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1

Thch Trn Minh Uyn

BM Dc Liu HYD CN TH

Cn Th, 10-2012

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MC TIU

1. Trnh by c nh ngha thn cy,cc

phn ca

thn

cy.

2. Phn bit c cc loi thn cy3.

So

snh

c cu to

thn

cy

lp

Ngc Lan v lp Hnh.

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nh

ngha

Thn

cy

l

c

quan

sinh

dng

ca

cy, trc ni tip r, thng mc trnkhng, t di ln trn. C nhim v dn nha i khp cy v mang l, hoa, qu.

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1. Thn

3.1 Chingn

2.2 Mu

2.1 Lng

3.2 Chi bn

CC PHN CA THN CY

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1.THN CHNH

Thng l trc ng Kch thc bin thin C hoc khng phn nhnh Ni tip r Tn cng l chi ngn

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1.THN CHNH

Thn c: mm, khng c cu to cp 2 lin tc 1 nm

2 nm

nhiu nm

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1.THN CHNHThn c:

1 nm

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1.THN CHNHThn c: 2 nm

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1.THN CHNHThn c: Nhiu nm

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1.THN CHNH

Thn g:

G to G va G nh

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1.THN CHNHThn g: G to: > 25 m

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1.THN CHNHThn g: G va: 15-25 m

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1.THN CHNH

Thn g: G nh:

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1.THN CHNHThn g:

G nh:

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1.THN CHNH

Thn g: G nh:

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1.THN CHNH

Thn ct: hnh tr, thng, khng phn nhnh,

mang b l ngnThn r: rng lng, c mt

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1.THN CHNH

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1.THN CHNH

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1.THN CHNH

Thn b

Thn qun

Thn leo nh vi cunThn trn

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1.THN CHNH

Thn b

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1.THN CHNH

Thn qun

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1.THN CHNH

Thn leo nh vi cun

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1.THN CHNH

Thn trn

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1.THN CHNH

Phn bit da vo tit dinTrn

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1.THN CHNH

Hnh tam gic

Cyperaceae

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1.THN CHNH

Hnh vung

Lamiaceae

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1.THN CHNH

Hnh ng gic

Cucurbitaceae
http://i39.tinypic.com/b66nt2.jpghttp://i39.tinypic.com/b66nt2.jpghttp://i39.tinypic.com/b66nt2.jpg

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1.THN CHNH

Tit din dt

Epiphyllum oxypetalum Haw

Cactaceae

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1.THN CHNH

Thn cy c hnh thi rt a dng

Plantago major

Khng thn

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1.THN CHNH

Mt ngoi c kha

Apiaceae

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1.THN CHNHMng nc

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1.THN CHNHMang lng che ch v lng tit

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2. Chi ngn: u ngn cy

3. Mu: ch l nh vo thn4. Lng: khong cch gia 2 mu lin tip

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5. CHI BNMc nch lPht trin thnh cnh hoc hoa

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6. CNHPht sinh t chi bnGc gia cnh v thn c trng cho tng loi cy

Gc nh, cnh gn nhthng ng

6 CNH

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6. CNH

Gc vung, cnh nm ngang

6 CNH

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6. CNHGc t, cnh r xung

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CC TH THN CYThn kh

sinh: thn g, thn c, thn ct, r, b,

leo, biThn a sinh: thn r, thn hnh, thn c

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CC TH THN CYThn r:

mc nm ngang, di, sng nhiu nm, mang l (vy), chi (ngn, nch), c so tng trng kiu trc hp hay trcn

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CC TH THN CYThn r

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CC TH THN CYThn hnh

mc ng, thng, ngn, , mang l bin i thnh vy mng nc cha chtd tr, 3 loi: thn hnh o, thn hnh vy, thn hnh c

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Vy c o
http://www.google.com.vn/imgres?imgurl=http://kienthuc.com.vn/news/images/stories/TieuDung/meovat/2010-02/cuhanh.jpg&imgrefurl=http://kienthuc.com.vn/news/index.php%3Foption%3Dcom_content%26view%3Darticle%26id%3D41753:bo-qun-c-hanh-%26catid%3D90:mo-vt%26Itemid%3D145&usg=__tjgYz87OMFedTWHG6jAYsIgi7m4=&h=314&w=314&sz=50&hl=vi&start=3&sig2=pYq7IEto616BqU_sMBfeVw&zoom=1&itbs=1&tbnid=jc4qFl5tIHDYxM:&tbnh=117&tbnw=117&prev=/images%3Fq%3Dc%25E1%25BB%25A7%2Bh%25C3%25A0nh%26hl%3Dvi%26sa%3DG%26gbv%3D2%26tbs%3Disch:1&ei=3sSHTN3mD4XCvQOnz7SOBA

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CC TH THN CYThn c

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CU TO GII PHU CU TO CA THN CY LP NGC LAN

CU TO CP 1 Biu b V cp 1 Trung tr

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Biu b

Lp t bo sng Khng c dip lc t, tinh bt Vch ha cutin Trn c l kh, lng che ch, lng tit

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V

CP 1

V thn mng hn v r T bo m dy (nng -tp trung ch li ca thn)

Nhng

cy

sng

nc v

cu to bi

m mm xp

T

bo

trong

cng

v

gi l ni b

(Caspary)

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Biu b

M dy

M mm

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TR

GIA

Tr bLp t

bo

ngoi

cng

ca tr

gia

i khi ha m cng lm nhim v nng (si tr b)

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TR

GIA

H thng dnLibe g l nhng b chng (i khi c b chng kp: libe quanh ty)G phn ha ly tma s mt vng (tru khng-h h tiu-2vng)

Gia

2 b

libe

g

c

dy

m

mm gi l tia

rut hay tia tyVi cy c rut rng (h hoa tn)

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Libe I

G I

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G

I

Libe I

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Libe I

G

I

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Ni b

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CU TO CP 2

Tng pht sinh ngoi: Bn Lc bTng pht sinh trong: G

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CU TO CP 2

Tng pht sinh ngoi: Bn Lc b

BN

LC B

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Bn

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CU TO CP 2

Tng pht sinh trong: Tng pht sinh libe - g, tng tng

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Libe II

G II

G I

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G II

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G I

Libe I

Tr b hm cng

Biu b

Libe II

Mchg II

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C

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THN CY LP HNH

Gm 3 phn: Biu b, v v tr gia (kh phn bit)Khc: Khng c m dy, m cng c vai tr

nng

B libe g sp xp khng trt tS

lng

mch

g

t, c

th

c

mch hnh

ch V

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Mch g

Libe

M cng

B dn ch V

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Documents

ORAL Than Cay 102012