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当前位置: 首页 > 文章 > 马铃薯块茎性状对块茎损伤的影响 园艺学报 2008,35 (10) 1455-1460
Position: Home > Articles > Analysis of Potato Tuber Characters Impact on Tuber Bruises Acta Horticulturae Sinica 2008,35 (10) 1455-1460

马铃薯块茎性状对块茎损伤的影响

作  者：
张建华;金黎平;谢开云;庞万福;卞春松;段绍光;屈冬玉
单  位：
中国农业科学院蔬菜花卉研究所
关键词：
马铃薯;块茎;损伤;偏最小二乘回归
摘  要：
研究分析了马铃薯块茎本身对块茎损伤影响显著的关键因素,从而为通过改善栽培条件、品种选育和种质创新等减轻马铃薯块茎损伤提供依据。选用损伤性状差异显著的5个品种(系):Desiree、Russet Burbank、春薯4号、9637-83和TD38-2为试验材料,测定其表皮擦伤(SK)、内部损伤(IB)和损伤变色(BR)性状,同时测定块茎硬度等17个块茎指标,并对数据进行偏最小二乘回归分析并建立模型。分析可知:不同块茎指标对表皮擦伤和内部损伤的影响作用相似,与对损伤变色的影响作用差别较大。Ca2+、酪氨酸和绿原酸共同对3种损伤起着较大的正向或负向作用。偏最小二乘回归模型对本研究中多重相关数据的分析结果整体性较强,结论客观合理,回归系数易于解释,从而可为生产和科研提供可靠的理论依据。
译  名：
Analysis of Potato Tuber Characters Impact on Tuber Bruises
作  者：
ZHANG Jian-hua, JIN Li-ping, XIE Kai-yun, PANG Wan-fu, BIAN Chun-song, DUAN Shao-guang, and QU Dong-yu(Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China)
关键词：
potato; tuber; bruises; partial least-squares regression
摘  要：
The potato tuber bruises can be alleviated by breeding new cultivar, improved agronomy and enhanced germplasm based on understanding the key factors affecting bruises. In this research, the cultivars (clones) with prominent difference in bruises, Desiree, Russet Burbank, Chunshu 4, 9637-83 and TD38-2 were chosen as experimental materials. Data were taken for skinning(SK), internal bruise(IB), and browning(BR), as well as for 17 tuber indexes. Correlation analysis was made, and then partial least-squares regression(PLSR) model was established after PLSR analysis. Based on the model, tuber indexes measured had similar impact on both skin bruise and internal damage, but not for discoloration. However, Ca2+, tyrosine and chloregenic acid had remarkable effects on all bruises variables, positively or negatively. It was shown that this model in the research had more advantages, such as stronger integrity, reasonable conclusion, easily explainable regressive parameter, thus it can provide theoretical basis for scientific research and production.

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