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Crop : Sugarcane.

Field : Plant Physiology.

Collaborator : Self

Title : Physiological Interpretation of Early Maturity in Sugarcane.

Author : R.Narasimhan,R .S.Sachan,G.S.C.Rao and A.T. Yaragattikar

Year :1980

In the advent of early maturity in sugarcane varieties coming in commercial cultivation, it is essential to know various factors associated with early nature, therefore an experiment has been conducted to identify different yield and quality components occuring in Co 997 an early maturing cane. The trial was initiated in month of Feb. 1980 with four replications in randomised block design. At three harvests (viz. August, September and October) in 6th, 7th and 8th months of age, biological, agricultural, and industrial yield have been determined. For quality components pol % cane, moisture % cane, non-sugar % cane, pol % dry matter and dry matter % cane were deterimined. Results are presented in Tables - 6:1, 6:2, 6:3, and 6:4. Table 6:4 gives the correlation of pol% cane with other quality parameters.

TABLE - 6:1.

1. Experiment : Yield and quality componants

2. Replication : 4

3. Layout : R.B. D. associated with early maturity in

4. Plot Size : 54 Sq.m. sugarcane.

 

Fresh weight yields of ealry and late varieties Tonnes ha-1.

Parameter

  

Age in months

     
    

6th (Aug.)

7th (Sept.)

8th (Oct.)

  

Mean

Biological Yield

Co 62175

110.40

121.20

124.00

  

118.53
 

Co 997

73.30

94.70

99.00

  

89.03
   

LSD at 5%

Var.9.408

Months

: 11.50

  

Agricultural Yield

Co 62175

77.00

87.90

94.00

  

86.3

Co 997

44.60

61.70

2.10

  

59.47
 

LSD at 5%

Var.7.14

Months

: 8.74

   

Industrial Yield

Co 62175

5.92

8.10

8.82

  

7.61
    

Co 997

3.92

7.15

9.16

  

6.74
    

LSD at 5%

Var.1.07

Months

: 1.31

  

TABLE - 6:2.

1. Experiment : Yield and quality componants associated with early maturity in sugarcane.

2. Replication : 4

3. Layout : R.B. D.

4. Plot Size : 54 Sq.m.

Dry weight yields of ealry and late varieties Tonnes ha-1.

Parameter

   

Age in months

    
   

6th (Aug.)

7th (Sept.)

8th (Oct.)

   

Mean

Biological Yield

Co 62175

27.70

36.60

40.00

    

34.77
   

Co 997

23.50

35.70

40.20

      

33.10
       

LSD at 5%

Var. 3.27

Months

: 4.01

  

Agricultural Yield

Co 62175

16.30

18.40

23.50

    

19.40
    

Co 997

11.20

16.40

23.50

      

17.03
            

LSD at 5%

Var. 2.07

Months

: 2.53

    

Industrial Yield

Co 62175

1.32

1.69

2.80

    

1.94
   

Co 997

0.98

2.01

3.02

    

2.00
    LSD at 5% Var. 0.28 Months : 0.35  

TABLE - 6:3.

1. Experiment : Yield and quality componants associated with early maturity in sugarcane.

2. Replication : 4

3. Layout : R.B. D.

4. Plot Size : 54 Sq.m.

Quality components in ealry and late varieties as function of age.

Parameter

    

Age in months

    
          

6th (Aug.)

7th (Sept.)

8th (Oct.)

  

Mean

Pol % Cane

Co 62175

7.67

9.22

11.48

  

9.46
   

Co 997

8.76

10.42

12.75

  

10.64
         

LSD at 5%

Var. 0.72

Months

: 0.89

   

Moisture % Cane

Co 62175

78.86

78.99

75.55

    

77.80
      

Co 997

74.77

73.65

71.00

   

73.14
           

LSD at 5%

Var. 2.98

Months

: 2.55

D.M % Cane

Co 62175

21.13

21.00

25.34

  

22.49
        

Co 997

25.22

26.55

33.09

  

28.29
       

LSD at 5%

Var. 2.08

Months

: 2.55

  

Pol % D.M

  

Co 62175

36.23

43.88

45.57

  

41.89
       

Co 997

32.79

30.14

38.73

  

33.89
         

LSD at 5%

Var. 4.69

Months

: 5.75

  

Non Sugar % Cane

Co 62175

3.44

3.57

3.22

  

3.41
   

Co 997

3.44

3.27

2.22

  

2.98
     

LSD at 5%

Var. 0.87

Months

: 1.06

  

TABLE 6:4.

1. Experiment : Yield and quality componants associated with early maturity in sugarcane.

2. Replication : 4

3. Layout : R.B. D.

4. Plot Size : 54 Sq.m.

Correlation of Pol% cane with different quality componants.

Parameter

r

P

Pol % Cane with

        

D.M % Cane

Co 62175

0.8051

0.001
 

Co 997

0.6676

0.05

N.S. % Cane

Co 62175

-0.3479

N.S
 

Co 997

-0.8294

0.001

Moisture % Cane

Co 62175

-0.8054

0.001
 

Co 997

-0.6676

0.01

Pol % D.M.

Co 62175

0.8686

0.001
  

Co 997

0.5277

0.01

 

 

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