2018年5月28日 星期一
海南地区种植不同菊芋品种的生长指标和糖分组成分析及适宜品种筛选
Analyses on growth indexes and sugar composition of different cultivars of Helianthus tuberosus planted in Hainan district and suitable cultivar screening
2018年 第27卷 第1期 页码[60-69]
摘要

对种植于海南地区的不同菊芋(Helianthus tuberosus Linn.)品种的生长指标和糖分组成进行比较和分析,并筛选出适宜海南地区种植的菊芋品种。结果表明:随着时间的推移,6个菊芋品种的株高、茎粗、单株地上部干质量、单株根干质量及单株总干质量总体上呈逐渐升高的趋势,而根长的变化趋势各异。10月26日(成熟期),‘泰芋1号’(‘Taiyu No. 1’)的株高和茎粗最高,‘南芋9号’(‘Nanyu No. 9’)的根长以及块茎和茎干的产量、单株鲜质量和含水率最高,‘南芋1号’(‘Nanyu No. 1’)的单株地上部干质量、单株块茎干质量及单株总干质量最高,‘青芋2号’(‘Qingyu No. 2’)的单株根干质量最高。随着时间的推移,6个菊芋品种叶片中可溶性糖含量的变幅相对较小,而茎干中可溶性糖含量则总体上呈逐渐降低的趋势;6个菊芋品种叶片和茎干中还原糖含量的变化趋势各异。10月26日,‘南芋9号’叶片中可溶性糖含量最高,6个菊芋品种间叶片中还原糖含量差异不显著,‘泰芋1号’茎干中可溶性糖和还原糖含量最高;‘南芋1号’、‘南芋9号’、‘泰芋1号’和‘泰芋2号’(‘Taiyu No. 2’)块茎中可溶性糖含量较高,‘青芋2号’、‘泰芋2号’和‘泰芋3号’(‘Taiyu No. 3’)块茎中还原糖含量较高。随着时间的推移,‘南芋1号’、‘南芋9号’和‘青芋2号’叶片和茎干中果糖含量总体上呈逐渐升高的趋势,‘泰芋1号’、‘泰芋2号’和‘泰芋3号’叶片和茎干中果糖含量均呈先降低后升高的趋势;6个菊芋品种叶片中葡萄糖含量总体上呈逐渐升高的趋势,而茎干中葡萄糖含量总体上呈先降低后升高的趋势;6个菊芋品种叶片和茎干中蔗糖含量的变化趋势各异。总体上看,同一时期6个菊芋品种间叶片和茎干中蔗果三糖、蔗果四糖和蔗果五塘含量的差异均不显著。综合研究结果显示:适宜在海南地区种植的菊芋品种为‘南芋1号’和‘南芋9号’。

 

Abstract

The growth indexes and sugar composition of different cultivars of Helianthus tuberosus Linn. planted in Hainan district were compared and analyzed, and H. tuberosus cultivars suitable for planting in Hainan district were screened out. The results show that with prolonging of time, plant height, stem diameter, dry weight of above-ground part per plant, dry weight of root per plant, and total dry weight per plant of six cultivars of H. tuberosus generally increase gradually, while changes of root length show different trends. On October 26 (mature stage), plant height and stem diameter of ‘Taiyu No. 1’ are the highest, root length, and yield, fresh weight per plant and moisture content of tuber and stem of ‘Nanyu No. 9’ are the highest, dry weight of above-ground part per plant, dry weight of tuber per plant, and total dry weight per plant of ‘Nanyu No. 1’ are the highest, and dry weight of root per plant of ‘Qingyu No. 2’ is the highest. With prolonging of time, change ranges of soluble sugar content in leaves of six cultivars of H. tuberosus are relatively small, while soluble sugar content in stems generally decreases gradually. Changes of reducing sugar content in leaves and stems of six cultivars of H. tuberosus show various trends. On October 26, soluble sugar content in leaves of ‘Nanyu No. 9’ is the highest, there is no significant difference in reducing sugar content in leaves among six cultivars of H. tuberosus, and contents of soluble sugar and reducing sugar in stems of ‘Taiyu No. 1’ are the highest; soluble sugar content in tubers of ‘Nanyu No. 1’, ‘Nanyu No. 9’, ‘Taiyu No. 1’, and ‘Taiyu No. 2’ is relatively high, and reducing sugar content in tubers of ‘Qingyu No. 2’, ‘Taiyu No. 2’, and ‘Taiyu No. 3’ is relatively high. With prolonging of time, fructose content in leaves and stems of ‘Nanyu No. 1’, ‘Nanyu No. 9’, and ‘Qingyu No. 2’ generally increases gradually, while that in leaves and stems of ‘Taiyu No. 1’, ‘Taiyu No. 2’, and ‘Taiyu No. 3’ decreases firstly and then increases; glucose content in leaves of six cultivars of H. tuberosus generally increases gradually, while that in stems generally decreases firstly and then increases; changes of sucrose content in leaves and stems of six cultivars of H. tuberosus show different trends. Overall, there is no significant difference in contents of 1-kestose, nystose, and 1F-fructofuranosylnystose in leaves and stems of six cultivars of H. tuberosus at the same time. The comprehensive result shows that cultivars of H. tuberosus suitable for planting in Hainan district are ‘Nanyu No. 1’ and ‘Nanyu No. 9’.
 

关键词菊芋; 热带地区; 生长指标; 糖分组成; 品种筛选
Key wordsHelianthus tuberosus Linn.; tropical area; growth index; sugar composition; cultivar screening
作者陈咏文, 辛邵南, 隆小华, 刘兆普, 刘玲, 高秀美
所在单位南京农业大学资源与环境科学学院 江苏省海洋生物学重点实验室, 江苏 南京 210095
点击量59
基金项目江苏省政策引导类计划(产学研合作)——前瞻性联合研究项目(BY2015071-03; BY2016077-02); 江苏省农业科技自主创新资金项目〔CX(15)1005〕; 南京农业大学基本科研业务费重点项目(KYZ201623; YZ2016-1); 国家重点研发计划(2016YFC0501200)