茎基部与块根间、茎基部与茎顶部间蔗糖含量差与块根蔗糖和淀粉含量呈极显著负相关。说明改善土壤通气性可促进茎基部光合产物向块根的运转, 提高块根中碳水化合物含量, 增加块根产量。

关键词: 甘薯, 土壤通气性, 块根产量, 光合产物, 运转

Abstract:

Field experiments were performed using the varieties of starchy sweet potato Shangshu 19 and Jixu 23 with three treatments including loose soil, control soil and compact soil, to clarify the regulatory mechanism of soil compaction on transportation of photosynthates between sink and source of sweet potato. Compared with control treatment, storage root yield and economic coefficient of loose soil treatment were significantly increased by 27.03%-38.74% and 6.30%-13.05% in two years, respectively, while those of compact soil treatment significantly decreased by 17.87%-15.92% and 10.83%-15.63%, respectively. The 13C labeling results of functional leaves showed that loose treatment significantly improved the import efficiency of photosynthate in storage roots. Loose soil treatment significantly increased sucrose and starch contents in storage roots, but significantly reduced starch content in aboveground organs, especially in lower-middle position of stem. Compact soil treatment significantly decreased sucrose and starch contents in storage roots, but significantly increased starch and sucrose contents in aboveground organs especially in lower-middle position of stem. Both difference of sucrose content between stem base and stem top and between stem base and storage root at 50-150 days after planting in loose treatment were significantly decreased. While, significantly increased in compact treatment. The variation range of sucrose content difference between stem base and storage root was larger than between stem base and stem top. There was a very significantly negative correlation between the sucrose content difference of stem base and storage root, and the sucrose and starch content in storage root. Improvement of soil aeration, can promote the transportation of photosynthates from stem base to storage root, increase carbohydrate content in storage root and enhance storage root yield.

Key words: sweet potato, soil aeration, storage root yield, photosynthate, transportation

图1

主茎各部位划分模式图"

表1

栽秧期土壤物理性状"

年份Year 处理Treatment 土层深度
Soil layer
(cm)		 土壤紧实度
Soil volume weight (kPa)		 土壤容重
Soil
compactness
(g cm-3)		 土壤比重
Soil specific gravity
(g cm-3)		 总孔隙度
Total
porosity
(%)		 毛管孔隙度
Capillary porosity (%)		 非毛管孔隙度
Non-capillary porosity
(%)
2017 SS 5-10 126.49 1.26 2.58 51.35 24.86 26.49
15-20 224.23 1.30 2.57 49.35 25.50 23.85
CK 5-10 301.16 1.33 2.64 49.81 24.15 25.66
15-20 464.12 1.39 2.73 49.19 31.68 17.51
JS 5-10 541.63 1.46 2.73 46.38 31.78 14.60
15-20 927.74 1.49 2.75 45.71 38.30 7.41
2018 SS 5-10 143.17 1.25 2.57 50.69 24.62 26.07
15-20 174.17 1.29 2.58 49.62 25.46 24.16
CK 5-10 267.91 1.33 2.65 48.92 25.30 23.62
15-20 508.06 1.38 2.73 48.65 30.14 18.51
JS 5-10 826.07 1.47 2.74 46.66 31.21 15.45
15-20 1230.60 1.49 2.75 45.83 36.91 8.92

表2

块根产量及经济系数"

年份Year 品种
Variety		 处理Treatment 单株结薯数
Number of storage root (lump plant-1)		 单薯重
Fresh weight
(g lump-1)		 块根产量
Storage root yield (kg hm-2)		 经济系数
Economic coefficient
(%)
2017 商薯19
Shangshu 19		 SS 4.56 b 244.31 a 55660.87 a 70.47 a
CK 4.42 b 214.53 b 47280.21 b 65.90 b
JS 5.72 a 141.49 c 40206.75 c 61.79 c
济徐23
Jixu 23		 SS 3.58 b 315.09 a 55913.79 a 79.61 a
CK 3.47 b 274.83 b 46897.60 b 75.34 b
JS 4.39 a 188.87 c 41110.64 c 63.72 c
2018 商薯19
Shangshu 19		 SS 3.99 b 296.34 a 59113.79 a 80.13 a
CK 3.88 b 223.33 b 43361.92 b 67.57 b
JS 4.62 a 148.89 c 34353.97 c 56.35 c
济徐23
Jixu 23		 SS 2.99 b 363.18 a 54170.01 a 89.68 a
CK 2.91 b 243.25 b 34227.44 b 83.42 b
JS 3.56 a 154.82 c 27550.52 c 71.19 c

图2

标记叶、主茎和块根中13C丰度变化特点(2017年) 缩写同表1。"

表3

块根快速膨大期各器官内13C同化物的分配率(%, 2017年, 品种为商薯19)"

处理
Treatment		 块根
Storage root		 侧茎
Side stem		 侧叶和生长点
Side leaf and growing point		 主茎
Main stem		 标叶
Labeled leaf		 标茎
Labeled stem		 标柄
Labeled petiole
SS 53.62 15.57 27.18 2.91 0.39 0.19 0.15
CK 49.69 17.24 27.63 4.07 0.82 0.28 0.26
JS 44.75 17.47 31.12 5.17 0.85 0.27 0.38

表4

不同器官蔗糖含量"

年份
Year		 器官
Organ		 品种
Variety		 处理
Treatment		 栽后天数 Days after planting (d)
50 70 90 110 130 150
2017 叶片 商薯19 SS 3.22 a 4.27 a 4.39 a 5.86 a 6.74 a 5.11 a
Leaf Shangshu 19 CK 1.87 b 2.96 b 3.37 b 5.22 b 5.58 b 4.76 b
JS 1.53 c 2.74 b 3.01 c 4.70 c 4.81 c 4.41 c
济徐23 SS 3.75 a 4.18 a 4.25 a 5.61 a 6.94 a 4.60 a
Jixu 23 CK 2.91 b 3.33 b 3.51 b 4.59 b 5.70 b 4.19 b
JS 2.04 c 2.85 c 3.36 c 4.31 c 4.95 c 4.02 b
叶柄 商薯19 SS 10.31 a 10.89 a 12.50 a 13.04 a 13.23 a 10.76 a
Petiole Shangshu 19 CK 6.80 b 7.94 b 7.97 b 8.57 b 8.69 b 6.53 b
JS 5.88 c 6.93 c 7.50 c 7.85 c 7.91 b 5.78 c
济徐23 SS 10.24 a 10.61 a 10.35 a 11.56 a 12.55 a 10.30 a
Jixu 23 CK 7.48 b 7.64 b 7.93 b 8.33 b 8.55 b 6.83 b
JS 5.45 c 6.01 c 7.06 c 8.01 b 8.34 b 6.04 c
茎蔓 商薯19 SS 3.82 c 5.37 c 7.01 c 7.31 c 7.82 c 5.77 c
Stem Shangshu 19 CK 6.48 b 7.14 b 8.26 b 8.75 b 9.47 b 8.07 b
JS 7.84 a 8.48 a 9.46 a 9.67 a 9.73 a 9.16 a
济徐23 SS 4.62 c 5.52 c 5.88 c 6.62 c 8.00 c 6.65 c
Jixu 23 CK 6.11 b 6.57 b 7.82 b 8.91 b 9.48 b 9.21 b
JS 7.32 a 8.01 a 9.21 a 9.89 a 10.20 a 9.98 a
块根 商薯19 SS 7.40 a 7.74 a 8.31 a 9.10 a 11.26 a 8.92 a
Storage root Shangshu 19 CK 6.04 b 6.19 b 6.49 b 6.70 b 9.30 b 6.95 b
JS 5.50 c 6.01 c 5.81 c 6.33 c 8.96 c 6.42 c
济徐23 SS 7.35 a 8.62 a 9.31 a 9.26 a 10.82 a 9.20 a
Jixu 23 CK 5.70 b 6.48 b 7.41 b 7.44 b 9.08 b 6.82 b
JS 5.13 c 5.76 c 6.73 c 6.98 c 9.59 c 5.81 c
2018 叶片 商薯19 SS 2.97 a 3.74 a 4.57 a 4.68 a 3.59 a 4.82 a
Leaf Shangshu 19 CK 1.85 b 2.88 b 3.64 b 3.96 b 4.74 b 4.43 b
JS 1.45 c 2.29 c 3.03 c 3.46 c 3.81 c 3.39 c
济徐23 SS 2.32 a 3.48 a 4.05 a 4.35 a 4.88 a 4.62 a
Jixu 23 CK 1.88 b 2.80 b 3.53 b 3.69 b 4.03 b 3.54 b
JS 1.08 c 2.43 c 2.87 c 3.17 c 3.57 c 3.54 b
叶柄 商薯19 SS 8.26 a 9.58 a 13.00 a 14.54 a 14.93 a 13.55 a
Petiole Shangshu 19 CK 6.80 b 7.40 b 9.03 b 10.58 b 11.89 b 10.62 b
JS 5.97 c 6.42 c 8.23 c 8.62 c 8.87 c 10.45 b
济徐23 SS 9.10 a 9.94 a 14.07 a 14.25 a 15.25 a 12.44 a
Jixu 23 CK 7.29 b 7.96 b 9.83 b 11.20 b 10.89 b 10.10 b
JS 5.88 c 7.33 c 8.34 c 8.60 c 8.38 c 9.99 b
茎蔓 商薯19 SS 4.65 c 5.71 c 7.07 c 7.49 c 8.33 c 7.25 c
Stem Shangshu 19 CK 6.02 b 7.75 b 9.17 b 9.27 b 10.35 b 9.10 b
JS 7.11 a 9.17 a 10.42 a 10.74 a 11.22 a 10.52 a
济徐23 SS 4.98 c 6.00 c 6.76 c 7.18 c 8.34 c 7.06 c
Jixu 23 CK 6.61 b 6.97 b 8.84 b 9.19 b 10.29 b 8.50 b
JS 7.58 a 9.69 a 10.58 a 11.16 a 11.65 a 9.83 a
块根 商薯19 SS 5.60 a 7.29 a 9.85 a 11.02 a 12.72 a 11.49 a
Storage root Shangshu 19 CK 4.28 b 5.14 b 6.03 b 7.68 b 8.36 b 7.25 b
JS 3.57 c 4.15 c 4.66 c 6.04 c 6.24 c 5.96 c
济徐23 SS 5.19 a 7.29 a 10.24 a 11.78 a 12.93 a 11.99 a
Jixu 23 CK 3.68 b 4.99 b 6.16 b 7.05 b 7.75 b 7.00 b
JS 3.20 c 4.13 c 5.14 c 5.85 c 6.49 c 5.42 c

表5

不同器官淀粉含量"

年份
Year		 器官
Organ		 品种
Variety		 处理
Treatment		 栽后天数 Days after planting (d)
50 70 90 110 130 150
2017 叶片 商薯19 SS 4.29 a 5.27 a 7.11 c 9.05 c 9.96 c 9.52 c
Leaf Shangshu 19 CK 3.64 b 4.64 b 8.96 b 11.38 b 11.60 b 10.84 b
JS 3.44 c 4.59 b 9.59 a 12.87 a 14.28 a 12.07 a
济徐23 SS 5.48 a 6.32 a 7.37 b 8.89 b 10.16 c 8.87 c
Jixu 23 CK 4.63 b 5.53 b 9.94 a 11.99 a 12.21 b 11.81 b
JS 4.32 c 5.19 c 10.39 a 12.15 a 13.71 a 12.24 a
叶柄 商薯19 SS 6.16 a 7.21 c 9.33 c 10.69 b 10.86 c 8.17 c
Petiole Shangshu 19 CK 5.09 b 7.94 b 10.95 b 12.14 a 12.50 b 9.88 b
JS 4.40 c 9.27 a 12.33 a 12.43 a 13.90 a 11.51 a
济徐23 SS 7.64 a 7.82 c 9.11 c 9.70 c 10.14 c 7.45 c
Jixu 23 CK 6.11 b 8.45 b 10.56 b 11.09 b 11.73 b 9.36 b
JS 5.58 c 9.69 a 12.15 a 12.38 a 13.81 a 11.13 a
茎蔓 商薯19 SS 16.01 c 16.85 c 19.44 c 15.54 c 17.06 c 12.86 b
Stem Shangshu 19 CK 18.37 b 19.05 b 21.61 b 19.02 b 19.75 b 13.34 a
JS 19.81 a 20.71 a 22.68 a 20.20 a 21.80 a 13.39 a
济徐23 SS 15.45 c 16.32 c 19.08 c 16.32 c 17.15 c 13.81 c
Jixu 23 CK 18.81 b 19.17 b 21.62 b 18.33 b 18.79 b 14.33 b
JS 20.69 a 21.52 a 23.85 a 19.52 a 20.61 a 15.68 a
块根 商薯19 SS 38.74 a 40.78 a 61.29 a 67.69 a 79.46 a 88.66 a
Storage root Shangshu 19 CK 24.75 b 29.61 b 44.92 b 58.35 b 66.81 b 71.28 b
JS 22.24 c 25.92 c 38.34 c 51.25 c 61.07 c 64.95 c
济徐23 SS 35.49 a 38.6 a 58.22 a 68.65 a 81.63 a 87.81 a
Jixu 23 CK 26.98 b 30.86 b 45.86 b 59.61 b 65.61 b 69.75 b
JS 24.31 c 27.9 c 38.79 c 51.04 c 58.05 c 60.52 c
2018 叶片 商薯19 SS 2.21 a 3.83 a 5.61 a 6.39 c 8.05 c 8.25 c
Leaf Shangshu 19 CK 1.72 b 3.04 b 5.62 a 7.25 b 10.16 b 9.88 b
JS 1.52 c 2.69 c 5.63 a 8.33 a 11.71 a 10.47 a
济徐23 SS 2.02 a 4.06 a 5.11 a 5.92 c 8.11 c 7.82 c
Jixu 23 CK 1.72 b 3.31 b 5.27 a 7.45 b 9.60 b 8.28 b
JS 1.44 c 2.32 c 5.38 a 8.30 a 11.17 c 10.19 a
叶柄 商薯19 SS 5.06 a 6.70 a 7.70 c 10.97 c 11.56 c 10.22 c
Petiole Shangshu 19 CK 4.33 b 6.52 ab 8.70 b 13.42 b 14.64 b 12.78 b
JS 3.74 c 6.20 b 10.07 a 15.33 a 16.02 a 14.43 a
济徐23 SS 5.79 a 6.57 a 8.26 c 11.46 c 11.23 c 10.25 c
Jixu 23 CK 3.96 b 6.47 a 10.21 b 14.00 b 15.29 b 12.41 b
JS 3.40 c 6.43 a 11.32 c 15.19 a 16.91 a 14.59 a
茎蔓 商薯19 SS 12.85 c 13.90 c 14.98 c 15.66 c 16.36 c 15.13 c
Stem Shangshu 19 CK 14.13 b 15.34 b 17.60 b 18.34 b 19.42 b 16.90 b
JS 15.23 a 17.22 a 19.09 a 20.34 a 22.25 a 18.44 a
济徐23 SS 11.74 c 12.41 c 13.87 c 14.86 c 15.46 c 12.48 c
Jixu 23 CK 13.23 b 14.74 b 15.30 b 16.98 b 17.45 b 13.92 b
JS 14.92 a 16.70 a 18.78 a 21.23 a 22.68 a 17.69 a
块根 商薯19 SS 34.04 a 41.80 a 60.46 a 66.33 a 76.01 a 83.07 a
Storage root Shangshu 19 CK 23.52 b 32.00 b 45.61 b 47.44 b 58.76 b 70.06 b
JS 20.72 c 27.10 c 40.10 c 41.89 c 50.12 c 60.51 c
济徐23 SS 37.92 a 44.20 a 62.13 a 65.75 a 75.70 a 86.02 a
Jixu 23 CK 22.92 b 28.36 b 42.12 b 47.90 b 58.03 b 65.40 b
JS 19.68 c 25.07 c 34.60 c 41.35 c 50.74 c 56.93 c

表6

茎不同部位蔗糖和淀粉含量(%, 2018年)"

项目 Item 部位
Position		 品种
Variety		 处理
Treatment		 栽后天数 Days after planting (d)
50 70 90 110 130 150
蔗糖Sucrose 茎顶部
Stem top		 商薯19 SS 3.07 a 4.45 a 5.03 a 5.36 a 5.87 a 5.40 a
Shangshu 19 CK 1.64 b 3.25 b 4.33 b 4.74 b 5.37 b 4.88 b
JS 1.19 c 2.46 c 3.85 c 4.25 c 4.71 c 4.48 c
济徐23 SS 2.50 a 4.61 a 5.13 a 5.72 a 6.25 a 5.26 a
Jixu 23 CK 2.07 b 3.18 b 4.47 b 5.10 b 5.43 b 4.36 b
JS 1.70 c 2.49 c 3.91 c 4.73 c 4.74 c 4.00 c
茎中部
Stem middle		 商薯19 SS 2.60 c 2.87 c 3.35 c 4.07 c 5.58 c 4.44 c
Shangshu 19 CK 3.76 b 3.24 b 4.12 b 5.30 b 6.60 b 5.82 b
JS 5.13 a 4.37 a 5.69 a 6.71 a 8.24 a 6.75 a
济徐23 SS 1.69 c 2.48 c 3.33 c 4.12 c 5.45 c 3.93 c
Jixu 23 CK 2.08 b 3.14 b 4.01 b 5.32 b 6.26 b 4.97 b
JS 4.71 a 4.54 a 5.33 a 7.01 a 7.96 a 6.25 a
茎基部
Stem base		 商薯19 SS 8.75 c 9.58 c 10.10 c 10.41 c 11.34 c 10.27 c
Shangshu 19 CK 9.87 b 11.50 b 12.84 b 11.69 b 12.51 b 11.51 b
JS 10.91 a 13.32 a 14.88 a 14.47 a 15.47 a 13.79 a
济徐23 SS 8.30 c 9.53 c 9.93 c 9.94 c 10.89 c 9.52 c
Jixu 23 CK 9.93 b 11.20 b 12.10 b 11.33 b 12.36 b 11.12 b
JS 11.40 a 13.41 a 14.49 a 14.27 a 14.86 a 13.35 a
淀粉Starch 茎顶部
Stem top		 商薯19 SS 11.93 c 13.12 c 14.53 c 15.40 c 16.17 c 14.46 c
Shangshu 19 CK 13.17 b 14.49 b 16.82 b 17.79 b 18.17 b 16.50 b
JS 14.53 a 16.36 a 18.79 a 20.09 a 21.11 a 18.12 a
济徐23 SS 11.99 c 12.26 c 13.24 c 15.02 c 15.58 c 11.86 c
Jixu 23 CK 13.07 b 14.66 b 15.30 b 16.30 b 17.41 b 13.19 b
JS 14.39 a 16.54 a 18.36 a 19.53 a 20.47 a 16.65 a
茎中部
Stem middle		 商薯19 SS 14.11 c 14.89 c 15.72 c 17.17 c 18.19 c 17.09 c
Shangshu 19 CK 15.37 b 17.59 b 17.89 b 19.56 b 20.47 b 19.96 b
JS 17.62 a 19.00 a 21.05 a 21.96 a 22.71 a 21.56 a
济徐23 SS 13.88 c 14.56 c 15.29 c 16.38 c 17.31 c 15.35 c
Jixu 23 CK 16.21 b 18.18 b 19.01 b 19.62 b 20.54 b 17.76 b
JS 18.28 a 20.07 a 20.85 a 22.27 a 22.52 a 20.05 a
茎基部
Stem base		 商薯19 SS 18.73 c 19.73 c 21.16 c 21.69 c 22.23 c 21.17 c
Shangshu 19 CK 22.32 23.34 c 24.36 c 24.29 c 25.49 c 24.62 b
JS 24.69 a 25.57 a 26.47 a 27.40 a 28.84 a 27.85 a
济徐23 SS 17.56 c 19.59 c 50.80 c 21.22 c 21.92 c 20.17 c
Jixu 23 CK 21.34 b 23.16 b 23.88 b 23.80 b 25.11 b 23.26 b
JS 23.47 a 25.11 a 26.83 a 27.75 a 29.47 a 28.09 a

表7

不同器官间蔗糖含量差"

年份Year 栽后天数Days after planting (d) 品种
Variety		 处理Treatment 柄-叶
Petiole-
Leaf		 柄-茎顶部Petiole-
Stem top		 茎基部-茎顶部
Stem base-
Stem top		 茎基部-块根Stem top-
Storage root
2017 90 商薯19 SS 96.03 a 55.62 a 10.34 c -5.95 c
Shangshu 19 CK 81.13 b 15.55 c 31.08 b 35.90 b
JS 85.44 b 25.39 b 60.84 a 60.84 a
济徐23 SS 83.56 a 35.90 a -2.53 c -28.05 c
Jixu 23 CK 77.27 b 22.44 b 44.57 b 29.36 b
JS 71.02 c 26.28 b 63.22 a 43.12 a
110 商薯19 SS 75.98 a 54.81 a -1.36 c -21.55 c
Shangshu 19 CK 48.59 b 28.38 b 30.64 b 26.76 b
JS 50.20 b 32.25 b 54.62 a 44.28 a
济徐23 SS 69.31 a 34.60 a -22.53 c -35.03 c
Jixu 23 CK 57.89 b 10.35 c 15.48 b 16.41 b
JS 60.06 b 17.07 b 45.18 a 41.99 a
130 商薯19 SS 65.00 a 41.98 a -36.07 c -60.95 c
Shangshu 19 CK 43.59 c 22.68 c 25.80 b -3.61 b
JS 48.74 b 27.46 b 44.76 a 5.43 a
济徐23 SS 57.57 a 33.05 a -49.03 c -66.01 c
Jixu 23 CK 40.00 c 19.94 c 18.65 b -7.31 b
JS 51.02 b 29.75 b 38.01 a -5.46 a
2018 90 商薯19 SS 95.99 a 88.36 a 67.04 c 2.56 c
Shangshu 19 CK 84.95 a 70.22 b 99.07 b 72.14 b
JS 92.21 b 72.52 b 117.78 a 104.62 a
济徐23 SS 110.58 a 93.16 a 63.79 c -3.02 c
Jixu 23 CK 94.39 c 75.00 b 92.15 b 65.08 b
JS 97.68 b 72.29 b 114.98 a 95.33 a
110 商薯19 SS 102.48 a 92.27 a 64.18 c -5.68 c
Shangshu 19 CK 91.05 b 76.23 b 84.58 b 41.45 b
JS 85.38 b 68.04 c 109.26 a 82.20 a
济徐23 SS 106.44 a 85.44 a 53.97 c -16.85 c
Jixu 23 CK 100.85 b 74.91 b 75.91 b 46.60 b
JS 92.25 c 58.05 c 100.38 a 83.64 a
130 商薯19 SS 91.07 a 87.05 a 63.50 c -11.47 c
Shangshu 19 CK 85.95 b 75.53 b 79.91 b 39.79 b
JS 79.78 c 61.30 c 106.66 a 84.97 a
济徐23 SS 103.02 a 83.76 a 54.22 c -17.08 c
Jixu 23 CK 92.04 b 67.01 b 77.99 b 45.90 b
JS 80.44 c 55.32 c 103.25 a 78.36 a

表8

甘薯器官间蔗糖含量差与块根碳水化合物含量的相关性分析"

品种Variety 相邻器官间蔗糖含量差
Sucrose content differences between adjacent organ		 与块根蔗糖含量的相关系数Correlation coefficient of sucrose
content between adjacent organs with sucrose content in storage root		 与块根淀粉含量的相关系数
Correlation coefficient of sucrose content between adjacent organs with starch content
in storage root
商薯19
Shangshu 19		 柄-叶 Petiole-Leaf -0.274 -0.679**
柄-茎顶部 Petiole-Stem top -0.308 -0.732**
茎基部-茎顶部 Stem base-Stem top -0.758** -0.934**
茎基部-块根 Stem top-Storage roots -0.924** -0.882**
济徐23
Jixu 23		 柄-叶 Petiole-Leaf -0.210 -0.582*
柄-茎顶部 Petiole-Stem top -0.243 -0.651**
茎基部-茎顶部 Stem base-Stem top -0.839** -0.933**
茎基部-块根 Stem top-Storage roots -0.913** -0.856**
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