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Table 7 Influence of purified chitinase and commercially available anti-nematicidal agent on plant growth promotion (Vigna radiata) under controlled conditions

From: Statistical optimization of chitinase production by Streptomyces rubiginosus SP24 and efficacy of purified chitinase to control root-knot nematode infection in Vigna radiata under controlled conditions

Plant growth parameters

Control

Set-1

Set-2

Set-3

Shoot length

9.36b

14.83b

13.2b

12.46b

Root length

6.6c

6.83c

5.13c

6.32c

Total plant height

15.96a

21.66a

18.33a

18.83a

Shoot weight

0.408de

0.444d

0.308de

0.224de

Root weight

0.04f

0.029f

0.011g

0.01f

Total plant fresh weight

0.448d

0.474d

0.319de

0.234de

Shoot weight

0.038f

0.093f

0.028 g

0.018f

Root weight

0.009f

0.018f

0.007 g

0.0053f

Total plant dry weight

0.048f

0.111f

0.035 g

0.023f

Chlorophyll a

0.119f

0.27e

0.3de

0.29de

Chlorophyll b

0.225ef

0.495d

0.482d

0.477d

Carotenoid

0.085f

0.138f

0.132ef

0.137f

  1. Control (2 pots), set-1, 2 and 3 are replicates of three pots, and each set is the mean average of three seedlings/pot. Control—addition of only water (pots 1 and 2)
  2. Set-1 contained only chitinase:organic manure formulation (pots 3, 4 and 5)
  3. Set-2 contained chitinase:organic manure formulation as well as 10 ml of inoculum volume of nematodal suspension added near roots of plant (pots 6, 7, and 8)
  4. Set-3 contained fenamiphos: organic manure formulation as well as 10 ml of inoculum volume of nematode suspension added near the roots of the plant at the beginning of the experiment (pots 9, 10, and 11)
  5. Statistical analysis results showed values with the same letters (a, b, c, d, e, f, g) within the column were not significantly different and values with different letters within the column were significantly different from each other according to Duncan’s test