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Effect of sorghum grain quality on progeny emergence of Sitophiuls oryzae L. (Coleoptera: Curculionidae)

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Title Effect of sorghum grain quality on progeny emergence of Sitophiuls oryzae L. (Coleoptera: Curculionidae)
Not Available
 
Creator Padmaja, P.G., Shwetha, B.L., Kalaisekar, A., Elangovan, M. and Vilas A Tonapi
 
Subject Sitophilus oryzae, sorghum, grain damage, weight loss, α-amylase inhibitor, progeny emergence, host resistance, IPM
 
Description Not Available
In this study, twenty sorghum- Sorghum bicolor (L.) Moench germplasm lines had been evaluated for their
resistance to the stored grain pest, Sitophilus oryzae (L.). Observations were made on grain damage and
weight loss, inhibitory effect of gut α-amylases, adult mortality and progeny emergence. The results reveal
that grain weight loss and α-amylase inhibitory effect are the most significant factors that influence the
progeny emergence. The resistant germplasm line IS 920 exhibited minimum grain weight loss (8.2%) and
maximum α-amylase inhibitory effect resulting in significantly lesser progeny emergence along with least
grain damage (17%). The inhibitory effect of enzyme inhibitors isolated from sorghum, when examined
on gut α-amylase, it was observed that amylase inhibitors inhibited S. oryzae α- amylases appreciably;
maximum inhibition being for IS 920 (82.8%) indicating that these α-amylase inhibitors could be used
in IPM. The two parameters viz., grain weight loss and α-amylase inhibitory effect could be relied upon
for selecting the resistant genotypes against S. oryzae in sorghum.
Not Available
 
Date 2024-07-29T12:46:52Z
2024-07-29T12:46:52Z
2019-01-01
 
Type Journal
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/83951
 
Language English
 
Relation Not Available;
 
Publisher Not Available