摘要
[目的]了解黑果枸杞果实表型变异及表型与活性物质的关联,为其资源开发利用提供参考.[方法]以黑果枸杞果实为试材,提取23个表型特征,并测定其活性物质进行分析.[结果](1)表型特征圆度、相关性值和熵值变异系数较小,个体间差异小,稳定性高,面积、黄蓝通道值、红绿通道值、对比度和角二阶矩值变异系数较大.(2)活性物质含量变异系数均较大,稳定性差,选择潜力大.表型特征和活性物质间143对相关系数呈极显著水平(P＜0.01),20对相关系数呈显著水平(P＜0.05).(3)主成分分析表明红度、绿度、蓝度、亮度、明度、灰度、周长、面积、长度、宽度、角二阶距和能量值特征向量值较高,可作为其果实品质评价的重要参考因子.[结论]黑果枸杞果实有较大的选择潜力,可通过表型特征判断活性物质含量,试验结果可为果实品质评价及无损检测提供参考.
Abstract
[Objective]The aim was to understand the phenotypic variation of Lycium ruthenicum Murr.fruits and the correlation between phenotype and active substances,to provide reference for its resource development and utilization.[Methods]Taking L.ruthenicum as materials,23 phenotypic characteristics were extracted,and the active substances were determined and analyzed.[Results](1)The coefficient of variation of roundness,correlation value and entropy of phenotypic characteristics was small,the differ-ence between individuals was small,and the stability was high.The coefficient of variation of area,yellow-blue channel value,red-green channel value,contrast and angular second moment value was large.(2)The coefficient of variation of active substance content was large,the stability was poor,and the selec-tion potential was large.The correlation coefficients between phenotypic characteristics and active sub-stances were extremely significant in 143 pairs(P＜0.01)and significant in 20 pairs(P＜0.05).(3)Prin-cipal component analysis showed that the characteristic vector values of red,green,blue,brightness,lightness,gray,perimeter,area,length,width,angular distance,and energy value were higher,which could be used as important reference factors for fruit quality evaluation.[Conclusion]The fruits of L.ru-thenicum have great potential for selection,and the content of active substances can be judged by pheno-typic characteristics.These results provide reference for fruit quality evaluation and non-destructive testing.
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