Variants Plant height/cm Root length/cm

Fresh weight/g

Dry weight/g

Leaves Roots Leaves Roots

Control (uninfested and non treated plants) V5

47 17 10.929 3.066 2.562 1.084

V1(X. index + 0.5g Chlorella)

31 16 5.947 1.847 1.297 0.811

V2 (X. index + 1g Chlorella)

45 20 11.757 6.190 3.179 2.699

V3(X. index + 2g Chlorella)

38 18 8.153 2.334 2.275 0.758

V4 (infested with X. index and non treated plants)

29 10 4.435 1.277 0.896 0.677

V6 (uninfested +0.5g Chlorella)

42 13 5.261 2.864 2.001 1.656

V7 (uninfested + 1g Chlorella)

53 23 12.298 4.249 4.348 2.253

V8 (uninfested + 2g Chlorella)

40 19 7.722 2.308 1.561 0.689
GD 5 %
GD 1%
GD 0.1 %
3.600
4.884
6.555
2.632
3.571
4.793
2.361
3.204
4.300
1.753
2.378
3.190
0.789
1.071
1.438
0.897
1.218
1.634
Table 2: Morphological characteristics of un-grafted grape seedlings cv. Palieri in pot experiment.