T thấy bài nầy hay hay , hy vọng nó giúp ích phần nào cho mấy chị thích trồng Passion Fruit







Question:
Have you any tips on hand-pollinating passionfruit? I have had my vine
for a few years and the other one for almost two. There are plenty of
flowers but never any fruit. Can you help me with some tips thanks.





ANSWER: Hi Deow! I don't know what kind of passion vines
(Passiflora) you have, if they are Passiflora edulis Sims (purple
passion fruit); P. edulis f. flavicarpa Deg. (yellow passion fruit); or
P. quadrangularis L. (giant granadilla).

Without knowing, here are some essentials.



Pollination is vital for fruit production on passion vines, as you well
know. Flowers of the purple passion vine normally set fruit when
self-pollinated, but many yellow passion vines will not set fruit unless
their flowers are dusted with pollen from a different vine that is
genetically compatible.

Therefore, if you have 2 plants grown
from cuttings taken from the same vine, they cannot pollinate each
other. And, some vines from a group of seedlings can cross-pollinate,
and others cannot. Unfortunately, this can only be learned by trial and
error as the plants develop.



The giant granadilla also needs pollination to ensure fruit set. It
requires mild temperatures for normal fruiting, and may bloom but set no
fruit (or misshapen fruit), during the hottest part of the summer.

To
hand-pollinate purple passionfruit, simply dust each pistil with pollen
from stamens of another flower. You can do this by using a paint brush
and moving from one flower to another, or you can break off the stamens
and lightly dust the pisitls.

To hand-pollinate yellow
passionfruit dust the flowers with pollen from a flower of a genetically
different, but compatible vine.

To hand-pollinate Giant Granadilla, you need to hand-pollinate in the late morning, within 4 to 6 hours of the flower's opening.

Let me know how it goes, I would like to know if it worked out for you!