Morfologi & Pengkelasan (2)
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Transcript of Morfologi & Pengkelasan (2)
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15 Julai 2005
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AGR 3506
Prinsip Sains Tanaman
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organ penyimpanan
(karbohidrat, air,
nutrien, vitamins)
AGR 3506 : PRINSIP SAINS TANAMAN 1. Morfologi dan Pengkelasan
Morfologi Akar
• fungsi :
jangkar (anchor)
penyerapan nutrien dan air
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AGR 3506 : PRINSIP SAINS TANAMAN 1. Morfologi dan Pengkelasan
Morfologi Akar
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AGR 3506 : PRINSIP SAINS TANAMAN 1. Morfologi dan Pengkelasan
Morfologi Akar
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AGR 3506 : PRINSIP SAINS TANAMAN 1. Morfologi dan Pengkelasan
Morfologi Akar
• ubahsuaian akar :
ubi keledek akar
kentang batang
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organ penyimpanan
ubi keledek – akar sebenar
membesar dari biji benih, batang
kentang – batang bawah tanah
dari biji benih sahaja
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Orkid epifit
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AGR 3506 : PRINSIP SAINS TANAMAN 1. Morfologi dan Pengkelasan
Morfologi Bunga
• fungsi :
menarik perhatian pendebunga
serangga, kelawar
melalui warna, bau dll.
• wujud :
tunggal (bersendiri) - solitary
jambak - inflorescence
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AGR 3506 : PRINSIP SAINS TANAMAN 1. Morfologi dan Pengkelasan
Morfologi Bunga
• 4 komponen utama :
petal corolla
sepal calyx
pistil bahagian betina
gynoecium
stamen bahagian jantan
androecium
Sepal
Staminode
Ovary
Style
Petal
Stamen
Pollen
Receptacle
Stigma Germinating pollen
Anther
Filament
Egg cell
Embryo sac
Secondaryembryo sac nucleus
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AGR 3506 : PRINSIP SAINS TANAMAN 1. Morfologi dan Pengkelasan
Morfologi Bunga
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AGR 3506 : PRINSIP SAINS TANAMAN 1. Morfologi dan Pengkelasan
Monopodium Sympodium Pleiochasium
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AGR 3506 : PRINSIP SAINS TANAMAN 1. Morfologi dan Pengkelasan
Morfologi Bunga
• ubahsuaian :
Cauliflower Brocoli
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AGR 3506 : PRINSIP SAINS TANAMAN 1. Morfologi dan Pengkelasan
Morfologi Biji benih
• 2 jenis utama :
dicot dicotyledon
2 kotiledon
monocot monocotyledon
1 kotiledon
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Morfologi Biji benih
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AGR 3506 : PRINSIP SAINS TANAMAN 1. Morfologi dan Pengkelasan
1. Pengkelasan Tradisional
Sistem pengkelasan tanaman
2. Pengkelasan Diskriptif
3. Pengkelasan Moden
PENGKELASAN TANAMAN
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1. Pengkelasan Tradisional:
a. kegunaan kpd manusia : tanaman makanan, bahan bakar, tanaman ternakan dll.
b. tempat pertumbuhan : lautan, air tawar, hutan, dll.
c. bentuk / rupa : herba, pokok, dll.
d. campuran bentuk / rupa : hiasan, sayuran, buah-buahan, dll.
PENGKELASAN TANAMAN
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Sistem tidak tepat, mungkin memadai
Sistem diolah / diperbaiki : morfologi >
asas pengkelasan traditional
Pertindihan
1. Pengkelasan Tradisional:
PENGKELASAN TANAMAN