%0 Journal Article
%T Induction of Anthracnose Disease Resistance on Chili Fruit by Treatment of Oligochitosan¡ªNanosilica Hybrid Material
%A Pham Dinh Dzung
%A Le Thanh Hung
%A Le Si Ngoc
%A Hoang Dac Hiet
%A Bui Van Le
%A Nguyen Tien Thang
%A Dang Van Phu
%A Nguyen Ngoc Duy
%A Nguyen Quoc Hien
%J Agricultural Sciences
%P 1105-1113
%@ 2156-8561
%D 2017
%I Scientific Research Publishing
%R 10.4236/as.2017.810080
%X <div style=\"text-align:justify;\">
	Oligochitosan (OC) with molecular weight Mw of 5000 g/mol was prepared
by gamma Co-60 ray irradiation of chitosan solution. Nanosilica (nSiO<sub>2</sub>) with
the size of 10 - 30 nm was synthesized by calcination of acid treated rice husk.
The mixture of 1% OC - 1% nSiO<sub>2</sub> was prepared by dispersion of nSiO<sub>2</sub> in OC
solution. The morphology of nSiO<sub>2</sub> in the mixture of OC-nSiO<sub>2</sub> was measured
from images of transmission electron microscopy (TEM). The effect of foliar
application of the mixture of OC-nSiO<sub>2</sub> on the induction of resistance against
anthracnose disease caused by <i>Colletotrichum gloeosporioides</i> fungus on chili
fruits was investigated. Results indicated that foliar application of OC-nSiO<sub>2</sub> with the concentration of 60 mg/l - 60 mg/l was found to be as the optimal
treatment that reduced the disease severity on chili fruits to 22.2% compared
with 90.0% of the control. Thus, OC-nSiO<sub>2</sub> hybrid material could be considered
as an effective biotic elicitor to prevent anthracnose disease infection for
chili fruits. Furthermore, the prepared OC-nSiO<sub>2</sub> hybrid material can also be
used as an environmentally friendly agrochemical product for sustainable development
of agriculture.
</div>
%K Oligochitosan
%K Nanosilica
%K Chili Fruit
%K &lt
%K i&gt
%K Colletotrichum gloeosporioides&lt
%K /i&gt
%K Anthracnose
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=79769