| 刘昌敏，王 雨，王 炎，李振宙，周 良，陈庆富，黄小燕，黄凯丰.硼肥调控对甜荞根系形态及产量的影响[J].广东农业科学,2018,45(5):42-46 |
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硼肥调控对甜荞根系形态及产量的影响 |
| Effect of boron regulation on root morphology and yield of common buckwheat |
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| DOI：10.16768/j.issn.1004-874X.2018.05.008 |
| 中文关键词: 甜荞 硼肥 根际土壤营养 根系形态 产量 |
| 英文关键词: common buckwheat boron fertilizer interrhizoic soil nutrition root morphology yield |
| 基金项目:国家自然科学基金（31560358）；贵州省科技支撑计划项目（黔科合支撑[2018]2297 号）；贵州省普
通高等学校荞麦栽培生理及推广特色重点实验室建设项目（黔教合KY 字[2015]328）；贵州省教育厅创新群体重大研
究项目（黔教合KY 字 [2017]033） |
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| 摘要点击次数: 1953 |
| 全文下载次数: 682 |
| 中文摘要: |
| 为了明确叶面硼肥对甜荞根系形态、地上部生长及产量的影响，以高产甜荞品种丰甜1 号为试
验材料，研究不同硼肥处理对其根际土壤营养、根系形态、地上部株型和产量的影响，同时对丰甜1 号地上
部、地下部及产量间的相关性进行了分析。结果表明：硼肥的施用能明显增加丰甜1 号根际土壤速效磷、速
效钾、根系长度、根系表面积和根系体积，明显降低根际土壤有机质的含量和主茎节数、主茎分枝数，对根
际土壤pH 和根系平均直径影响不大。当硼肥用量为24 mg/L 时，甜荞的产量最高，比对照高42.18%。相关
性分析表明：根系长度与根系表面积呈显著正相关，根系表面积与体积呈显著正相关；根系体积与主茎分
枝数呈极显著负相关，与主茎节数和产量呈显著负相关；根系平均直径与主茎节数呈显著负相关；株高与
主茎分枝数呈极显著正相关；主茎分枝数与主茎节数呈显著正相关。 |
| 英文摘要: |
| Effect of spraying leaves with a boron fertilizer of different concentrations on the growth of roots
and plant of low-yield Fengtian 1 common buckwheat were studied. The correlation between aboveground，
underground and yield was analyzed，also. With the spraying，the available phosphorus，available potassium in
rhizosphere soil and root length，root surface area and root volume was increased，while the content of organic matter
in rhizosphere soil and the number of nodes and branches of main stem were significantly decreased. The application
of boron fertilizer had little effect on pH in rhizosphere soil and mean diameter of root of Fengtian 1. When the boron
concentration was at 24 mg/L，the yield of common buckwheat reached the maximum，what increased yield by
42.18% compared to the control. Correlation study showed that there was a significant positive correlation between
root length and root surface area，and there was a significant positive correlation between root surface area and root
volume，and there was a significant negative correlation between the root volume and the number of branches of the
main stem，which had significant negative correlation with the number and yield of the main stem，and there was a
significant negative correlation between root mean diameter and the number of main stem nodes，and there was an
extremely significant positive correlation between plant height and the number of branches in the main stem，and there was a significant positive correlation between the number of branches of main stem and the number of nodes of
main stem. |
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