Minufiya J. Agric. Res. Vol. 37 No. 1: 93 105 (2012) GOSSYPIUM BARBADENSE ! "# $ #% & ’ () *! + ,+ (-( .! *! / 0)0 $ 0 1)0 ’)2)3 &)4 13 .! 0//)0 //(/13 5 1)0(( %//(/13 $ 0 1)0’)2)3 &)4 13 0)4+ $0 .6 .7**! # Two field experiments were conducted in special farm at Diarb Negm, Sharkia governorate, Egypt, to study the effect of honeybee (Apis mellifera, L.) as a pollinator and biofertilizers inoculation on abscission, productivity, chemical composition of seeds and fiber technological characters of Egyptian cotton (Gossypium barbadense, L.), Giza 86 cultivar as well as bee products (broods, honey and pollen) during 2010 and 2011 seasons. The results indicated that honeybee pollination significantly increased the values of number bolls/plant, yield and its components (number of open bolls/plant, seed index, earliness %, lint % and seed cotton yield per plant and fed), but decreased the total abscission percentage compared to the unpollinated plants. Meanwhile, the height of first fruiting node/plant, chemical composition of seeds and technological characters of fiber were not significantly affected in the two seasons. Inoculation of the tested biofertilizers significantly increased the values of number of total bolls/plant, yield and its components, chemical composition of seeds and technological characters of fiber (except fiber fineness), but decreased total abscission percentage in favour of dual inoculation with Azotobacter and Bacillus compared to the uninoculated plants in the two growing seasons. The interaction between the honeybee and biofertilizers treatments were found to be significant for number of total bolls/plant, total abscission/plant, number of open bolls /plant, earliness % and seed cotton yield per plant and fed in the two seasons. Honeybee pollinators combined with dual inoculation (Azotobacter and Bacillus) being the most effective interaction treatment for decrease the abscission and increase the yield parameters compared to unpollinated and uninoculated plants in the two seasons. The total amount of extracted honey, mean areas of pollen and broods increased in hives put in cotton field compared with those away from cotton. Key words: biofertilizers, honeybee, productivity, technological parameters, cotton. $& // )8 / /(3 /8 )/ 2), 0/8 /2 /(+ , (8/ 80/+ ,8 8/0 2/ ( /)8 2 8/3, + /)( 9)1 2)2 ) /(+ 8 /1 +),( /)(8 et al .776! // (38 93 /( ) 0//)0 0)4)3 )8 /(+8 /1 0/0)( 0/8 + )8 1++ 8 ) 1/(+ 13) 0// )8 2+ /+ /(+ ,08 ) )8 (/1 2), 0// 98 ) 8/2 + 8/1 8 ) / 3 38 ) 8 8/ 4(,( /8 /2 0/ 8 :/+ / / 0/)8 #8)+8 ,)1 / ( 2), 0/ 0// (8/ /4)+8 +),( /)( / .;< // 8+ ( )8 /+0 ))1 /0 /)( 8 , /4+ 2/ 8+8 + 0 , 0/) / ;*< /) ) *==>! // 8+ ( )8 8+ ) 2//+ /+08 2/ )( 2+ + / )8 )1 /) + 1)0 4(8 / ) )8 0883 / )08 0// 0()4)/ + /+0)4)3 /(())/ )8 82 /2 /(( 0/))1 ( 1 /2 (