论适制乌龙茶品种的特殊性状

1988—1991年对17个茶树品种鲜叶进行了乌龙茶适制性的研究,结果表明,适制乌龙茶的品种鲜叶形态结构特征是叶片宽、梗粗、节间短、叶长/叶宽比值小、梗粗/节长比值大、叶片厚、上表皮厚和栅栏组织厚等8项性状。这些性状与乌龙茶加工工艺和成茶品质,存在着内在的联系。利用这8项指标,建立了乌龙茶适制性分类判别函数,经对17个品种的各类性状进行回代判别,其准确率达88.2%,因而这8项性状可作为选育和推广乌龙茶良种的理论依据。

Discussion on Specific Character of Processing Suitability to Oolong Tea Varieties

Studies on processing suitability for Oolong tea with seventeen tea va-rieties were corducted from 1988 to 1991.Results showed that eight charac-ters of morphological and structure of fresh leaf were the suited varieties forOolong tea processing which were:wide leaf blade,strong stem,short inter-node,small ratio of leaf length and leaf width,big ratio of stem diameterand internode length,thick leaf blade,thick epicuticula,and thick palisedetissue.These characters were related with the processing and made teaquality.By the application of the eight factores,grading of suited-processingto Oolong tea discriminant fuction was set up.Then,repeated the examinationto discriminate these characters of seventeen tea varieties,the accuracy ofdiscriminant analysis result reached 88.2%.Therefore,these kinds of indexmay be used as the theory of selection and recommendation of Oolong teavarieties.