Floribunda
Vol. 5 No. 2 (2015)

LEAF FLUSHING AS TAXONOMIC EVIDENCE OF SOME DIOSPYROS SPECIES

Eva Kristinawati Putri (Graduate School of Bogor Agricultural University, Biology Department.)
Tatik Chikmawati (Bogor Agricultural University, Bogor.)



Article Info

Publish Date
28 Feb 2016

Abstract

People tend to use generative structures for plant identification. Nevertheless, generative structure availibility limits the identification practice for a plant with once-a-year fruit-bearing phase, such as Diospyros L. (Ebenaceae). Being vegetative characters, leaf flushing are rarely used for plant identification so that they have not been explored as a taxonomic evidence. In this paper, leaf flushings and their taxonomic implication were studied using eight species of Diospyros grown in Ecopark of Cibinong Science Center LIPI, Bogor (West Java). Observations on morphological characters were undertaken on three twigs (which have three flushing sets and an apical dormant bud) taken from each 22 individual trees of Diospyros species available. Morphological development observation showed that bud rhythmic growth produce flushing sets usually distinguishable from the previous sets. Leaf flushing time after a period of dormancy and the presence of small reduced leaf in some species indicated anarrested growth in the bud. Leaf flushings can be found every few months or all year around with a period of 40–55 days for the formation of mature leaves. Leaf flushing provided 39 characters that can be used as taxonomic evidence for distinguishing the eight species of Diospyros observed. A determination key for these species solely based on leaf flushing characters is presented.

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Journal Info

Abbrev

Floribunda

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Description

Floribunda is published both in Bahasa Indonesia and English, covers wide range of plant diversity, taxonomy and systematics of Malesian flora particulary distributed in ...