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22 Melanocenchris jacquemonlii 16000 4 4000.00 9.38

23 Oryza rufipogon 18400 8 2300.00 8.07
24 Paspalidium flavidum 10000 12 833.33 5.58

25 Paspalum distichum 30000 12 2500.00 10.97

26 Saccharum spontaneum 22000 8 2750.00 9.27
27 Sateria glauca 7600 4 1900.00 4.96

28 Sateria intermedia 18000 8 2250.00 7.93

29 Sateria verticillata 7200 8 900.00 4.33
30 Sehima nervosum 13200 12 1100.00 6.44

31 Sorghum bicolor 6800 8 850.00 4.19

32 Sorghum halepense 8000 8 1000.00 4.59
33 Sporobolus diandrus 49600 12 4133.33 16.26

34 Sporobolus indicus 16800 12 1400.00 7.42

35 Themeda quadrivalvis 11600 16 725.00 6.60
36 Urochloa panicoides 5200 8 650.00 3.66

707600 416 64926.19 300

Phyto-sociological parameters of grasses
From the primary data on species wise number of grasses, secondary attributes, such

as density, frequency, and their relative values were worked out and these are shown in Table
1 for southern area of Jabalpur district, Madhya Pradesh.

The abbreviations used in this table are given below.

D = Density, F= frequency, AB= Abundance and IVI= RD+RF+RAB.

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Perusal of Table 1 reveal the highest average grass density (125600ha ) of
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Dichanthium annulatum, followed by Brachiarea ramose (61600ha ), Sporobolus diandrus
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-1
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(49600ha ), Cynodon dactylon (42000ha ), paspalum distichum (30000ha ), Digitaria
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ternata (26400ha ). The lowest density was recorded for Dinebra retroflexa, Eragrostis
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brachyphylla and Eragrostis uniloides (each 6000ha ). Cynodon dictylon is the most
frequently occurring grass species in southern area of Jabalpur, with frequency of 36%,

followed by Dichanthium annulatum (32%), Brachiarea ramosa and Digitaria ternate (each
28%). Borthriochloa pertusa, Dactyloctenium aegyptum, Dinebra retroflexa, Eragrostis

brachyphylla, Eragrostis uniloides, Imperata

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