Hello Theo A most interesting survey of pollen fertility in narcissus hybrids .I like to make two remarks. 1. From several wild narcissi tetraploids are available (Zonneveld (2008) Pl syst Evol 275:109-132) . It would be very worthwhile to…
Author: Ben Zonneveld, the Netherlands
calcicola x cantabricus
Hi Brian I suppose that the result of the cross N. calcicola with a nuclear DNA content of 26.6 pg and cantabricus with 14.5 pg will be sterile. Even when using the tetraploid cantabricus with 29 pg as this would…
kokopelli
It is a bit late but I can add some new info to Kokopelli I visited Hein Meeuwissen and did take some leaves with me to check the nuclear DNA content. Accprsing to daffseek is Kokopelli the result of…
pics of lback spots
THanks for the black spot pictures. I did not realize many had them ( what percentage roughly from the large daffodils?) One can now wonder what character is connected with this black spot on the chromosome that has been selected…
black spotted anthers.
I did not realize your season is nearly over. Here in holland were are halfway. Anyway I should have realized it earlier but I looked at the latest round of pictures from the shows and found two with black…
black spot on anthers
Dear Daffodil lovers . Let see what power the internet has. I am looking for the following:Could you check of you have any trumpet daffodil with a black spot at the tip of the anthers like they are present in…