The pollination biology of onion (Allium cepa L.)- A Review

DOI: 10.5958/0976-0741.2015.00001.X    | Article Id: R-1491 | Page : 1-13
Citation :- The pollination biology of onion (Allium cepa L.)- A Review.Agricultural Reviews.2015.(36):1-13
Sunita Devi, Rachna Gulati, Kanika Tehri* and Asha Poonia knkzoology@gmail.com
Address : Department of Zoology, CCS Haryana Agricultural University, Hisar-125 004, India.

Abstract

Managed pollination is an essential input in enhancing the crop productivity. In recent years, there has been an increase in the accumulation of data to indicate that seed yields of insect pollinated crops may often be lower than the expected, not because of adverse climatic, edaphic or cultural factors, but simply because the number of certain pollinators is inadequate. In absence of pollination in many entomophilous crops, fruit or seed set is affected adversely even if all the cultural practices are followed meticulously. Insect pollinators set a greater proportion of early flowers of the crop and increase quality and quantity of the seed yield. Before the use of managed pollination, it is necessary to have a basic knowledge of factors which influence pollinator activity and preference of the pollinators for different crops. This review summarizes the pollination biology of the important vegetable crop, Allium cepa L., commonly known as onion.

Keywords

Abundance Floral biology Male sterility Mode of pollination Onion Pollinators Yield.

References

  1. Abrol, D.P. (2006). Diversity of pollinating insects visiting litchi flowers (Litchi chinensis Sonn.) and path analysis of environmental factors influencing foraging behaviour of four honeybee species. J. Apic. Res., 45(4): 180–187.
  2. Abrol, D.P. and Kapil, R.P. (1991).Foraging strategies of honeybess and solitary bees as determined by nectar-sugar components.Proc. Indian Nat. Sci. Acad. B, 57(2): 127-132.
  3. Alam, M.Z. and Quadir, M.A. (1986). Role of honey bees in fruit and seed setting of bottle gourd, Lagenaria siceraria (Mol.) Staudl.Punjab Vegetable Grower,21: 32-34.
  4. Alam, M.Z., Quadir, M.A. and Ali, M.S. (1987).Pollination behaviour of honeybee (Apisindica) and the influence on seed production of cauliflower. Bangladesh Hortic.,15(1): 25-30.
  5. Ali, M., Dowker, B.D., Currah, L. and Mumford, P.M. (1984).Floral biology and pollen viability of parental lines of onion hybrids.Ann. Appl. Bio., 104: 167–174.
  6. Amaral, E., Mitidieri, J. and Vencousky, R. (1963). Studies on the activities of Apis mellifera L. while visiting the flowers of Cucumis sativus L. Olericultura,3: 181-193.
  7. Anderson, D.L., Sedgeley, M., Short, J.R.T. and Allwood, A.J. (1982).Insect pollination of mango in northern Australia.Australian J. agric. Res.,33: 541-548.
  8. Backman, W.W. and Waller, G.D. (1971).Honeybee responses to sugar solutions of different composition.J. apic. Res.,16: 165-169.
  9. Baker, H.G., Cruden, R.W. and Baker, I. (1971). Minor parasitism in pollination biology and its community function: the case of Ceiba acuminate.Bio. Sci.,21:1127-1129.
  10. Belluscci, S. and Marques, M.D. (2001).Circadian activity rhythm of the foragers of a eusocial bee (Scaptotrigona affdepilis, Hymenoptera, Apidae, Meliponinae) outside the nest.Biol. Rhythm Res.,32 (2): 117–124.
  11. Benedek, P. (1976). Effect of environmental factors on the foraging rates of honey bees in red clover fields. Zeitschrift fur Angewandte Entomologie,81(1): 14-20.
  12. Benedek, P. and Gaal, E. (1972).The effect of insect pollination on seed onion with observations on the behaviour of honey bees on crop.J. Apic. Res., 11:175-180.
  13. Bohart, G. E., Nye, W.P. and Hawthorn, I. R. (1970). Onion pollination as affected by different levels of pollinator activity. Utah agr. Expt. Sta. Bull.,482: 60.
  14. Brantjes, N.B.M. and Leemans, J.A.A.M. (1976). Silane oties (Carryophyllaceae) pollinated by nocturenal Lepidoptera and mosquitoes. Acta Botanica Neerlandica, 25: 281-285.
  15. Brewer, J.W. (1974). Pollination requirements for watermelon seed production. J. apic. Res., 13(3): 207-212.
  16. Burill, R.M. and Dietz, A. (1981).The response of honey bee to variation in solar radiation and temperature.Apidologie, 12 (4): 319-328.
  17. Cervancia, C.R. and Bergonia, E.A. (1991).Insect pollination of cucumber (Cucumis sativus L.) in the Philippines.The Sixth International Symposium on Pollination, Tilburg, Netherlands, 27-31 August 1990, 278-282.
  18. Chandel, R.S., Thakur, R.K., Bhardwaj, N.R., and Pathania, N. (2004). Onion seed crop pollination: a missing dimension in mountain horticulture. Acta Hortic.,631: 79-86.
  19. Chaudhary, N. (2004). Factors influencing inter and intra specific preferences of honey bee for three concurrently flowering vegetable/ spice crops. Ph.D Thesis, CCSHAU, Hisar. 96+xxviii pp.
  20. Chaudhary, N. and Sihag, R.C. (2003).Diversity, foraging behaviour and foraging efficiency of different pollinators of visiting onion (Alilum cepa L.) blossoms.Korean J. Apic., 18(2): 103-108.
  21. Choi, S.Y. (1987). Foraging activity of insects on weigh onion flowers (Allium sistulosum). Korean J. Apic.,2(2): 67-74.
  22. Cirudarescu, G. (1971). Pollinators of lucerne and factors influencing their effectiveness in South Eastern parts of Birse depression. Analele Universitati Bucuresti. Biologica Animale, 20: 77–81.
  23. Collison, C.H. (1976). The interrelationship of honeybee activity, foraging behaviour, climatic conditions and flowering in the pollination of pickling cucumber, Cucumis sativus L. Ph.D. Thesis, Michigan State University, USA, 268pp.
  24. Collison, C.H. and Martin, E.C. (1979).Behaviour of honey bees foraging on male and female flowers of Cucumis sativus.J. apic. Res.,18: 184-190.
  25. Collison, C.H. (1973). Nectar secretion and how it affects the activity of honey bees in the pollination of hybrid pickling cucumbers, Cucumis sativus L. M.Sc. Thesis, Michigan State University, East Lansing, USA.
  26. Corbet, S.A. (1978). A bees view of nectar. Bee Wld.,59: 25-32.
  27. Crailsheim, K. (1991). Interadult feeding of jelly in honey bees (Apis mellifera L.) colonies.J. Comp. Physiol.161B: 55-60.
  28. Crane, E. (1990). Bees and Beekeeping.Bath Press Ltd., Avon., 68-69pp.
  29. Deodikar, G.B. and Suryanaryana, M.C. (1972).Crop yields and bee pollination.Indian Bee J., 4: 53-64.
  30. Devillers, J., Dore, J.C., Tisseur, M., Luzeau, S. and Maurin, G. (2004). Modelling the flight activity of Apis mellifera at the hive entrance.Computers andElectronics in Agriculture, 42(2): 87–109.
  31. Emlen, J.M. (1966). The role of time and energy in food preference.American Naturalist, 100: 611-617.
  32. Ewies, M.A. and El-Sahhar, K. (1977).Observation on the behaviour of honeybee on onion and their effect on seed yield.J. Apic Res., 16: 194-196.
  33. Fahn, A. (1949). Studies in the ecology of nectar secretation.Palest. J. Bot. Ser,4: 207-224.
  34. FAO.(2002). Production Year Book, 56.
  35. Free, J. B. (1960). The behaviour of honey bees visiting the flowers of fruit trees. J. Anim. Ecol.,29: 385-395.
  36. Free, J.B. (1993). Insect Pollination of Crops.Academic Press. London, U.K. 684pp.
  37. Free, J.B., Williams, I.H., Longden, P.C. and Johnson, M.G. (1975).Insect pollination of sugar beet (Beta vulgaris L.) seed crops.Ann. Appl. Biol.,81: 127-134.
  38. Frisch, K.Von. (1950). Bees, Their Vision Chemical Sense and Language.Cornell Univ. Press, Ithaca, New York.
  39. Gary, N.E. (1975). Activities and behaviour of honey bee. In: The Hive and Honeybee.Dadant and sons, Illinois, Hamilton, 237-240 pp.
  40. Gegear, R.J. and Thomson, J.D. (2004). Does the flower constancy of bumble bees reflect foraging economics.Ethology.,110: 1-2.
  41. Gilbert, F.S. (1980). Flower visiting by hoverflies (Syrphidae). Ann. Res. Ecol. Syst., 6: 139-170.
  42. Gill, S.S., Kaushik, H.D. and Sharma, S.K. (2001).Pollination efficiency of three Apis spp. foraging on phalsa (Grewia subinaequalis D.C.).Ann. Ent., 19(1): 19-21.
  43. Gjorgji, M. and Rukie, A. (1997). The effects of pollination and the use of bees on number and quality of onion seed 1. Balkan Symposium on vegetables and potaoes, ISHS.Acta Hortic.,462: 12.
  44. Glukhov, M.M. (1955). Honey Plants. Izd-vo Seikhoz Zit-ry (In Russian): 512 PP. Izd. 6, Perer-1 Dop. Maskva, Gos.
  45. Gupta, J.K., Mishra, R.C. and Kumar, J. (1984).Plectranthus as forage for Apis cerana indica F. and Apis mellifera L. Apidologie,15(1): 75-82.
  46. Haglar, J.R., Cohen, A.C. and Loper, G.M. (1990).Production and decomposition of onion nectar and honey bee foraging activity in Arizon.Env.Ent.,19(2): 327-331.
  47. Hamilton, R.P. (1946). Onions need bees. Gleanings Bee Cult.,74: 23.
  48. Harrison, J.F. and Fewell, J.H. (2002).Environmental and genetic influences on flight metabolic rate in the honeybee, Apis mellifera.Comparative Biochem.Physio.,133(2): 323–333.
  49. Heinrich, B. and Raven, P.H. (1972).Energetics and pollination ecology.Science, 17: 597-602.
  50. Hwang, H.J., Suk, J.K. and Ha, I.J. (1998).Effect of Pollinating insect on seed yield in seed production of onion (Allium Cepa L.).J. Hortic. Sci., 40(2): 27-30.
  51. Inouye, D.W. (1980). The effect of proboscis length and corolla tube lengths on patterns and rates of flower by bumble bees.Oecologia, 45: 197-201.
  52. Jaboñski, B., Skowronek, J., Woyke, H.W. and Doruchowski, R. W. (1982) .Biologia witnienia, nektarowanie, zapylanie i owocowanie mêskosterylnych linii cebuli (Allim cepa L.).Pszczel.Zesz.Nauk.,26: 57-104.
  53. Jadhav, L.D. (1981). Role of insects in the pollination of onion (Allium cepa L) in the Maharastra state, India.Indian bee J., 43: 61-63.
  54. Jain, K.L. and Kapil, R.P. (1980).Foraging rhythm of megachilid bees in relation to the flowering of Medicago sativa L. and Parkinsonia aculeateL. Indian Bee. J.,42: 35-38.
  55. Jamieson, C.A. and Austin, G.H. (1956).Preference of honey bee for sugar solution.Proc.10th int. Congr.Entomol. Montreal,4: 1059-1065.
  56. Jones, H.A. (1933) Vegetable breeding at the university o California. Proc. Am. Soc. Hortic. Sci., 29:572-581.
  57. Jones, H.A. and Emsweller,S.L. (1933). Methods of breeding onions.Hilgardia, 7: 625-642.
  58. Jula, F., Privu, E. and Ilyes, G. (1965). The melliferous value of sainfoin (Onobrychis vichfolia) and onion (Allium cepa L.) under the soil and climatic condition around .Clij.Lucr.Stint.Inst.Agron.Cluj., 21: 99-106.
  59. Kalmath, B.S. and Sattigi, H.N. (2004).Effect of bee pollination by using attractants on the qualitative parameters of onion seed.J. Pest Manag.Econ. Zool., 12(1): 97-99.
  60. Kapil, R.P. and Brar, H.S. (1971).Foraging behaviour of Apis florea F. on Brassica campestris var toria.In: Proceedings of XXIIth International Congress of Apiculture, Moscow, 335–339.
  61. Kapil, R.P. and Jain, K.L. (1980).Biology and utilization of insect pollinators for crop production.Final Tech. Report, Department of Zoology, Haryana Agricultural University, Hisar, India, 81p.
  62. Kapil, R.P. and Kumar, S. (1974). Foraging activity of Apis dorsata F. on Brassica juncea Czern and Coss.J. Bombay Natural History Soc., 71(2): 327–331.
  63. Kochetov, A.S. (2004). Use of Carpathian bees for cucumber pollination in film greenhouses.Kartofel Ovoshchi, 6: 28.
  64. Kordakova, Z.M. (1956). Honey bees and pollination of seed plants of the common onion. In: Pollination of agricultural plants (eds. Krishchunas, I.V. and Gubin, A.F.). Moskva, Gos. Izd-vo Selkhoz Lit-r: 163-171.
  65. Kumar, J., Mishra, R.C. and Gupta, J.K. (1985).The effect of mode of pollination on Allium species with observations on insects as pollinators24.J. apic. Res., 24:62-66.
  66. Kumar, J., Mishra, R.C. and Gupta, J.K. (1989).Effect of honeybee pollination on onion (Allium cepa L) sedd production.Indian Bee J., 51:1, 3-5.
  67. Kumar, K. (2002). Studies on insect pollinators of sunflower (Helianthus annuus L.). M.Sc. Thesis, Haryana Agricultural University, Hisar, Haryana, India.
  68. Kumar, R. (2004). Role of Apis melliferaL. in pollination of cucumber (Cucumis sativus L.) under poly-house conditions. M.Sc. Thesis, Haryana Agricultural University, Hisar, Haryana, India.
  69. Kumar, S. (2002).Studies on the activities of insect pollinators of cucurbit crops. M.Sc. Thesis, Haryana Agricultural University, Hisar, Haryana, India.
  70. Kuti, J.O. and Rovelo, C. (1992). Effect of pollination techniques on fruit set and seed yield of egusi melon (Citrullus colocynthis). Report Cucurbit Genetics Cooperative,15: 80-81.
  71. Kwon, Y.J. and Saeed, S. (2003). Effect of temperature on the foraging activity of Bombus terrestris L. (Hymenoptera: Apidae) on greenhouse hot pepper (Capsicum annuum L.) Appl. Entomol. Zool.,38(3): 275-280.
  72. Le Baron, F.C. (1962). Onion seed sample costs and production. Calif. Agr. Ext. Sen., Cost Data Sheet 22, Leaflet.
  73. Lerer, H., Bailey, W.G., Mills, P.F. and Panki, W.M. (1982).Pollination activity of Megachile rotundata (Hymenoptera; Apidae).Env.Ent.,11: 997-1000.
  74. MacArthur, R. H. and Pianka, E. R. (1966).On the optimaluse of a patchy environment.American Naturalist, 100: 603-609.
  75. Martin, E.C. (1979). The use of bees for crop pollination. In: The Hive and Honey bee. (ed.)Dadant and Sons, 579-614 pp.
  76. Mayer, D.F. and Lunden, J.D. (2001). Honey bee management and wild bees for pollination of hybrid onion seed. Acta Hortic.,61: 275-278.
  77. McGregor, S.E. (1976). Insect pollination of cultivated crop plants.Agriculture Handbook, United States Department of Agriculture, No. 496.
  78. Meléndez-Ramirez, V., Magaña-Rueda, S., Parra-Tabla, V., Ayala, R. and Navarro, J. (2002). Diversity of native bee visitors of cucurbit crops (Cucurbitaceae) in Yucatán, México.J Insect Conser.,6: 135-147.
  79. Meloyan, A.A. (1975). Nectar sugar production by winter vetch (Vicia Villosa) cultivars of different origins.Zapiski Lenin Gradskogo Selskokhozyais tvennago instituta, 271: 61-63.
  80. Mevetty, P.B.E., Pinnisch, R. and Scarth, R. (1989).The significance of floral characteristics in seed production of four summer rape cultivar.A-lines with pollination cytoplasm.Can. J. Pl. Sci., 69(3): 915-918.
  81. Mohr, N.A. and Jay, S.C. (1990).Nectar Production of selected cultivars of Brassicacompestris L. and Brassica napus L .J.agril. Res., 29(2): 95-100.
  82. Mommers, J. (1977). The concentration and composition of nectar in relation to honeybee visits to fruits trees Apidologie,8: 357-361.
  83. Morris, H. (1968). Pollination of cucumbers.Glean. Bee Cult.,1: 14-16.
  84. Munawar, M.S. and Muzaffar, N.(1999). Role of honeybee (Apis mellifera L.) pollination on onion (Allium cepa) seed production.In: 36th limondia Congress September, 12-18, Vancouver-Canada, 276pp.
  85. Nemirovich-Danchenko, E.N. (1964). Concerning the nectar yield and floral biology of cucumbers.Izv. Tomsk. Otd.Vses. Bot. Obshch.,5:127-132.
  86. Nogueira, C.R.H. and Calmona, R.C. (1993). Insect pollination of cucumber (Cucumis sativus var. Aodai Melhorada).Naturalia Sao Paulo., 18: 77-82.
  87. Nuenz, J.A. (1977). Nectar flow by melliferous flora and gathering flow by Apis mellifera ligustica. Journal of Insect Physiology, 23: 265–276.
  88. Nye, W.P. and Anderson, J.L. (1974).Insect pollinators frequenting strawberry blossoms and the effect of honey bee on yield and fruit quality.J. Am. Soc. Hortic. Sci., 99: 40–44.
  89. Oh, H.W. and Woo, K.S. (1990). A study of foraging and pollen collecting activity of honey bee (Apis mellifera L.) in the spring.Korear J. Apic, 5(1): 1-22.
  90. Osgood, C.E. (1974). Relocation of nesting populations of Megichile rotundata as an important pollinator of alfalfa.J. Apic. Res., 13: 63–73.
  91. Parker, F.D. (1982).Efficiency of bees pollinating onion flowers.J.Kansas Ento. Soc., 55: 171-176.
  92. Parker, F.D. and Hatley, C.L. (1978). Onion pollination viability of onion pollen and pollen diversity on insects body hairs. Proc.IV Int. Symp. Poll. M D Agri. Exp. Stn. Spec. Publ. Misc., 1: 201-206.
  93. Pereboom, J.J.M. and Biesmeijer, J.C. (2003). Thermal constraints for stingless bee foragers: the importance of body size and coloration. Oecologia, 137 (1): 42–50.
  94. Prasad, R., Chand, H. and Singh, R. (2000).Effect of boney bee, Apis mellifera pollination on the yield and germination of onion, Allium cepa seeds.Shashpa, 7: 1, 53-55.
  95. Priti and Sihag, R.C. (1997).Diversity, visitation frequency, foraging behaviour and pollinating efficiency of insect pollinators visiting cauliflower (Brassica aleracea) blossoms.Indian Bee J., 59(4): 230-237.
  96. Pyke, G.H., Pultiam, H.R. and Charnov, E.L. (1977). Optimal foraging: Selective review of theory and tests. Qtly. Rev. Biol., 52: 137-154.
  97. Rao, G.M. and Suryanarayana, M.C. (1988).Studies on pollination of watermelon Citrullus lanatus (Thunb) Manst.Indian Bee J., 50: 5-8.
  98. Rao, G.M. and Suryanarayana, M.C. (1989).Effect of honeybee pollination on seed yield in onion (Allium cepa L.).Indian Bee J., 51(1): 9-11.
  99. Richard W., Rusta, R.W., Vaissièreb, B.E. and Westrichc, P. (2003).Pollinator biodiversity and floral resource use in Ecballium elaterium (Cucurbitaceae), a Mediterranean endemic.Apidologie, 34: 29-42.
  100. Roa, G.M. and Lazer, M. (1980).Studies on beee behavoiur and pollination on Allium species with observation on insect as pollinators.J. Apic. Res., 24: 62-66.
  101. Ruszkowaski, A. and Bilinski, M. (1984). Proba wykorzystania trzmiek (Bombus Later) I miesiarki lucernowki (Magachile rotundata F.) dozaphlania materialu hodowlanego ogorkow. Pszczelnicze Zeszyty Naukowe, 28: 175-184.
  102. Saeed, A., Muhammad, T., Karim, A., Jabbar, A. and Ahmad, G. (2008). Effect of pollinators and insecticides on seed setting of onion (Allium cepa L.)Ann. Appl. Boi.,130(3): 497-506.
  103. Sajjad, A., Saeed, S. and Masood, A. (2008).Pollinator community of onion (Allium cepa L.) and its role in crop reproductive success.Pakistan J. Zoo.,40: 451-456.
  104. Sakharov, M.K. (1956). Bees and onion seed production. In: Pollination of Agriculture Plants (eds. Krishchunas, I. V. and Gubin, A. F.). Moskva, Goa Izdvo Selkhoz Lit-ry, 172-173 pp.
  105. Sanduleac, E. (1961).The pollination of vegetable seed plants.Apiculture,14: 25-26.
  106. Sarviva, J.A.P.G. (1985). Bioclimatic factors affecting flights of honey bee. Apis mellifera L. (Hymenoptera: Apidae) Ph.D. Thesis, Colorado State University Fort Collins. USA, xi+148pp.
  107. Schmid-Hempel, P. (1984). The importance of handling time for flight directionality in bees.Ecol. Sociobiol. 15: 303- 309.
  108. Schoener, T.W. (1971). Theory of feeding strategies.Ann. Rev. Ecol. Syst. 2: 369-404.
  109. Seeley, T.D., Camazine, S. and Sneyd, J.(1991). Collective decision making in honey bees: How colonies choose among nectar sources. Behav. Ecol. Sociobial,28: 277-290.
  110. Seyedebrahimi, S., Ebadi, R., Mobli, M. and Hatami, B. (2004). Honey bee (Apis mellifera L.) foraging on some onion cultivars and its relation with their nectar quantity and quality. J. Sci Tech. Agri. Natural Resources, 8: 1, 235-246.
  111. Shafqat, A.S. and Masood, S.A. (2008).Pollinator community of onion (Allium cepa L.) and its role in crop reproductive success.Pakistan J. Zool.,40: 451-456.
  112. Sharma, S.K. and Singh, J.R. (1999).Pollination efficiency of Apis dorsata F. and A. florea F. on carrot (Daucus carota L.).Indian Bee J., 61(1): 1-4.
  113. Sharma, S.K. and Singh, J.R. (2000).Efficiency of two Apis spp. pollinating sunflower (Helianthus annus L.).Ann. Ent.,18(1): 15-17.
  114. Sharma, S.K., Singh, J.R. and Kaushik, H.D. (2001).Efficiency of two wild honey bees (Apis spp.) as pollinators of onion (Allium cepa L.).Haryana J. hortic. Sci., 30(1&2): 134-135.
  115. Sharma, S.K., Singh, J.R. and Ombir.(2000). Comparative efficiency of three Apis spp. on Brassica campestris var. ‘sarson’ B.S.H.1. Crop Res., 19(1): 125-127.
  116. Shelar, D.G. and Suryanarayana, M.C. (1981).Preliminary studies on pollination of coriandar (Coriandrum sativum L.).Indian Bee. J., 43(4): 110-111.
  117. Shuel, R.W. (1955). Nectar secretion.Am. Bee J., 95: 229-233.
  118. Sihag, R.C. (1984). Influence of environmental factors on the pollination activity of bees. Env. Ecol., 2:149-152.
  119. Sihag, R.C. (1985). Floral biology, mellitophily and pollination ecology of onion crops. In: Recent advances in pollen research (ed. Varghese, T.M.). Allied Publishers, New Delhi.241-268 pp.
  120. Sihag, R.C. (1986). Insect pollination increases seed production in cruciferous and umbelliferous crops. J. apic. Res., 25(2): 121-126.
  121. Sihag, R.C. and Khatkar, S. (1999). Foraging pattern of three honeybee species on eight cultivars of oilseed crops. I. Diurnal foraging. Int. J .Trop. Agric., 17(1-4).
  122. Silva, E.M. and Dean, B.B. (2000). Effect of nectar composition and nectar concentration on honeybee (Hymenoptera: Apidae) visitations to hybrid onion flowers.J. econ.Ent, 93(4): 1216-1221.
  123. Singh, B. and Hameed, S.F. (1995).Physical factors and foraging activity of insects visiting rye bloosoms. In: Pollination Biology: Environment Factors and pollination (ed. Sihag, R.C.), Rajendra Scientific Publishers, Hisar. 111-116pp.
  124. Singh, J.P. and Dharamwal, S.C. (1970). The role of honey bee in seed setting of onion at Pant Nagar, Dist. Nainital, Uttar Pradesh, India. Indian Bee J.,32(1/2): 23-26.
  125. Skrebtsova, N.D. (1957). Amount of pollen on the body of bees. Pchetorodstvo, 34(4): 39-42.
  126. Stanghellini, M.S., Ambrose, J.T. and Schultheis, J.R. (1997). The effects of honeybee and bumble bee pollination on fruit set and abortion of cucumber and watermelon. Am. Bee J.,137: 386-391.
  127. Stephen, W.A. (1970). Honey bees for cucumber pollination. Am. Bee J. 110: 132-133.
  128. Szabo, T.I. and Smith, M.V. (1972).The influence of light intensity and temperature on the activity of alfalfa leaf cutter bee.Megachile rotundata under field conditions.J. Apic. Res., 11: 157–165.
  129. Van der Meer, Q.P. and Van Bennekom, J.L. (1968). Research in pollen distribution in onion seed fields.Euphytica, 7: 216- 219.
  130. Vansell, G.H. (1934). Relation between the nectar sugar concentration in fruit blossoms and the visits of honey bee.
  131. J. econ.Ent.,27: 943-945.
  132. Waddington, K.D. (1982). Information used in foraging. In: The Biology of Social Insects. (eds. Breed, M.D., Michner, C.D and Evans, H.E.). Boulder Westview Press.24-27 pp.
  133. Waller, C.D. (1970). Attracting honey bees to alfafa with citral, geraniol and anise.J. Apic. Res.,9, 9-12.
  134. Walsh, R.S. (1965). Pollination of onion plants by honey bee. New Zeal. Beekeeper, 27(2):18- 20.
  135. Wilkaniec, Z., Warakomska, Z. and Giejdasz, K. (2002). Rooeliny ywicielskie pszczoy samotniczej Osmia rufa L. (Apoidea, Megachilidae) okreoelone na podstawie analizy py³ku z komór lêgowych. Zesz.Nauk. PTPN, 93: 199-205.
  136. Wolf, S., Lensky, Y. and Paldi, N. (1999).Genetic variability in flower attractivness of honey bee (Apis mellifera L.) within the genus Citrullus. Hort. Sci.,34(5): 860-863.
  137. Woyke, H.W. (1981). Some aspects of the role of the honeybee in onion seed production in Poland. Acta Hortic. J.111: 91-98
  138. Wykes, G.R. (1952). The preferences of honey bee for solutions of various sugar which occur in nectar. J. exp. Biol., 29: 511-519.
  139. Wykes, G.R. (1953). The sugar contents of nectars. Biochem. J., 53: 294-296.
  140. Yucel, B. and Duman, I. (2005). Effect of foraging activity of honey bee (Apis mellifera L.) on onion (Allium cepa) seed production and quality.Pakistan J. Biol. Sci., 8(1): 123-126.

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