Sunday, 5 January 2014

Standar Pengamatan Varietas pada Tanaman Tebu (Saccharum officinarum)

 FIELD OBSERVATION CRITERIA FOR SUGAR CANE


1.  Perkecambahan (Germination)
Scale
Criteria
Percentage
1
2
3
4
5
6
7
8
9
Sangat bagus  (very good)

Bagus (good)

Sedang (medium)

Jelek (bad)

Sangat jelek (very bad)
> 90 - 100

> 80 - 90

> 70 - 80

> 60 - 70

< 60


2. Anakan (Tillering Ability)
Scale
Criteria
Jml anakan/rumpun
(Tillering ability)
1
2
3
4
5
6
7
8
9
Sangat banyak (planty)

Banyak (Many)

Sedang (medium)

Sedikit (few)

Sangat sedikit (very few)
8 – 9

6 – 7

4 – 5

2 – 3

1



3 . Populasi (Population)
Scale
Criteria
Jml. batang / meter
(No of Stalk  /meter)
1
2
3
4
5
6
7
8
9
Sangat tinggi (very high)

Tinggi (high)

Sedang (medium)

Rendah (low)

Sangat rendah (very low)
> 12

10 – 12

8 – 10

6 – 8

< 6



4. Diameter Batang (Stalk Diameter)
Scale
Criteria
Diameter stalk (mm)
1
2
3
4
5
6
7
8
9
Sangat besar (very big)

Besar (big)

Sedang (medium)

Kecil (litle)

Sangat kecil (very litle)
> 35

> 25 -  35

> 20 - 25

> 7.5 - 20

 < 7.5


5. Penggabusan Batang (Pith)
Scale
(Top, Midlle, Base)
Criteria
No Pith
0
< 1/5 part of stalk radius
1/5 part of stalk radius
> 1/5 part of stalk radius
1-
1
1+
< 2/5 part of stalk radius
2/5 part of stalk radius
> 2/5 part of stalk radius
2-
2
2+
< 3/5 part of stalk radius
3/5 part of stalk radius
> 3/5 part of stalk radius
3-
3
3+
< 4/5 part of stalk radius
4/5 part of stalk radius
> 4/5 part of stalk radius
4-
4
4+
< 5/5 part of stalk radius
5/5 part of stalk radius
> 5/5 part of stalk radius
5-
5
5+






6. Lubang (Pipe tube)
Scale
( Top, Midlle, Base)
Criteria
No Pipe
0
< 1/5 part of stalk radius
1/5 part of stalk radius
> 1/5 part of stalk radius
1-
1
1+
< 2/5 part of stalk radius
2/5 part of stalk radius
> 2/5 part of stalk radius
2-
2
2+
< 3/5 part of stalk radius
3/5 part of stalk radius
> 3/5 part of stalk radius
3-
3
3+
< 4/5 part of stalk radius
4/5 part of stalk radius
> 4/5 part of stalk radius
4-
4
4+
< 5/5 part of stalk radius
5/5 part of stalk radius
> 5/5 part of stalk radius
5-
5
5+



7. Tinggi Batang (Length of stalk)
Scale
Criteria
 Length of stalk (cm)
1
2
3
4
5
6
7
8
9

Sangat tinggi (very long)

Tinggi (long)

Sedang (medium)

Pendek (short)

Sangat pendek (very short)
> 350

> 300 – 350

> 250 – 300

> 150 - 250

< 150




8. Sogolan (water shoot / bull shoot)
Scale
Criteria
Jumlah sogolan / meter
(No of water shoot / meter)
1
2
3
4
5
6
7
8
9
Sangat Sedikit(very few)

Serdikit (few)

Sedang (medium)

Banyak (many)

Sanggat Banyak (planty)
0 - 1

2 - 3

4 - 5

6 - 7

.> 8
Note : Pengamatan sogolan dilakukan umur 9 bulan (Observation start nine month age).


9. Siwilan (Side Shoot)
Scale
Criteria
Jml. Siwilan / batang
(No of side shoot / stalk)
1
2
3
4
5
6
7
8
9
Tanpa (zero)

Sedikit (few)

Sedang (medium)

Banyak (many)

Sangat Banyak (planty)
0

1 – 2

3 - 4

5 – 6

> 6
Note : Siwilan yang disebabkan oleh borer tidak dihitung (Side shoot caused by borer not include)  


       
10. Akar gantung (Side Root)
Skala
Criteria
Jml. Ruas yang berakar / batang
(No of internode have side root / stalk)
1
2
3
4
5
6
7
8
9
Sangat Sedikit (very few)

Sedikit (few)

Sedang (medium)

Banyak (Many)

Sangat Banyak (planty)
0

1 - 2

3 - 4

5 - 6

> 6




11. Batang mati (dead stalk)
Skala
Criteria
Percentage
1
2
3
4
5
6
7
8
9
Sanggat sedikit (very few)

Sedikit (few)

Sedang (medium)

Banyak (Many)

Sangat Banyak (planty)
< 3

3 - 7

8 - 10

11 - 15

> 15
Note : Panjang sample minimal 10 meter (minimal sample with in 10 meter)



12.  Derajat Kerobohan (Lodging degree)
Scale
Criteria
degree
1
2
3
4
5
6
7
8
9
Tegak (Erect)

Agak condong (rather incline)

Condong ( incline )

Roboh ( Lodging)

Sangat roboh (Very Lodging)
0 - 15

> 15 - 35

> 35 - 55

> 55 - 75

> 75 - 90





13. Persentase Kerobohan (Lodging percentage)
Skala
Criteria
percentage
1
2
3
4
5
6
7
8
9
Sangat Sedikit  (very few)

Sedikit (few)

Sedang (medium)

Banyak (Many)

Sangat Banyak (planty)
< 5 %

5 – 10

10 – 15

15 – 20

> 20
Note :Tebu roboh adalah tebu yang miring > 50 derajat (Lodging is sugar cane lodge > 50 degree



      
14. Pembungaan (Flowering)
Scale
Criteria
Percentage
0

1
2
3
4
5
6
7
8
9
Tidak berbunga (No flower)

Sangat Sedikit (very few)

Sedikit (few)

Sedang (medium)

Banyak (many)

Sangat banyak (planty)
0

< 5

> 5 - 20

> 20 - 40

> 40 – 80

>80


15. Kebersihan Daun (Leaf Deseases)
Scale
Criteria
Percentage of desease Symptom
0

1
2
3
4
5
6
7
8
9
Tidak ada penyakit (No Desease)

Sangat Bersih (very clean)

Bersih (clean)

Sedang (medium)

Kotor (dirty)

Sangat kotor (very dirty)
0

< 5

> 5 - 20

> 20 - 40

> 40 – 80

>80
Note : Daun kotor akibat serangan penyakit (Leaf Dirty causes by deseases symptom)



16. Retakan tumbuh (Number of crack internode)
Scale
Criteria
Jumlah ruas retak/btg
(No of internode crack / stalk)
1
2
3
4
5
6
7
8
9
Sangat sedikit (very few)

Sedikit (few)

Sedang (medium)

Banyak (Many)

Sangat Banyak (planty)
0

1 – 2

3 - 4

5 – 6

> 6


17. Sifat Penggulungan Daun (Characters of rolling leaf)
Skala
Criteria
0
1
Tidak menggulung (No Rolling leaf)
Menggulung (Rolling )
Note : Diamati pada saat matahari terik/Observe when sunny


18. Vigor Tanaman (Overall vigor of growing)
 Scale
Agronomic Performance
1
2
3
4
5
6
7
8
9
Sangat Bagus  (Very good)

Bagus (good)

Sedang (medium)

Jelek (bad)

Sangat Jelek (very bad)


19. Kualitas (Quality)
Scale
Criteria
% Brix
% Pol
% Rendement
1
2
3
4
5
6
7
8
9
Sangat tinggi (very high)

Tinggi (high)

Sedang (medium)

Rendah (low)

Sangat rendah (very low)
> 22

20 – 22

18 – 20

16 – 18

< 16
> 18

> 16 - 18

>14 - 18

> 12 - 14

< 12
> 8.5

> 7.5 - 8.5

> 6.5 - 7.5

> 5.5 - 6.5

< 4



20. Ton Cane per Hektar  (TCH)
Skala
Criteria
TCH
1
2
3
4
5
6
7
8
9
Sangat tinggi (very high)

Tinggi (high)

Sedang (medium)

Rendah (low)

Sangat rendah (very low)
> 110

> 90 - 110

> 70 - 90

> 50 - 70

< 50



21. Sifat Pengelentekan Daun (Characters of  Detrashing)
Skala
Criteria
0
1
Mengelentek sendiri (Self Detrashing)
Tidak mengelentek (No Detrashing)`

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