01444naa a2200253 a 450000100080000000500110000800800410001910000150006024501110007526000090018652007290019565000110092465300300093565300160096565300170098165300090099865300110100765300330101865300240105165300250107570000140110070000230111477300530113716484612023-04-17       1995    bl uuuu     u00u1 u    #d1 aBUSTAN, A.  aInteractions between developing citrus fruits and their supportive vascular system.h[electronic resource]  c1995  aThe developing fruit is a strog sink,which demands large amounts of assimilates. A correlation between grapefruit (citrus paradisi Macf.,varMarsh seedless)fruit size and its pedicel cross sectional area(CSA)canbe demonstrated,suggesting a close interraction between them.The presence of fruits seems to determine the developmental pattern of the vascular tissues withich the fruits are borne.The pedicel normally terminates its diametric growh prior to the linear phase of fruit growth.Fruit thinning(90%)and trunk girdling, performed in order to minimize carbohydrate limitations, result in dramatic increases in fruit growt rate and pedicel CSA. Partial girdling of the pedicel causes a transient decrease in fruit growth.  aCitrus  aCarbohydrate availability  aCompetition  aFruit growth  aSink  aSource  aSpecific mass transport(SMT)  aTranspot limitation  aVascular development1 aERNER, Y.1 aGOLDSCHMIDT, E. E.  tAnnals of Botany Companygn.76, p.657-666, 1995.