September 1955]      A. MARIAKULANDAI AND P. VENKATARAMAIAH                     171

grown in an affected or unaffected area contained fluorine and the 'spreading'
had more fluorine than the 'bunch' evidently due to its longer duration of growth.
This finding was, therefore, in favour of the bunch variety and did not go to support
the popular belief that the incidence of the disease was more acute after the introduc-
tion of the 'bunch' variety.

                                                       TABLE II

      Comparison of the fluorine content of bunch and spreading varieties of groundnut

Lab. No.
1940-41

Variety

Source

Incidence of
fluorosis

Fluorine (mg. per gram ash)

In kernels
without oil

In shells

Total

1069

Bunch

Koilkuntla, Kurnool Dt.

Acute

0.3270

0.0744

0.4014

1070

Spreading

„ „

0.5478

0.0860

0.6338

1072

Bunch

Mandyal, „

Mild

0.1834

0.2280

0.4114

1071

Spreading

„ „

0.5070

0.1396

0.6466

2013

A.H.218, Bunch

„ Farm, „

0.2254

0.2980

0.5234

2014

A.H. 113,
Spreading

„ „ „

0.2985

0.3562

0.6547

2010

A.H. 218,
Bunch

Trichur Farm, Malabar

None

0.2442

0.0726

0.3168

2011

A.H. 113,
Spreading

„ „

0.2807

0.1180

0.3987

To see whether the increased cultivation of groundnut, due to the introduc-
tion of the shorter duration 'bunch' variety and the consequent increased mixing of
the groundnut haulms with other cereal straws, had any effect on the feeding value,
a comparison of feeding values with other straws generally available in the area
was made. The data presented in Table III shows that the feeding value of ground-
nut haulms is superior to other straws and there could be no cause for complaint
under this score either.

                                                           TABLE III

              Comparison of the feeding values of groundnut haulms and cereal straws

                                                        (On dry basis)

Name

Moisture

Ash

Crude

Crude
fibre

Ether
extract-
tives

Carbo-
hy drates

Albu-
minoides

CaO

P2O5

per cent

per cent

per cent

per cent

per cent

per cent

per cent

per cent

per cent

Groundnut haulms

7.33

11.46

9.21

30.38

1.48

40.12

7.02

2.30

0.35

Cholam straw

12.24

7.05

5.55

28.75

1.87

44.56

3.49

0.51

0.81

Ragi straw

11.30

9.23

3.74

25.44

1.24

49.06

2.88

1.00

0.35

Tenai straw

13.13

9.85

3.39

33.49

1.51

38.64

2.47

0.65

0.17

Cumbu straw

9.74

10.66

5.25

29.33

1.12

43.90

3.13

1.04

0.31

Varagu straw

9.01

9.00

4.31

28.85

2.04

46.79

3.62

0.58

0.31

Samal straw

9.04

5.96

4.18

26.95

1.15

52.72

3.71

0.62

0.25