| 摘要: |
| 【目的】分析河南省柿种质资源叶片中总酚、总黄酮和单宁含量的差异性，并根据成分含量对资源进行评价及分类，初步筛选出高含量优良柿种质。【方法】对来自河南省不同地区的122份柿种质资源进行叶片总酚、总黄酮和单宁含量测定，分析各成分含量的差异性、分布规律和相关性及其在不同地区间的差异性，并根据各成分含量高低进行资源分类与筛选。【结果】河南省柿资源叶片中总酚、总黄酮和单宁含量平均值分别为122.75，81.09和52.15 mg/g，变异系数分别为30.56%，46.85%和27.58%。总酚含量集中分布在103.87～144.25 mg/g，黄酮含量集中分布在54.39～96.93 mg/g，单宁含量集中分布在44.91～60.55 mg/g。不同地区间3种成分含量均存在极显著差异（P<0.01），且3种成分含量在不同地区间的变异程度大小基本一致，即洛阳最高，南阳、豫北地区次之，三门峡、平顶山相对较小。3种成分含量彼此间呈极显著正相关关系（P<0.01），且一元线性回归拟合效果较好。综合评价3种成分含量的高低，可将所有资源分为4大类，从中初步筛选出了14份高含量优良叶用种质。【结论】河南省柿种质资源叶片中总酚、总黄酮和单宁含量变异程度高，具有丰富的多样性，可根据任何1种成分的含量预测另外2种成分含量的高低。 |
| 关键词: 总酚 总黄酮 单宁 柿 种质资源 |
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| 基金项目:国家“十二五”科技计划项目“涩柿种质资源收集评价与新品种选育”（2013BAD14B0502） |
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| Differences in contents of total phenols,flavonoid and tannin in leaves of persimmon germplasms in Henan |
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LIANG Yu-qin,HAN Wei-juan,ZHANG Jia-jia,et al
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| Abstract: |
| 【Objective】The aim of this study was to synthetically assess differences in contents of phenols,flavonoid and tannin in leaves of persimmon germplasms in Henan,classify the germplasms according to contents of components,and select germplasms with high contents.【Method】The phenols,flavonoid and tannin contents in leaves of 122 persimmon germplasms from different regions in Henan were detected.Variation,distribution and correlation of contents of the three components among different regions were analyzed.Then germplasms were clustered and selected according to contents of the components.【Result】The mean contents of phenols,flavonoid and tannin were 122.75,81.09 and 52.15 mg/g with variation coefficients of 30.56%,46.85% and 27.58%,respectively.The contents of phenols,flavonoid and tannin mainly distributed at 103.87-144.25 mg/g,54.39-96.93 mg/g,and 44.91-60.55 mg/g,respectively.There was highly significantly difference in the three components among different regions (P<0.01) with the same decreasing order of Luoyang>Nanyang>northern Henan>Sanmenxia>Pingdingshan.Significant positive correlations existed among the three component contents (P<0.01) with good unary linear regression results.The 122 genotypes of persimmons were divided into four groups according to the contents of the three components and 14 excellent germplasms were selected for leaf utilization.【Conclusion】There were high variations and polymorphisms in contents of total phenols,flavonoid and tannin in leaves of persimmon germplasms in Henan.The content of one component can be used to determine the contents of other two components. |
| Key words: phenols flavonoid tannin persimmon germplasms |
