females. While, using application one S. platensis week before the inoculation of recorded M. incognita 82.14% reduction of number of females. Data in Fig (3) show that the application of AgNPs one week before the inoculation of M. recorded 89.29% reduction of average incognita numbers of development stage. While, using B. or at the same time inoculation Figure 2. Effect of biotic and a biotic elicitors on subtilis S. marcescens of recorded 85.71% reduction of average percentage reduction of reduction of number of M. incognita numbers of development stage. females Figure 1. Effect of biotic and a biotic elicitors on percentage reduction of second stages juveniles Figure 3. Effect of biotic and a biotic elicitors on percentage reduction of reduction of developmental stages 3.2. Photosynthetic pigments 2. Effect of some elicitors and time of application and their interactions on chlorophyll (a), chlorophyll (b), total chlorophyll (a+b) and carotenoids of tomato plants, infected with under greenhouse Meloidogyne javanica conditions Treatment Chlorophyll Chlorophyll Chlorophyll Carotenoids (a) (b) (a+b) mg/g fresh e Time of application Material mg/g fresh mg/g fresh mg/g fresh weigh weight weight weight 2 9.82 i 4.23 g 14.05 h 2.92 h B. subtilis 2 11.42 e 4.66 16.08 e 3.26 e S. marcescens One week before infection 4 15.35 b 6.69 b 22.05 b 4.06 b S. platensis 2 AgNPs 11.24 g 4.73 d 15.97 f 3.12 f 2 At the same time of 10.92 h 4.53 f 15.46 g 3.12 f B. subtilis infection
females. While, using S. platensis application one week before the inoculation of M. incognita recorded 82.14% reduction of number of females. Data in Fig (3) show that the application of AgNPs one week before the inoculation of M. incognita recorded 89.29% reduction of average numbers of development stage. While, using B. subtilis or S. marcescens at the same time inoculation of M. incognita recorded 85.71% reduction of average numbers of development stage. Figure 1. Effect of biotic and a biotic elicitors on percentage reduction of second stages juveniles Figure 2. Effect of biotic and a biotic elicitors on percentage reduction of reduction of number of females Figure 3. Effect of biotic and a biotic elicitors on percentage reduction of reduction of developmental stages 3.2. Photosynthetic pigments 2. Effect of some elicitors and time of application and their interactions on chlorophyll (a), chlorophyll (b), total chlorophyll (a+b) and carotenoids of tomato plants, infected with Meloidogyne javanica under greenhouse conditions Treatment Chlorophyll (a) mg/g fresh weight Chlorophyll (b) mg/g fresh weight Chlorophyll (a+b) mg/g fresh weight Carotenoids mg/g fresh weigh Time of application Material One week before infection B. subtilis 2 9.82 i 4.23 g 14.05 h 2.92 h S. marcescens 2 11.42 e 4.66 e 16.08 e 3.26 e S. platensis 4 15.35 b 6.69 b 22.05 b 4.06 b AgNPs 2 11.24 g 4.73 d 15.97 f 3.12 f At the same time of infection B. subtilis 2 10.92 h 4.53 f 15.46 g 3.12 f
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