Genetic Diversity and Relationships of Tea Germplasm Collection Based on Leaf Morphology Character and Yield Components

Vitria Puspitasari Rahadi, Heri Syahrian Khomaeni, Liberty Chaidir, Budi Martono

Abstract


Tea (Camellia sinensis (L.) O. Kuntze) is a cross-pollinated plant that has self-incompatible character. Assembly of superior clones through artificial pollination requires information of genetic relationships between accessions as a reference for parental lines selection. The study was aimed to determine the genetic diversity and relationships of 49 tea clones based on leaf morphology and yield components. The research was conducted at Pasir Sarongge experimental garden, Cianjur, West Java, from April to November 2015. The observed morphological characters were leaf length and width, leaf area, leaf angle, number of vein leaf, and internode between first and second leaves. Meanwhile, yield components were pecco number, pecco weight (p+3), banji bud number, banji bud weigth (b+1), and yield. The data were then used for descriptive analysis and grouping using UPGMA method based on dissimilarity matrix by XL-STAT software version 2009. The research showed that 49 clones observed here have variability on yield, leaf area, number of banji bud, and pecco number with coefficient of diversity 27.77%–51.83%. On the other hand, result of cluster analysis divided tea clones into four groups. The first group consisted of 34 clones with morphological characteristics similar to sinensis type (narrow leaves and low productivity). Group II comprised 12 clones with morphological characteristics (wide leaf) and productivity (high) similar to assamica type. Group III and IV, each contained one clone, and have similarity to assamica. The most far genetic relationships was found between group I and II (55.59%), while the closest one observed between group III and IV (5.76%).


Keywords


Tea; germplasm; diversity; genetic relationship

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DOI: http://dx.doi.org/10.21082/jtidp.v3n2.2016.p103-108

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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.


 

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