Research, Development and Innovation Agency Conference Portal, International Conference on Managing Forest Genetic Resources in Changing Environment and Landscapes

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Relationship betweenAcacia mangium × Acacia auriculiformis hybrids and their parents based on leaves and roots anatomy features
Sri - Sunarti, Arif - Nirsatmanto, Intan - Permatasari, Suharyanto - -

Last modified: 2019-05-24

Abstract


Acacia hybrid, a crossing of Acacia mangium × Acacia auriculiformis do not always perform intermediate features of both parents. This study was conducted to observe the similarity of Acacia hybrid progeny to the parents based on anatomical features of leave and root. Leaves and roots were taken from each three sample trees of Acacia hybrid and parent species selected on three growth superiority classes: superior, intermediate and inferior. The anatomical features were observed from leave and root tissue specimens that were prepared through free-hand and non-embedding technique. The similarity and relationship indexes were determined using clustering analysis. The results showed that the observed Acacia hybrid progenies had similarity indexes of 83.4%-90.3% and 83.3%-88.2% to the female and male parent, respectively. Based on the fenogram analysis, the parents species were clustered into two clearly separated groups with the distance of 86%. The superior and intermediate classes of Acacia hybrids tended to cluster into female parent group rather than the male. These results imply that superior Acacia hybrids could be potentially produced by imposing the superiority of female parents.


Keywords


Acacia hybrid, similarity index, fenogram, female parent, male parent, tree breeding

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