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THE POLLINATION BIOLOGY OF ARISTOLOCHIA-BRACTEOLATA LAMK
(ARISTOLOCHIACEAE)
RAZZAK MA; ALI T; ALI SI
Abstract: Aristolochia bracteolata Lamk. is partially Protogynous. The flower
exibits fly-trapping mechanism. Only one pollinator, belonging to the
genus Forcipomya (Diptera; Ceratopogonidae) is involved. The pollen
germination takes place within the dehisced anthers and on perianth
parts i.e., within the- trap and the prison, producing the pollen tubes,
which ultimately reach the stigma and bring about fertilization.
Breeding system study revealed that Aristolochia is self-compatible.
Significant difference between treatments (bagged and open - pollinated
flowers) in terms of fruit set, fruit and seed weight was observed. In
all the 3 populations studied, difference in seed set and seed weight
was significant while non-significant in fruit set and fruit weight.
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