Effect of Pollination on Qualitative Characteristics of Rapeseed (Brassica campestris L. var. toria) Seed in Chitwan, Nepal
An experiment was conducted to determine the effect of pollination on seed quality of rapeseed in Chitwan, Nepal during 2012-2013. The experiment was designed in Randomized Complete Block with four replications and five treatments. The rapeseed plots were caged with mosquito nets at 10% flowering except natural pollination. Two-framed colonies of Apis mellifera L. and Apis cerana F. were introduced separately for pollination, and control plot caged without pollinators. The highest germination percent was observed on Apis cerana F. pollinated plot seeds (90.50% germination) followed by Apis mellifera L. pollinated plots (87.25 %) and lowest on control plots (42.00% germination) seeds. Similarly, seed test weight of Apis cerana F. pollinated plots (3.22 gm/ 1000 seed) and Apis mellifera L. pollinated plots (2.93 gm/1000 seed) were and lowest on control plots (2.26 gm/ 1000 seed) recorded. Likewise, oil content was recorded highest on pollinated by Apis cerana F. (36.1%) followed by pollinated by Apis mellifera L. (35.4%) and lowest on control plots (32.8%). This study clearly indicated pollination increases the seed quality of rapeseed and therefore, management of honeybee is necessary for producing higher quality of rapeseed under Chitwan condition.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1099496Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2211
 MoAC, ‘Statistical information on Nepalese agriculture.’ Government of Nepal Ministry of Agriculture and Co-operatives Agri-Business Promotion and Statistics Division Singha Durbar, Kathmandu. Nepal. pp. 79, 2011/2012.
 I. H. Williams, ‘The dependence of crop production within the European Union on pollination by honey bees.’ Agricultural Zoology and Reviews, vol. 6, pp. 229-257, 1994.
 H. K., Sharma, J. K. Gupta and J. R. Thakur, ‘Effect of bee pollination and pollinators proportion on apple productivity.’Ac. Hort. vol. 66, no. 2, 2451-454, 2004.
 L. R. Verma, ‘Beekeeping in integrated mountain development: Economic and scientific perspectives.” ICIMOD senior fellowship Series, No. 4 Oxford and IBH Publishing Company. Private. Limited, New Delhi, India, 1990.
 W. E. Robinson and R. A. Morse, “The value of honeybees as pollinators of US crops.” American Bee Journal vol. 129, no. 1, pp. 477- 487, 1989.
 G. C. Dhakal, ‘A comparative study of Apis cerana F. and Apis mellifera L. on pollination of Brassica campestris Var. toria and Fagopyrum esculentum M. at Rampur, Chitwan.” M. Sc. Entomology Thesis TU. IAAS Rampur, Chitwan, Nepal. pp. 76, 2003.
 U. Partap, and T. Partap, ‘Managed crop pollination.’ The missing dimension of mountain crop productivity. Discussion Paper Series No. MFS 97/1, ICIMOD, Kathmandu, Nepal, 1997.
 R. B. Thapa, ‘Honeybee and other insect pollinators of cultivated plants: A review.’ Journal of Institute of Agriculture and Animal Science, vol. 27, pp. 1-23, 2006.
 R. C. Sihag, ‘Management of bees for pollination.’ In: M. Matska, L. R. Verma, S. Wongsiri, K. K. Shrestha and U. Partap (eds.) Asian Bees and Beekeeping-Progress of Research and Development. Proceedings of Fourth Asian Apicultural Association International Conference, Kathmandu. March 23-28, 1998. Oxford and IBH Publishing Company, Private Limited, New Delhi, India, 2000.
 M. Kasina, M. Kraemer, C. Martius and D. Wittmann, ‘Diversity and activity density of bees visiting crop flowers in Kakamega, western Kenya.’ Journal of Apicultural Research, vol. 48, no. 2, pp. 134-139, 2009.
 FAO, ‘Protocol to detect and assess pollination deficits in crops: a handbook for its use.’ Food and Agriculture Organization, Rome Italy. pp. 82, 2011.
 NARC, ‘Introduction of trained bees, Apis mellifera L. for quality seed and higher seed on mustard, Brassica campestris Var. toria in Nepalese condition. ‘Annual Technical Report 2006-2007. Entomology Division, Nepal Agriculture Research Council. Khumaltar, Lalitpur, Nepal. pp. 27-32, 2008.
 P. G. Kevan, and D. Eisikowitch, ‘The effect of insect pollination on canola (Brassica napus L. cv. O.A.C. Triton) seed germination.’ Euphytica, vol. 45, pp. 39-41, 1990.
 U. Partap, and L. R. Verma, ‘Pollination of radish by Apis cerana F.’ Journal of Apiculture Research, vol. 33, no. 4, pp. 237-24, 2010.
 L. R. Verma, and U. Partap, ‘Foraging behavior of Apis cerana indica on cauliflower and cabbage and its impact on seed production.’ Journal Apiculture Research, vol. 33, No. 4, pp. 231-236, 1994.
 H. N. Sattigi, D. W. Rajasekhar, and K. A. Kulkarni, ‘Effect of attractants in enhancing the productivity of watermelon.’ Paper presented at the National Symposium on Environment and Evolutionary Biology. pp. 24, 2001.
 G. S. Guruprasad, ‘Maximization of niger productivity through enhancement of bee pollination.’ M. Sc. Agriculture Thesis, University of Agricultural Sciences, Dharwad, India, 2001.
 B. S. Patil, ‘Role of bee attractants in enhancing productivity and quality of sesame.’ M. Sc. Agriculture Thesis, University of Agricultural Sciences, Dharwad India. pp. 93. 1999.
 S. Murasing, ‘Role of bee attractants in pollination and productivity of mustard (Brassica juncea L.)’ M. Sc. Agriculture Thesis, University of Agricultural Sciences, Dharwad. India, 2000.
 A. N. Mahmood, and B. Furgula. ‘Effect of pollination by insects on seed oil percentage of oil seed sunflower.’American Bee Journal,vol 129, no. 9, 663-667, 1983.
 M. Rajasri, K. Kanakadurga, V. R. Durga., and C. Anuradha, ‘Honeybees potential pollinators in hybrid seed production of sunflower.” International Journal of Applied Biology and Pharmalogy Technology, vol. 3, no. 2, 216-22, 2012.
 M. Kumar, H. Chand, R. Singh, and M. Ali, ‘Effect of different modes of honeybee pollination on oil content in seeds of sunflower (Helianthus annus L.).’ Journal of Entomology Research, vol. 26, no. 3, 219-221, 2002.
 D. Rajagopal, R. N. Kanchraddi, and N. Nagraja, ‘Utilization of honeybees in sunflower hybrid seed production.’ In: M. Matska, L. R. Verma, S. Wongsiri, K. K. Shrestha and U. Partap (eds.). Proceedings of Fourth Asian Bees and Beekeeping-Progress of Research and Development. Proceeding of Fourth Asian Apicultural Association International Conference, Kathmandu. March 23-28, 1998. Oxford and IBH Publication Company Private Limited, India. pp. 283, 2000.
 S. N. Kulkarni, and B. K. Dhanorkar., ‘Effect of Apis cerana indica on niger seed production in Marathawada region.’ Paper presented at FAO Workshop on Sustainable Bee Keeping Development, Dharwad, 1-5 August, 1998.
 R. C. Mishra, and J. K. Gupta. ‘The effect of mode of pollination on yield and oil potential of Brassica campestris L. var. sarson with observation on insect pollinators.’ Journal of Apiculture Research 27 (3): 186-189, 1888.