新疆农业科学 ›› 2019, Vol. 56 ›› Issue (8): 1397-1407.DOI: 10.6048/j.issn.1001-4330.2019.08.004

• 作物遗传育种·物质资源·分子生物学 • 上一篇    下一篇

不同土壤深度棉花根系形态变化规律及与矿质元素的关系

窦海涛1, 雷长英1, 李霞飞1, 贾梦梦1, 向导2, 张亚黎1, 张旺锋1   

  1. 1.石河子大学农学院/新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子 832003;
    2.新疆乌兰乌苏农业气象试验站,新疆石河子 832003
  • 收稿日期:2019-05-29 出版日期:2019-08-20 发布日期:2019-10-10
  • 通信作者: 张旺锋(1965-),男,甘肃静宁人,教授,博士生导师,研究方向为作物产量与品质形成生理生态,(E-mail)zhwf_agr@shzu.edu.com
  • 作者简介:窦海涛(1993-),男,新疆塔城人,硕士研究生,研究方向为作物高产优质高效栽培,(E-mail)taohaidou@126.com
  • 基金资助:
    国家自然科学基金(U1203283)

Changes of Root Morphology and Its Relationship with Mineral Elements in Different Soil Depths of Cotton (Gossypium hirsutum L.)

DOU Hai-tao1, LEI Chang-ying1, LI Xia-fei1, JIA Meng-meng1, XIANG Dao2, ZHANG Ya-li1, ZHANG Wang-feng1   

  1. 1. Key Laboratory of Oasis Eco-agriculture of Xinjiang Production and Construction Corps / College of Agronomy, Shihezi University Shihezi Xinjiang 832003, China;
    2. Wulanwusu Agro-Meteorological Experiment Station of Xinjiang, Shihezi Xinjiang 832003, China
  • Received:2019-05-29 Online:2019-08-20 Published:2019-10-10
  • Correspondence author: ZHANG Wang-feng(1965-), male, native place: Jingning, Gansu. doctoral student, professor. Reserch area: Physiol-ogy and Ecology of crop yield and quality formation,( E-mail) zhwf_agr@ shzu. edu. com
  • Supported by:
    Supported by the National Natural Science Foundation of China (U1203283)

摘要: 目的】研究不同土壤深度下棉花根系形态变化规律,分析与矿质元素的响应关系,及矿质元素对根系形态的调控作用,为构建合理棉花根系构型提供理论依据。【方法】测试37份棉花品种的根系长度、根系表面积、根系体积、根系生物量、根系氮、磷、钾元素,根据公式计算比根长、比根面积、比根体积、根系密度,研究矿质元素对根系形态的调控关系。【结果】位于0~10 cm土壤中,由于氮素作用,促使比根长、比根面积、比根体积增加,轻微抑制根系密度生长。在10~20 cm土壤中,氮素促使比根长、比根面积增加,抑制根系密度的生长及比根体积的增加。在20~30 cm土壤中,氮素对比根长、比根面积、根系密度的作用效果不明显,而对比根体积表现为负相关关系。在30~50 cm土壤中,氮素对比根长、比根面积、比根体积、根系密度表现为正相关关系。在50~60 cm的土壤中,比根长、比根面积、比根体积、根系密度表现为负相关关系。第一主成分与氮素、比根长、比根面积、比根体积的相关性较高,第二主成分主要与根系密度的相关性较高,第三主成分主要与磷、钾元素的相关性较高。磷、钾元素与第一主成分的相关性较高,氮素与第三主成分的相关性较高。【结论】根系在不同土壤深度下,比根长、比根面积、比根体积逐渐增大,单位质量根系含氮量不断减少。根系形态性状主要受氮素调控,磷、钾元素对根系形态性状的调控作用较小。

关键词: 棉花; 根系形态; 矿质元素

Abstract: Objective】 To study the changes of cotton root morphology and the response to mineral elements in different soil depths and analyze the regulation of mineral elements on root morphology in the hope of providing theoretical support for the construction of reasonable cotton root configuration. 【Method】 The root length, root surface area, root volume, root biomass, root nitrogen, phosphorus, potassium,calcium, magnesium and sulfur of 37 cotton varieties were tested, and according to the formula, the specific root length, specific root area, root volume and root density were calculated. Finally, the regulation and control relationship between mineral elements and root morphology was studied. 【Result】In 0 - 10 cm soil, due to the action of nitrogen, the specific root length, specific root area and specific root volume increased, and the growth of root density was slightly inhibited. In 10-20 cm soil, nitrogen promoted the specific root length, increased the specific root area, and inhibited the growth of root density and the increase of specific root volume. In 20-30 cm soil, the effect of nitrogen on root length, specific root area and root density was not obvious, but the contrastive root volume showed a negative correlation. Nitrogen showed a positive correlation with root length, specific root area, specific root volume, and root density in 30-50 cm soil. In the soil of 50-60 cm, there was a negative correlation between root length, specific root area, and specific root volume and root density. Principal component analysis showed that the correlation between the first principal component and nitrogen element, specific root length, specific root area, and specific volume was higher. The second principal component was more correlated with root density, and the third principal component was mainly related to phosphorus. The correlation between potassium and potassium was high. In addition, the correlation between the phosphorus and potassium elements was higher than that of the first main component, and the correlation between the nitrogen element and the third main component was high. 【Conclusion】 Under different soil depths, the root length, specific root area and specific root volume gradually increased, and the nitrogen content per unit mass root decreased continuously. The root morphological traits were mainly regulated by nitrogen, and the phosphoric and potassium elements had little effect on the regulation of root morphological traits.

Key words: cotton; root morphology; mineral elements

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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