Merhaba,
Bu konuyla ilgili 2000 ylında ABD'de yazılmış bir
makale bulunmakta. Kısaca %2-3 tozlayıcı yeterli diyorlar.
Pollination of English Walnuts: Practices and Problems
Local experience with
walnut pollination
As has been noted, the need for
pollinizers may vary
depending on location.
In the southern
San Joaquin Valley,
‘Chandler’ losses due
to PFA were generally
greater than were
losses due to lack of
pollination. This generally
was not the case
in the northern San
Joaquin and Sacramento
Valleys, where
it was difficult to correlate
PFA with distance
from the pollinizer row, but
drop due to lack of pollination was
sometimes noted.
In general, recommendations for
pollinizers have been reduced in recent
years and are currently between 2 and
3% pollinizers depending on the factors
listed above.