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Biochemical basis of host-plant resistance to shoot and fruit borer, Diaphania caesalis Wlk. in jackfruit (Artocarpus heterophyllus Lam.)

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Title Biochemical basis of host-plant resistance to shoot and fruit borer, Diaphania caesalis Wlk. in jackfruit (Artocarpus heterophyllus Lam.)
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Creator Pritee Singh, J. Jyothi, PV Rami Reddy and KS Shivashankara
 
Subject Antioxidant activity, Diaphania caesalis, epicuticular wax, jackfruit, phenols
 
Description Not Available
Shoot and fruit borer, Diaphania caesalis Wlk. is a major pest of jackfruit, which feeds on tender shoots,
flowers, leaf buds and fruits that leads to reduce yield and quality. Studies were conducted to understand the relationship
between host-plant resistance and biochemical attributes. Total phenol, antioxidant activity and epicuticular wax were
evaluated in contrasting jackfruit accessions to understand the biochemical basis of resistance and susceptibility
against D. caesalis. The study revealed that total phenol content and radical scavenging activity (DPPH) were higher
in resistant accessions. However, on the contrary, higher wax content was observed in susceptible accessions compared
to the resistant ones. Correlation studies between percent bud damage caused by D. caesalis with these biochemical
parameters unveiled that total phenols and DPPH activity had a significant negative correlation, while epicuticular
wax had a significant positive relationship with percent bud damage. These results suggest that a combination of
these biochemical attributes like phenol and DPPH activitymay contribute to plant resistance, which might be used as
markers in selection of resistant jack fruit sources against the target pest.
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Date 2019-03-18T06:46:49Z
2019-03-18T06:46:49Z
2018-06-01
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/17351
 
Language English
 
Relation Not Available;
 
Publisher Not Available