Abstract
Nutrients are vital for plant growth as well as disease severity and control. Utilization of nanotechnologies in agriculture sectors is expected to be the ideal material to enhance plant resistance after perception of specific biotic or abiotic signals commonly referred to as induced resistance. Three mineral and nano-fertilizer particles were examined for their efficacy as a soil amendment in controlling the root knot nematode, Meloidogyne incognita on tomato in a greenhouse trial. A randomized complete block design layout was used for 9 treatments with 5 replications. Each plant was inoculated with 1,000 M. incognita eggs. Undoubtedly, the utilization of three fertilizers as mineral or nano-particles on tomato plants cv. Giza 86 under the stress of M. incognita infection significantly (p ≤ 0.05) reduced the number of galls and egg masses as well as enhanced plant growth criteria. The application of nano-fertilizers was more effective than mineral ones. The nano fertilizer Zn oxide was the most effective treatment among all the treatments. Key words: Disease severity, Meloidogyne incognita, nano-fertilizer, tomato, resistance.
Highlights
Meloidogyne incognita is the root-knot nematode (RKN), well-known as one of the most adverse phyto-pathogens all over the world (Trudgill and Blok, 2001), that cause severe damage on vegetable crops in tropical and subtropical areas (Sikora and Fernandez, 2005)
Plant resistance can be enhanced after perception of specific biotic or abiotic signals normally referred to induced resistance mechanism
It was clear that all fertilizers either as mineral or nanoparticles significantly induced the reduction of the galls number and egg masses compared to untreated inoculated control
Summary
Meloidogyne incognita is the root-knot nematode (RKN), well-known as one of the most adverse phyto-pathogens all over the world (Trudgill and Blok, 2001), that cause severe damage on vegetable crops in tropical and subtropical areas (Sikora and Fernandez, 2005). Current research has publicized that plant resistance is alternative management too confirmed as safe to environmental system and economically viable means of controlling RKN. Plant resistance can be enhanced after perception of specific biotic or abiotic signals normally referred to induced resistance mechanism. The induced resistance can be extensive permanent and is often associated with a sensitization of basal defense responses (Pastor et al, 2013). Nutrients are important for plant growth and development as well as for phyto- pathogens disease severity and control (Agrios, 2005; Huber and Graham, 1999).
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