Pengaruh Kerusakan Mekanis Pada Berbagai Tingkat Kadar Air Benih terhadap Viabilitas Benih Kedelai (Glycine max (L.) Merr.)

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PENGARUH

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VLABILiTAS BEWPH

KEDELAI

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RINGKASAN

HERLINA. P e n g a r u h K e r u s a k a n Mekanis p a d a B e r b a g a i T i n g k a t

K a d a r A i r B e n i h t e r h a d a p V i a b i l i t a s B e n i h K e d e l a i ( G I - y c i n e

max ( L . ) M e r r . ) ( D i bawah b i m b i n g a n HARRY S . PRANOTO DAN

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M . R . SUHARTANTO)

P e r c o b a a n i n i d i l a k s a n a k a n d i L a b o r a t o r i u m l l m u dan

T e k n o l o g i B e n i h , L e u v ~ i k o p o , Bogor, m u l a i b u l a n J a n u a r i sam-

p a i d e n g a n b u l a n J u n i 1 9 8 9 .

T u j u a n p e r c o b a a n u n t u k m e n g e t a h u i p e n g a r u h k e r u s a k a n

m e k a n i s p a d a b e r b a g a i t i n g k a t k a d a r a i r b e n i h t e r h a d a p v i a -

b i l i t a s b e n i h k e d e l a i .

Bahan p e r c o b a a n y a n g d i g u n a k a n a d a l a h b e n i h k e d e l a i va-

r i e t a s No.

29,

k e d e l a i h i t a m d a n k e d e l a i v a r i e t a s Dempo.

A l a t - a l a t y a n g d i g u n a k a n a d a l a h s e p e r a n g k a t

a l a t

p e l e m b a b

d a n p e n g e r i n g b e n i h , s e p e r a n g k a t a l a t p e n j a t u h a n b e n i h , s e -

per>-inp:lc:~tt a l n t p e n d e r a a r i b e n i h s e c a r a f i s i l r , s e p e r a t n f ; k a t :J-

l a t pengecambah b e n i h d a n l a i n - l a i n .

R n n c a n ~ a r i p e r c o b n a n y a n g d i g u n a k a n a d a l a h R a n c a n c a n

Acak Kelompok (HhK). d e n g a n p e n g a t u r a n p e r l a l r u a n s e c a r a Cak-

t o r i a l . Ada dua f a k t o r y a n g d i t e l i t i , y a i t u k a d a r a i r ( A )

d a n k e r u s a k a n m e k a n i s ( T I . K a d a r A i r ( A ) t e r d i r i a t a s t i g a

t a r a f y a i t u :

7

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K e r u s a k ~ n m e k a n i s t e r d i r i a t a s empat t a r a f k e t i n g g i a n p e n j a -

t u h a n y a i t u : 0

m

a t a u 0 Nm ( T I ) ,

1.5

m a t a u 0 . 0 0 1 7 Nm

(TI2),

5.0

m atau 0 . 0 0 3 3 lqrn ( T , ) d a n 4 . 0 m a t a u 0.00115 N m

(T,,).

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k o r n b i n a s i p e r l i ~ ! c i i a n . Masir!g-masing p e r l a k u a n d i u l a r ~ g s e b a -

nynk t i g a k a l i deiip:an einpat s u b s a m p l e , s e h i n g g a p a d a p e r -

c o b a a n i n i t e r d a p a t

76

s a t u a n p e r c o b a a n p a d a m a s i n g - m a s i n g

v a r i e t a s . A n a l i s a pada m a s i n g - m a s i n g v a r i e t a s d i l a k u k a n

s e c a r a t c r p i s a h .

P e n g a r u h p e r l h k u a n y a n g d i b e r i k a n t e r h a d a p v i a b i l i - t a s

b e n i h k e d e l a i d i a m a t i denpian menggunakan t o l o k u k u r d a y a

b e r k e c a m b a h , keserempu1i;~n tuinbuh, l a j u perturnbullan iiccalabah

d a n d a y a h a n t a r l i s t r i k . Peligamatan t e r h a d a p t o l . o k u k u r da-

y a b e r k e c a m b a h , k e s e r e m p a k a n tumbuh d a n l a j u p e r t u m b u h a n k e -

canibah d i l a k u l i a n s e t e l a h b e n i h mengalami p e n d e r a a n f i s i k .

I I a s i l p e r c o b a a n rnenunjukkan bahwa b e s a r n y a k e r u s a k a n me-

k a n i s y a n g d i a l a m i b e n i h s a a t p e n g o l a h a n b e r g a n t u n g pada k a -

d a r a i r b e n i h s a a t p e n i . o l a i ~ a n . Semakin r e n d a h k a d a r a i r be-

n i b p a d a t i n g k a t k e r u s a k a n y a n g s e m a k i n t i n g g i a k a n s e r n a k j ~ n

menurunkan v i a b i l i t a s b e n i h .

B e n i h k e d e l a i v a r i e t a s No.

29,

k e d e l a i h i t a m d a n k e d e l . a i v a r i e t a s Uernpo yany: b e r l r a d a r a i r r e n d a h

( 7

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9

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t e r h a d a p k e r u s a k a n m e k a n i s . Adanya p e n i n g k a t a n k a d a r a i r

h i n g g a b e r l c i a a r a n t a r a 11

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s a k a n m e k a n i s t e r h a d a p v i a b i l i t a s k e t i g a v a r i e t a s b e n i h k e d e -

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PENGARUH KRRUSAKAN MEKANIS

TERIIADAP VIABILITAS BENIIi KEDELAI

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(G1yc:ine

max

(L.)

Merr.)

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Oleh

H E R L I N A

A

22.0769

L a p o r a n K a r y a I l m i a h (BDP

409)

st:bngai s a l a h satm s y a r a t u n t u k memperoleh ~ e l a r

S a r j a n a P e r t s n i a n pada P a k u l t a s P e r t m i a n

I n s

t i t u

t

P e r t a n i a n Bogor

JURUSAN FUDI DAYA PFRTANIAN, FAKULTAS PERTANL4.N

INSTSTUT PERTANTAN BOGOR

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INSTITUT PERTANIAN BOGOR

FAKULTAS PERTANIAN, JURUSAN BUD1 DAYA PERTANIAN

Kami m e n y a t a k a n bahwa L a p o r a n K a r y a I l m i a h (BDP

469)

i n i y a n g d i s u s u n o l e h :

Nama Mahasiswa : H E R L I N A

Nomor Pokok : A 2 2 . 0 7 6 9

J u d u l : PEiNCARUH KERUSAKAN MEKANIS PADA BER-

B A G A I TINGKAT KADAR A I R BENIH TERWA-

DAP VIABILITAS BENIH KEDELAI ( G S y c i n e

mzx

( L . ) M e r r . )

d i t e r l m a s e b a g a i s a l a h s a t u s y a r a t u n t u k memperoleh g e l a r

S a r j a n a P e r t a n i a n pcida J u r i ~ s a n Budi Daya P e r t a n i a n , 17:i!<ul-

t a s P e r t a n i a n , I n c t i t u t P e r t a n i a n Bogor.

I r

H a r r g S . P r a n o t o ,

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I

p

Dosen Pembimbin Dosen Pernbimbinp; 11

Ke t t ~ a J u r u s a n K e t u a PS I l m u d a n T e k n o l o g i B e n i h

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