Gajendra Kumar*1, Shanjay Sharma1, G. Chandel2 and Randeep Kumar Kushwaha1
1Department of Entomology, CoA, IGKV, Raipur, Chhattisgarh, India-492012
2Department of Plant Molecular Biology & Biotechnology, CoA, IGKV, Raipur,
Chhattisgarh India-492012
Received-11.08.2016, Revised-26.08.2016
Abstract: The experiment was undertaken at greenhouse of Entomology and Department of Plant molecular biology &biotechnology, CoA, Raipur during 2014 and 2015.Area marked due to honey dew excretion by BPH under different IR64 Bt rice events ranged from 15.52 to 24.85 mm2. The maximum marked area (24.85 mm2) was observed in IR-64-C followed by TN-1-C (23.58 mm2) with minimum in Ptb-33-C (15.52 mm2) during 2014. Whereas during 2015, new starved female was released and new filter paper was kept inside the funnel to receive the honey dew in all the rice events were ranged from 11.72 to 20.43 mm2. The maximum marked area (20.43 mm2) was observed in IR-64-4 followed by IR-64-1 and TN-1-C (23.58 mm2), respectively and minimum in Ptb-33-C (11.72 mm2). On the basis of two years, pooled mean of honey dew area marked under different rice events was ranged 13.62 to 21.43 mm2. The highest honey dew excreted on IR64 Bt events was noticed (21.43 mm2) in IR-64-4 followed by TN-1-C (20.84 mm2) and minimum in Ptb-33-C (13.62 mm2) within 24hrs. releasing of BPH. The descending order of honey dew excretion by starved female on Bt events was as IR-64-4> TN-1-C > IR-64-C> IR-64-1> IR-64-2> Ptb-33-C. The area of honey dew excretion by female on Bt rice and on non-transgenic control rice plants did not differ significantly.
Keywords: Bt protein, Non-target insect BPH, Honey dew excretion
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