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广西冬作区不同马铃薯品种(系)品质比较
与综合评价
作者: 闫海锋1  娟2 李韦柳1  军1 邓英毅3 * 韦民政1 
唐秀桦1
 覃维治1  虚1 * 
单位: (1 广西农业科学院 经济作物研究所 南宁 530007 2 广西农业科学院 生物技术研究所 南宁 530007  
关键词: 马铃薯 品质 隶属函数 综合评价 冬作区 广西 
分类号:S532
出版年,卷(期):页码:2017,48(2):246-251
摘要:

【目的】对广西冬作区不同马铃薯品种(系)的主要品质进行对比及综合评价,为筛选适宜不同用途且品质优良的马铃薯品种(系)提供参考依据。【方法】测定分析25份马铃薯品种(系)(P1~P25)的淀粉、维生素C(Vc)和还原糖含量及干物率,并利用隶属函数法对其进行综合评价。【结果】25份马铃薯材料的淀粉含量为6.08%~14.60%,还原糖含量为0.32%~1.86%,Vc含量为1.77%~26.96%,干物率为12.85%~20.45%。其中P16、P8、P22和P7的淀粉含量较高,P11和P24的还原糖含量较低,P19、P17、P7、P4、P14和P1的Vc含量较高,P19和P22的干物率较高。各材料按平均隶属函数值排序为:P22>P11>P1>P19>P24>P8>P7>P17>P3>P14>P4>P13>P21>P16>P5>P25>P20>P2>P18>P10>P9>P15>P12>P6>P23。利用总隶属函数值进行的系统聚类分析可将供试材料分为三大类,其中第一类材料有6份(P1、 P8、P11、P19、P22和P24),淀粉和Vc含量高、干物率较高,还原糖含量较低,综合品质较优;第二类材料有10份,淀粉、Vc含量和干物率均适中,还原糖含量较低,综合品质居中;第三类材料有9份,淀粉和Vc含量及干物率均较低,还原糖含量较高,综合品质居下。【结论】从25份马铃薯材料中筛选出6份综合品质性状较优的品种(系),包括1份优良菜用种质,1份加工和菜用兼用种质,2份适宜进行薯片和薯条加工的种质和2份适宜进行淀粉加工的种质。

【Objective】Quality characters of potato varieties(lines) in winter cropping areas of Guangxi were compared and comprehensively assessed for screening fine quality potato varieties for different applications. 【Method】The contents of starch,vitamin C(Vc),reduced sugar and dry matter rate of twenty-five potato varieties(lines)(P1-P25) were measured and evaluated by subordinative function. 【Result】The starch content of the twenty-five potato materials was 6.08%-14.60%,the content of reduced sugar was 0.32%-1.86%,the content of Vc was 1.77%-26.96%, and the dry matter rate was 12.85%-20.45%. Among all the materials, P16, P8, P22 and P7 had higher starch content; P11 and P24 had lower reduced sugar content; P19, P17, P7, P4, P14 and P1 had higher Vc content; P19 and P22 had higher dry matter rate. The rank for all materials according to average subordinative function value was: P22>P11>P1>P19>P24>P8>P7>P17>P3>P14>P4>P13>P21>P16>P5>P25>P20>P2>P18>P10>P9>P15>P12>P6>P23. According to the results of hierarchical clustering analysis using subordinative function values, all tested materials could be divided into three categories: six materials in the first category(P1, P8, P11, P19, P22 and P24) which enjoyed superior comprehensive quality, such as higher contents of starch, Vc and dry matter rate, and low content of reduced sugar; ten materials in the second category which enjoyed medium comprehensive quality, such as moderate contents of starch, Vc and dry matter rate, and low content of reduced sugar; nine materials in the third category which had inferior comprehensive quality, such as low contents of starch, Vc and dry matter rate, but high content of reduced sugar. 【Conclusion】Six potato varieties(lines) with fine comprehensive quality are screened from twenty-five different potato materials, including one germplasm for vegetable use, one for processing-vege-
table dual purpose, two suitable for potato chips and potato fries processing, and two for starch processing.

基金项目:
国家现代农业产业技术体系广西创新团队建设专项项目(nycytxgxcxtd-03-11-01);南宁市科学研究与技术开发计划项目(20142308);广西农业科学院基本科研业务专项项目(桂农科2013YQ15);广西农业科学院科技发展基金项目(2015JM21)
作者简介:
*为通讯作者:郑虚(1966-),研究员,主要从事马铃薯育种研究工作,E-mail: zhengxu@gxaas.net;邓英毅(1972-),副教授,主要从事园艺植物育种与栽培生理研究工作,E-mail:yingyideng@163.com。闫海锋(1980-),主要从事薯类作物育种研究工作,E-mail:gstsyhf@163.com
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