去花对菊芋干物质和糖分积累与分配的影响

doi:10.11686/cyxb20140118

草业学报 ›› 2014, Vol. 23 ›› Issue (1): 149-157.DOI: 10.11686/cyxb20140118

去花对菊芋干物质和糖分积累与分配的影响

李辉^1，2，许欢欢^1，2，赵耕毛^1，2，梁明祥^1，2*

1.南京农业大学资源与环境科学学院,江苏南京210095
2.江苏省海洋生物学重点实验室,江苏南京210095

收稿日期:2013-02-26 出版日期:2014-02-20 发布日期:2014-02-20
通讯作者: E-mail:liangmx@njau.edu.cn
作者简介:李辉(1988-),男,湖北利川人,硕士。E-mail:lihuihqu@yahoo.cn
基金资助:
国家自然基金(31201842)和863计划(2011AA100209)资助

The effect of defloration on dry matter and sugar accumulation and their distribution profiles in Jerusalem artichoke

LI Hui^1,2,XU Huan-huan^1,2,ZHAO Geng-mao^1,2,LIANG Ming-xiang^1,2

1.College of Resources and Environmental Science,Nanjing Agriculture University,Nanjing 210095,China;
2.Jiangsu Province Key Laboratory of Marine Biology,Nanjing 210095,China

Received:2013-02-26 Online:2014-02-20 Published:2014-02-20

摘要/Abstract

摘要： 本研究以菊芋品种青芋二号为试材,在温室进行全生育期栽培试验,研究了青芋二号干物质和糖分积累分配以及去花处理(摘掉花朵)对青芋二号块茎干物质和糖分含量的影响。结果表明,叶片中主要糖分是还原糖,块茎、茎中主要是非还原糖。青芋二号在开花期时总生物量达到最大值,之后地上部生物量减少,地下部由于此时块茎正处于膨大生长阶段,生物量继续增加。去花处理对青芋二号的块茎生物量有着明显的影响,具体表现为块茎数量增多了39.67%,块茎个头变大了59.46%,块茎干重比未去花的增加22.53%。去花植株相同干重下的块茎组织中的总糖含量与未去花植株相比显著降低但还原糖含量没有差异。通过HPLC-ELSD(高效液相色谱-蒸发光检测仪)检测发现去花处理对糖的成分与含量也有影响,蔗果五糖含量增加了32.47%,更高聚合度的果聚糖有增加的趋势,但是其他糖的含量与对照相比差异不大。

Abstract: The effects of flower removal on biomass change and distribution profiles of sugar in Jerusalem artichoke (Helianthus tuberosus ‘Qingyu No.2’) were studied to provide theoretical support for the utilization of Jerusalem artichoke and further gene regulation in flowering. Leaves mainly accumulated reducing sugar while tubers and stems mainly accumulated non-reducing sugar. Total biomass of Qingyu No.2 in the flowering period reached a maximum and then the aboveground biomass started to decrease while the underground biomass continued to increase. Production of tubers and sugar content were significantly affected by defloration of Qingyu No.2,especially number and size of tubers,which increased 39.67% and 59.46%,respectively. Defloration resulted in higher yields (22.53% more compared with the control). Defloration was observed to reduce the total soluble sugar content but played less of a role in reducing tuber sugar content. The content of 1-Kestose was raised 32.47% but other sugar ingredients were not changed.

中图分类号:

Q949.783.5

李辉，许欢欢，赵耕毛，梁明祥. 去花对菊芋干物质和糖分积累与分配的影响[J]. 草业学报, 2014, 23(1): 149-157.

LI Hui,XU Huan-huan,ZHAO Geng-mao,LIANG Ming-xiang. The effect of defloration on dry matter and sugar accumulation and their distribution profiles in Jerusalem artichoke[J]. Acta Prataculturae Sinica, 2014, 23(1): 149-157.

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去花对菊芋干物质和糖分积累与分配的影响

The effect of defloration on dry matter and sugar accumulation and their distribution profiles in Jerusalem artichoke

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