Pollination

This is about the relationship between flower structure and pollination efficiency. It also includes reproductive costs and success.

Pollen Volume and Chromosome Content of Daffodils; Possibilities for hybridizing

February 13, 2012
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Pollen Volume and Chromosome Content of Daffodils; Possibilities for hybridizing.pdf The text enclosed is no real detective story about daffodils and in any case a little more complicated. It is…

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Little bulbs of N. henriquesii

November 11, 2011
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Some scales with little bulbs of N. henriquesii. They were treated with Oryzalin for chromosome doubling and stored 12 weeks at 20 degrees C in a heat box. Theo

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NNNX Crosses 2

June 10, 2011
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The plants produce little pollen, big pollen, or both types. An  example for the last case  is shown in the picture. Theo  

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NNNX Crosses 1

June 10, 2011
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The pictures show  new seedlings of this spring from the following crosses: Symptom x Matador, Hillstar x Amadeus and Oregon Cedar x Emerald Sea. These crosses have 3 chromosome sets of standard daffodils…

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Seedlings 5

May 26, 2010
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Harold, John and All,   This year the first two seedlings of Regeneration x Emerald Sea flowered. The Emerald Sea from you, John, grows very well. This year I tried…

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Seedlings 4

May 25, 2010
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  The second picture is an older seedling of Honeybird x N. hedraeanthus (NHH). This year I found out, that it is fertile. It has unreduced pollen and gives with N. hedraeanthus…

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