Nanotechnology is one of the most rapidly advancing sciences and possess potential to revolutionize many disciplines of science, technology, medicine and agriculture. Conversion of macromaterials in to nano size particles (1-100 nm) gives birth to new characteristics and the material behaves differently. Nanoparticles can be produced by different methods, chemical and biological, the former is commercially used. Nanomaterials can be potentially used in the crop protection, especially in the plant disease management. Nanoparticles may act upon pathogens in a way similar to chemical pesticides or the nanomaterials can be used as carrier of active ingredients of pesticides, host defence inducing chemicals, etc. to the target pathogens. Because of ultra-small size, nanoparticles may hit/target virus particles and may open a new field of virus control in plants.

2. Department of Plant Pathology
S.K.N. College of Agriculture, Jobner
(S. K. N. Agriculture University, Jobner)
Speaker- Mr. Shivam Maurya
Ph. D. Student
Seminar Incharge-
Dr. Shailesh Godika
Implementation of Nanotechnology and its Role in Plant Diseases
Management
Doctoral Seminar-1
On

3. 1. Introduction
2. What is nanotechnology
3. Definitions
4. How did nanotechnology evolve
5. Applications of nanotechnology
6. Mode of action of nanoparticles
7. Case studies
8. Conclusion.
Contents

4. Introduction
 In recent decades,
agricultural land and soil
pollution with hazardous
elements and compounds
present in industrial and
urban wastewater are the
most important factors that
limiting crop and food
production in the world.
Nanostructured catalysts are
able to eliminate the harmful
components of agricultural
ecosystems as a safe.
 This nanotechnology
application will help to
reduce pollution and to
make agriculture more
environmentally friendly
with use of nano filters
for industrial waste water
treatment, nano powders
for gas pollutants
treatment, and nano tubes
for storage clean
hydrogen fuel
(Anonymous, 2009).

5. What is Nanotechnology?
The term Nanotechnology originates from 2 words
Nano– Greek word meaning “dwarf”
Technology- Visualize, characterize manipulate and
produce matter of the size 1 – 100 nm.

6.  Norio Taniguchi
 The term “Nanotechnology” coined in
1974 at the University of Tokyo.
How did nanotechnology evolve….?
 Richard Feynman (Nobel laureate)
 In 1959, speech to the American
Physical Society
“There’s plenty of room at the bottom”

7. • Eric Drexler
Student of Feynman
 In 1986, book-
“Engines of Creation-
The Coming Era of
Nanotechnology”
 In 1988, taught first
course on
Nanotechnology
Cont…

8. A nanometer is one-billionth of a meter. A
sheet of paper is about 100,000 nanometers
thick; a single gold atom is about a third of a
nanometer in diameter. Dimensions between
approximately 1-100 nm are known as the
nanoscale.
U.S. National Nanotechnology Initiative (NNI)

9. What is unique about that?
Small size (high surface to volume ratio)
Higher hardness
Super plasticity at high temperature
High chemical selectivity of surface
High mobility in plant, microorganism and environment

13. Mechanica
l
Engineerin
g Information
technology
Agricultur
e
Physics
Chemistr
y
Biology
Mathematica
l science
Imaging
technolo
gy Applications of
Nanotechnology
Applications of Nanotechnology

14. Bio-processing
Plant disease
management
Crop
Improvement
Nano-
biotechnology
Gene expression
& Regulation
Plant disease
diagnostics
Efficient
pesticides and
fertilizers
Applications of Nano-technology
Post Harvest
Technology
Precision
agriculture
Cont…

15. Different types of
nanoparticles
Biopolymer
nanoparticle
 Chitosan
Metallic
nanoparticle
 Silver nanoparticle
 Silica nanoparticle
 Copper nanoparticle
 Zinc nanoparticle

16. Worrall et al., 2018
Studies conducted on insecticides, fungicides and herbicides (including
biocides) loaded onto nanoparticles

17. Mode of action

18. Case studies

19. Park et al., 2006
Effect of silver nanoparticles on the fungal hyphal growth
Fungal genera: Rhizoctonia solani, S. sclerotiorum and S. minor.
1

20. Sharma et al., 2012
2

21. Colletotrichum gloeosporiodes
Dematophora necatrix
Fusarium oxysporum
Control
Control
Control

22. Aqleem et al., 2019
3

24. Sharma et al., 2012
4

26. Aqleem et al., 2019
5

28. Mendes et al., 2014
6

30. Kim et al., 2012
7

31. Kasprowicz et al., 2010
8

32. Spores and mycelia of powdery mildews treated with 50 ppm silver nanoparticles WA-CV-WA13B and
observed with scanning electron microscope over four days with two-day interval.
(Lamsal et al., 2011)
9

33.  Nanotechnology helps agricultural sciences and reduce
environmental pollution by production of pesticides and chemical
fertilizers by using the nano particles and nano capsules with the
ability to control or delayed delivery, absorption and more effective
and environmentally friendly and production of nano-crystals to
increase the efficiency of pesticides for application of pesticides
with lower dose.
Conclusion
 Nanotechnology is considered to be one of the potential sources
for crop protection and production system. Use of nanotechnology
could be a promising way for enhancing agricultural production