Sains Malaysiana 44(1)(2015):
17–23
Variation
in Anatomical Characteristics of Bamboo, Bambusa rigida (Variasi dalam Ciri Anatomi Buluh, Bambusa rigida)
XING-YAN HUANG, JIN-QIU QI*, JIU-LONG XIE, JIAN-FENG HAO,
BAI-DONG QIN & SI-MIN CHEN
College of Forestry, Sichuan Agricultural
University, Yaan, Sichuan 625014, China
Diserahkan: 8 November 2013/Diterima: 30 Jun 2014
ABSTRACT
The culms of bamboo Bambusa rigida ranging from 1, 3 and 5 year old were obtained
and investigated for anatomical characteristics in different ages, heights and
zones in radial direction of culm wall thickness. The vascular bundles were
denser and smaller at the top portion and outer zone of all age groups. No
significant differences in vascular bundle frequency and size were found among
the tree age groups. Metaxylem vessels did not vary significantly among ages.
Fibre and parenchyma were longer in the middle portion of the height and middle
zone in radial direction of culms wall. No significant differences in fibre and
parenchyma length were observed in all age groups. The wall thicknesses of
fibre and parenchyma were thicker in the top portion and outer zone.
Furthermore, the wall thicknesses of fibre and parenchyma increased
significantly from 1 to 3 year, showing that there is a maturing progress from
1 to 3 year.
Keywords: Anatomical morphologies; Bambusa rigida; fibre; parenchyma; vascular
bundle
ABSTRAK
Kulm buluh Bambusa
rigida berusia 1, 3 dan 5 tahun telah diperoleh dan dikaji untuk
ciri anatomi pada pelbagai peringkat umur, ketinggian dan zon arah
radius ketebalan dinding kulm. Berkas vaskular adalah lebih tumpat
dan kecil di bahagian atas dan zon luar bagi semua peringkat umur.
Tiada perbezaan yang signifikan dalam kekerapan berkas vaskular
dan saiz ditemui antara kumpulan umur pokok. Sel salur metaxilem
pula tidak berubah dengan ketara antara peringkat umur. Serabut
dan parenkima adalah lebih panjang di bahagian tengah ketinggian
dan zon tengah arah radius dinding kulm. Tiada perbezaan yang signifikan
dalam panjang gentian dan parenkima diperhatikan pada semua peringkat
umur. Ketebalan dinding serabut dan parenkima adalah lebih tebal
di bahagian atas dan zon luar. Tambahan pula, ketebalan dinding
serabut dan parenkima meningkat dengan ketara daripada usia 1 kepada
3 tahun, yang menunjukkan bahawa terdapat kemajuan daripada segi
kematangan daripada usia 1 ke 3 tahun.
Kata kunci: Anatomi morfologi; Bambusa rigida; berkas vaskular; parenkima; serabut
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*Pengarang
untuk surat-menyurat; email: qijinqiu2005@aliyun.com
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