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Germinating alder seeds
I am trying to breed a strain of alder with bigger seeds. This autumn
I went round alders around Newcastle and in stands planted from nursery stock rather than in self-seeded stands I found some SIGNIFICANTLY bigger seeds. Now I am trying to germinate them, but I am having problems. After I found the seeds I kept them for a few weeks in the bottom of the kitchen fridge. I took them out, soaked them for a day in water for a day and "planted" them out on wetted towelling in a B&Q mains heated propagator, the temperature inside is mid 20s°C, which seems reasonable. After 10 days, about a quarter of the "normal" sized seeds have germinated and have grown about a centimetre. But none of the much bigger seeds, the ones I really want, have grown yet. Why not? And what can be done about it? Do I simply need to wait longer? Should I abrade them? Yesterday I took "big" seeds from the fridge and rubbed them between sandpaper and as before soaked them in water, (they floated, is this a sign of whether or not they have taken in water?), I will "plant them out" tonight, is this likely to work? Can you think of anything else? Or, worst of all does their being big simply mean that they are deformed and dead? Michael Bell -- |
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