G.P. Painkra*, Shiv K. Shrvastava1, S.S. Shaw2 and Rajeev Gupta3
*RMD, College of Agriculture & Research Station, Ambikapur, Distt- Surguja (C.G.) 497001
1,2,3 Department of Entomology College of Agriculture, Raipur ( C.G.)
Email : gppainkrarmd@gmail.com
Received-09.03.2015, Revised-29.03.2015
Abstract: The effect of pollination by Indian honey bee, Apis cerana indica were under taken on different quantitative and qualitative parameters of niger during 2011-12. The higher number of capitulum plant-1 was recorded in treatment total opened (35.17 capitulum-1) however the lowest number of capitulum was recorded in treatment of total closed (28.32 capitulum plant-1). The maximum capitulum weight was found in treatment control i.e. total opened (0.299 g) which was significantly superior but the mimnimum capitulum weight was observed in treatment, total closed (0.079 g). The maximum seed yield plant-1 was recorded in control (total opened 2.473 g plant-1) but the least seeds yield plant-1 was recorded in treatment with total closed (0.606 g plant-1). The sterility per cent was noticed significantly superior in treatment with total closed (97.09 per cent) however lower sterility per cent was recorded in treatment with total opened (4.92 per cent). The significantly higher per cent of healthy seeds were found in control plot, total open (95.06 per cent) but the minimum per centage of healthy seeds were found in treatment total closed (2.89 per cent). Maximum seed weight (1000 seeds) was recorded in treatment total open (4.89 g) however the treatment total closed had minimum seed weight (3.28 g). The significantly highest yield was found in treatment total open (353.25 kg/ha-1) but the lowest seed yield was observed in treatment total closed (79.50 kg/ha-1). Significantly higher oil content was recorded in treatment with total open (33.50 per cent) the lowest oil content was found in treatment with total closed (26.73 per cent). Significantly higher niger seed germination was recorded in treatment with control (80.25 per cent) The lowest germination was found in treatment with total closed (64.25 per cent).
Keywords : Indian honey bee, Apis cerana indica, Oil content, Pollination, Yield parameters, Niger
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