| Abstrakt: |
Nematodes represent a large percentage of soil biodiversity and are one of the most common organisms in soil ecosystems. Plant-parasitic nematode that causes significant crop losses all over the world. Meloidogyne incognita is one of the most common dangerous species to damage the root portion of plants. M. incognita-affected plants exhibit decreased cultivation, reduced development and yellowing of the leaves with dry tips and corners. Furthermore, there is decay of roots and gall forms. Zinc is a necessary component for plant growth and ZnO NPs are similarly essential in supporting disease defense mechanisms as they promote plant growth. When produced using environmentally friendly methods, these nanoparticles, which have been studied in a variety of fields, exhibit, anti-inflammatory, antimicrobial, and antioxidant, properties. This study analyzes the environmentally friendly synthesis of green synthesized ZnO NPs with an aqueous root extract from Tagetes erecta to examine the UV-Vis which showed an identifiable surface plasmon resonance (SPR) peak at 352 nm. Fouriertransform infrared spectroscopy (FTIR) was used to confirm the presence of frequency ranges at 3537.25, 2439.72,1373.94, 686.52, and 412.73cm-1 for the produced ZnONPS. The Debye-Scherrer equation was used to find the average crystalline size of the produced ZnoNPs, and the result was 29.34nm. These results indicate that most ZnO NPs aggregated into hexagonal in shape. The effects on second-stage juveniles (J2) larval mortality of the root-knot nematode Meloidogyne incognita, we carried out further in vitro analyses at various doses (100, 250, 500, 750, and 1000 μg/ml) and time intervals (24, 48, 72, 96, 120, and 144 hours). However, the maximum larval mortality rates (76.75% and 100% within 24 hours) were observed at doses of 750 and 1000 μg/ml. This study showed the effect of green synthesized ZnO NPs was found to influence the second-stage juveniles (J2) Meloidogyne incognita. [ABSTRACT FROM AUTHOR] |
