| 苹果树不同部位新梢叶片13C同化物的去向 |
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| 引用本文： | 门永阁,任饴华,许海港,姜,翰,李洪娜 周,乐,魏绍冲,姜远茂.苹果树不同部位新梢叶片13C同化物的去向[J].园艺学报,2014,41(6):1063-1068. |
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| 作者姓名： | 门永阁 任饴华 许海港 姜 翰 李洪娜 周 乐 魏绍冲 姜远茂 |
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| 作者单位： | （山东农业大学园艺科学与工程学院，作物生物学国家重点实验室，山东泰安 271018） |
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| 摘 要： | 以5年生‘天红2号’苹果/SH40/八棱海棠为试材，对其上部、中部和下部新梢叶片进行13C标记处理，研究其产生的13C同化物的运输分配去向。结果表明：新梢的13C自留量（自身叶片 + 自身新梢）以上部新梢中最高，为91.00%，中部新梢中次之，为79.34%，下部新梢中最小，为67.39%；新梢向其它器官提供13C同化物能力大小的顺序为：下部新梢 > 中部新梢 > 上部新梢；其中向根系的13C分配率差异最为显著，由大到小依次为下部新梢 > 中部新梢 > 上部新梢；上部和中部新梢输出的13C同化物均有超过50%分配到地上部，分别为87.42%和59.79%，而仅有12.58%和40.21%分配到地下部，表现为以向地上部运输为主，而下部新梢分配到根系的13C同化物达到了75.53%，以向根系运输为主。
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| 关 键 词： | 苹果 新梢部位 13C同化物 运输 分配 |
| 收稿时间： | 2014-02-17 |
Fate of Different Parts 13C-photoassimilates of Tianhong 2/SH40/Malus robusta |
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| MEN Yong-ge,REN Yi-hua,XU Hai-gang,JIANG Han,LI Hong-na,ZHOU Le,WEI Shao-chong,JIANG Yuan-mao.Fate of Different Parts 13C-photoassimilates of Tianhong 2/SH40/Malus robusta[J].Acta Horticulturae Sinica,2014,41(6):1063-1068. |
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| Authors: | MEN Yong-ge REN Yi-hua XU Hai-gang JIANG Han LI Hong-na ZHOU Le WEI Shao-chong JIANG Yuan-mao |
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| Institution: | （State Key Laboratory of Crop Biology，College of Horticulture Science and Engineering，Shandong Agricultural University，Tai’an，Shandong 271018，China） |
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| Abstract: | The 5-year-old apple trees（Tianhong 2/SH40/Malus robusta Rehd.）were divided into three parts（the upper part，the middle part and the lower part），and those three parts（new shoot）were labeled with 13C to study about the fate of 13C-assimilates in plant. The results showed that the self-retention of the upper new shoot was the highest（91.00%），that of the middle new shoot was in the second place（79.34%），that of the lower new shoot was the lowest（67.39%）. The supply capacity of those three parts to other organs was manifested as the lower part > the middle part > the upper part. The distribution of root was very obvious，manifested as the lower part > the middle part > the upper part. More than 50% 13C-assimilates was allocated to aboveground in the trees that were labeled upper new shoot and middle new shoot，were 87.42% and 59.79%，respectively，only 12.58% and 40.21% were transported to root，mainly transported to above-ground. The distribution of 13C-assimilates in root was labeled lower parts plants reached 75.53%，mainly transported to underground（root）. |
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| Keywords: | apple different parts of new shoot 13C-assimilate transport distribution |
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