Table 2 Effect of inoculation of PRSV at different crop growth stages of Papaya on percent transmission and symptoms expression.

From: Epidemiological studies on the incidence of papaya ringspot disease under Indian sub-continent conditions

Treatment (Stage of inoculation)

No. of Plant

Per cent transmission (%)

Days for symptom expression after inoculation

Symptoms

Inoculated

Infected

T1−30 DAT**

12

12

100 (90.00)*

15

VC, MS, LR, LD, SS, SG, MO, CR, CS

T2−60 DAT

12

12

100 (90.00)

15

VC, MS, LR, LD, SS, SG, MO, CR, CS

T3−90 DAT

12

12

100 (90.00)

17

VC, MS, LR, LD, SS, SG, MO, CR, CS

T4−120 DAT

12

9

75.00 (60.00)

20

VC, MS, LR, LD, SS, CR, CS

T5−150 DAT

12

7

58.33 (50.00)

24

VC, MS, LR, LD, SS, CR, CS

T6−180 DAT

12

3

25.00 (30.00)

25

VC, MS, LR, LD,

T7−210 DAT

12

1

8.33 (10.00)

25

VC, MS

T8−240 DAT

12

1

8.33 (10.00)

26

VC, MS

T9−270 DAT

12

1

8.33 (10.00)

28

VC

T10-Un inoculated

0

0

0.00 (0.00)

0

-

S Em ±

  

5.85

  

C D @ 5%

  

17.37

  
  1. *Figures in parentheses are arc sine transformed values, **DAT: Days After Transplanting, VC-Vein Clearing; MS-Mosaic Symptom; LR-Leaf Reduction, LD-Leaf Distortion; SS-Shoe String; SG-Stunted Growth; MO-Mottling; CR-Chlorotic Ring and CS-Chlorotic Spots on fruits.
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