PENGARUH UMUR DAN BAGIAN STEK TERHADAP PERTUMBUHAN DAN PRODUKSI RUMPUT RAJA (KING GRASS)

Suryani, Dr. Soemitro Padwowijoto, M.Sc

1992 | Skripsi | S1 ILMU DAN INDUSTRI PETERNAKAN

P E N G A R U H U M U R D A N B A G I A N S T E K T E R H A D A P P E R T U M B U H A N D A N P R O D U R S I R U M P U T R A J A ( K I N G G R A S S ) S u r y a n i 2 2 0 9 / P T I N T I S A R I P e n e l i t i a n d i l a k u k a n s e l a m a e n a m b u l a n d i F a k u l t a s P e t e r n a k a n U n i v e r s i t a s G a d j a h M a d a b e r t u j u 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 u n r a r d a n b a g i a n s t e k t e r h a d a p p e r t u m b u h a n d a n p r o d u k s i R u m p u t R a j a ( K i n g G r a s s ) . D a l a m p e r c o b a a n d i g u n a k a n R a n d o m i z e d C o m p l e t e B l o c k D e s i g n ( R C B D ) p o l a f a k t o r i a l 3x3 . F a k t o r p e r t a m a u m u r s t e k , t e r d i r i a t a s , s t e k u m u r t i g a , e m p a t d a n l i m a b u l a n . F a k t o r k e d u a b a g i a n s t e k t e r d i r i a t a s s t e k b a g i a n u j u n g , t e n g a h d a n p a n g k a l , s e h i r t g g a s e m u a n y a m e m b e n t u k s e m b i l a n k o m b i n a s i p e r l a k u a n . U l a n g a n d i l a k u k a n e m p a t k a l i . T e r d a p a t 3 8 p l o t b e r u p a b'a r i s p a n j a n g 2 , 4 m , j a r a k a n t a r b a r i s s a t u m e t e t- d a n j a r a k t a n a m d a l a m b a r i s 3 0 c m . S e l a m a p e n e l i t i a n d i l a k u - k a n t i g a k a l i p e m u p u k a n d e n g a n u r e a ( 4 6 % N ) d e n g a n d o s i s 3 0 0 k g / h a . P e m u p u k a n p e r t a m a p a d a s a a t t a n a m a n u m u r t i g a m i n g g u , b e r i k u t n y a s e t e l a h p e m o t o n g a n p e r t a m a d a n k e d u a . P e m o t o n g a n d i l a k u k a n t i g a k a l i , y a n g p e r t a m a p a d a u m u r 1 3 m i n g g u , s e l a n j u t n y a d e n g a n i n t e r v a l 4 5 h a r i . H a s i l p e n e l i t i a n p a d a b e r b a g a i p e r l a k u a n u m u r s t e k m e n u n j u k k a n p e r b e d a a n ( P < 0 , 0 1) t e r h a d a p p e r t u m b u h a n t a n a m a n t i a p m i n g g u s e l a m a 1 3 m i n g g u s e t e l a h t a n a m , t i n g g i t a n a m a n u m u r 1 3 m i n g g u , p r o d u k s i s e g a r d a n b a h a n k e r i n g b e r t u r u t - t u r u t : 1 9 , 3 3 , 1 6 , 0 4 , 2 1 , 1 8 c m / m i n g g u ; 2 3 3 , 9 5 , 2 3 1 , 5 3 , 2 5 7 , 7 0 c m ; 2 4 , 7 8 , 2 5 , 5 0 , 3 3 , 3 4 k g d a n 3 , 4 0 , 3 , 4 4 , 4 , 5 4 k g . P e n g a r u h d a r i b e r b a g a i p e r l a - k u a n b a g i a n s t e k m e n u n j u k k a n p e r b e d a a n ( P < 0 , 0 1 ) t e r h a d a p p e r s e n t a s e t u m b u h , p e r t u m b u h a n t a n a m a n t i a p m i n g g u s e l a m a 1 3 m i n g g u s e t e l a h t a n a m , p r o d u k s i s e g a r d a n b a h a n k e r i n g b e r t u r u t - t u r u t : 9 4 , 8 , 8 9 , 6 , 7 1 , 9 % ; 2 0 , 3 4 , 1 9 , 4 2 , 1 9 , 8 7 c m / m i n g g u ; 3 0 , 8 2- , 2 6 , 0 2 , 2 6 , 7 8 k g d a n 4 , 3 5 , 3 , 5 2 , 3 , 5 1 k g . I r i t e r a k g i p e r l a k u a n m e m b e r i k a n p e n g a r u h y a n g b e r b e d a ( P < 0 , 0 1 ) t e r h a d a p p r b d u k s i s e g a r p a d a k e s e mb i l a n k o m b i n a s i p e r l a k u a n b e r t u r u t - t u r u t : 2 7 , 2 6 , 2 4 , 2 6 , 2 2 , 8 3 , 2 7 , 0 3 , 2 7 , 1 6 , 2 2 , 3 0 , 3 8 , 1 8 , 2 6 , 6 3 d a n 3 5 , 2 0 k g . S e d a n g k a n p e n g a r u h d a r i b e r b a g a i p e r l a k u a n u m u r s t e k , b a g i a n s t e k m a u p u n i n t e r a k s i n y a t i d a k m e n u n j u k k a n p e r b e - d a a n t e r h a d a p p e r s e n t a s e k e m a t i a n s t e k d a n j u m l a h a n a k a n . D a r i h a s i l p e n e l i t i a n d i s i m p u l k a n b a h w a p e r t u m b u h a n d a n p r o d u k s i p a d a s t e k u m u r l i m a b u l a n d a n j u g a s t e k b a g i a n u j u n g l e b i h t i n g g i d i b a n d i n g p e r l a k u a n l a i n n y a , s e h i n g g a d a l a m p e n g e m b a n g a n R u m p u t R a j a d i s a r a n k a n u n t u k m e n a n a m s t e k u m u r l i m a b u l a n . ( R a t a K u n c i : R u m p u t R a j a , U m u r S t e k , B a g i a n S t e k , P e r - t u m b u h a n , P r o d u k s i ) .

T HE EFFECT OF A G E AND P A R T O F CUT T I NG ON THE G R O W T H AND PRODUCTI O N O F K I N G G RAS S S urya n i 2209/PT A B S TRACT T h e e x p e r i m e n t was conducted for s ix m o n t h s at t h e F a culty o f A n i m a l Husb a n d r y • G M U t o i n v e s t i g ate the effec t of a ge and p a r t of c u ttin g o n the gro w th and p r o d u c t i o n o f King G r ass . Th e col l e c t ing d a ta were a n a l y s e d b y usin g a 3 x3 fa c t o rial o f R C B D . T h e fac t o r I, w a s cu t t ing a g e s of thr e e , fou r a n d f i v e m o n ths . T he f a c t o r II, was pa r t o f c utti n g , nam e l y t o p, medi um an d b o t t o m , wh e r e a s n i n e t r i a l co m b ina t i ons w e r e obtain e d w i t h four re p l i cati o n s. There we r e 3 6 p lots of rows w i th 2 . 4 m lenght and t h e d i s t a n c e betw e e n ro w s was one meter a n d the dis t a n ce b e t w e en pla n t s w a s 3 0 c m . T he manure was giv e n three t i mes namely u r e a (46 % N ) w ith the d o se of 300 k g / h a . I t w as d o n e at three week s old , f o l l o w e d by e a ch 4 5 day s p eriodical y. T h e re s u lts i n d i c a t e d t h a t there w e re s i g n i f i cant d i ff e r enc e s (P < 0. 0 1) due t o cutting a g e on t h e average of hig h i n c r e a s i n g per wee k at 1 3 w e e k s p o s t planting . Th e h igh of p l a n t at 1 3 w e eks old , t h e fr e s h a n d d ry-m a t t e r prod u c t ion w e r e : 1 9 . 3 3 , 1 6 . 0 4 , 2 1.18 cm/ w e e k were 233. 9 5, 231 .53, 2 5 7 .70 cm ; 24. 7 8 , 25. 5 0, 3 3 .34 kg a nd 3.40, 3.44, 4. 54 k g , respe c t i vely . T h ere w e r e s ignific a n t d iffer e n c es (P < 0 .0 1) due to p a r t of c utting o n growt h p ercentage , t h e ave r age of hi g h t i n c r e a s e d pe r wee k at 1 3 w e e k p o st p lantin g , fr e s h product and dr y-matter p r oducti o n, t h e va l ues w e re : 9 4. 8, 8 9.6 , 71.9% ; 20.3 4, 19.42, 1 9 . 87 c m / wee k ; 3 0 .82, 26.02, 2 6.78 kg and 4. 35, 3 . 52, 3 .51 kg . The re were i n terac t i ons (P < 0. 01) between t reatm e n t s on t h e f r e sh p r o d uct , at all co m b i nation t ria l s, n a m e l y : 2 7 . 2 6, 24. 2 6 , 2 2 . 8 3, 27. 0 3, 27. 1 6 , 22.30, 38 . 18, 26. 6 3 a n d 3 5.2 0 k g . On t h e contr a r y n o i n t e r action s we r e ob s e r v e d b e t w e e n cut t i ng a ge an d p art of c u tting o n the p e r c e n t a ge of d eat h an d t he numbe r o f buds. I t was concl u d e d t h at the g rowth a nd productio n of cu t t i ng s y s t em at five mont h old a n d at t h e to p cutting was higher tha n other trea t ment s, so t h a t th e K i n g G r ass deve l o pment w a s rec o m m a n d e d t o cutting s y s t e m at f i v e m o nth s old . ( K e y W o r ds : King Gr as s , C u ttin g Age, C utti n g P a r t , G row t h, P r oduc t i on ).

Kata Kunci : rumput raja, umur stek, bagian stek, pertumbuhan, produksi