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EFFECT OF CONTROLLED ATMOSPHERE ON THE MANAGEMENT OF RICE WEEVIL, Sitophilus oryzae L. AND LESSER GRAIN BORER, Rhizopertha dominica (F.) INFESTING STORED RICE.

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Title EFFECT OF CONTROLLED ATMOSPHERE ON THE MANAGEMENT OF RICE WEEVIL, Sitophilus oryzae L. AND LESSER GRAIN BORER, Rhizopertha dominica (F.) INFESTING STORED RICE.
 
Creator BABUJI NAIDU, K
 
Contributor SAMBASIVA RAO, N
 
Subject inorganic compounds, grain, rice, biological phenomena, storage structures, fruits, packaging, oxygen, animal developmental stages, storage
 
Description The present investigation on “Effect of controlled atmosphere on the management of rice weevil, Sitophilus oryzae L. and lesser grain borer, Rhizopertha dominica (F.) infesting stored rice” was conducted at the Post Harvest Technology Center, Agricultural College campus, Bapatla, Guntur district, Andhra Pradesh during 2012-13.
The permeability of various packing materials viz. aluminium pouches (AP), poly ethylene glycol (PEG), low density poly ethylene (LDPE) and plastic containers (PC) made of acrylic material to O2 at different levels was studied. The O2 ingression was tested with Checkmate II of PBI Dansensor at 6 h interval up to 60 h. The packing materials were also tested for their suitability to store paddy to avoid damage by rice weevil, Sitophilus oryzae (L.) and lesser grain borer, Rhyzopertha dominica (F.). The observations were recorded on progeny build up and per cent weight loss caused by the both insects at fortnight interval up to 180 days.
Highest permeability of O2 was recorded in PC (2.72%) followed by LDPE 2.67%, AP (1.04%) and PEG (0.71%) over a period of 60 h at 18% O2. All the treatments were significantly different control (20.93%). Similarly, at 14%, the rate of O2 ingression was maximum in PC (6.7%), followed by LDPE (6.08%), AP (4.46%) and PEG (2.2%) over a period of 60 h. The O2 in PC (20.7%) was on par with the O2 in control (20.9%). Correspondingly, at 10% O2 the rate of O2
permeability was more in PC (10.55%), which was followed by LDPE (9.73%), AP (5.53%) and PEG (2.23%) up to 60 h. All the treatments were significantly different from control (20.98%). The permeability of O2 at 6% O2 also followed similar trend with high O2 ingression rate in PC (10.55%), which was further followed by LDPE (10.48%), AP (7.88%) and PEG (3.12%) for 60 h. All the treatments were significantly different from control (20.98%). The order of packing material based on permeability at 6, 10, 14 and 18% O2 was PEG
 
Date 2016-12-22T09:36:25Z
2016-12-22T09:36:25Z
2014
 
Type Thesis
 
Identifier 128P.
http://krishikosh.egranth.ac.in/handle/1/92003
 
Language en_US
 
Relation D5069;
 
Format application/pdf
 
Publisher ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY