A. The flower represented by Remembrance Day poppies is Papaver rhoeas. Papaver is the Latin name for poppy. The plants are 60-cm tall annuals with black-centred scarlet flowers. Common names ...

IN many crosses plant-breeders are confronted with one or more of the following problems : (1) the pollen grains may fail to germinate on a foreign stigma ; (2) if they germinate, the pollen tubes ...

Figure 1: Organization and expression of PrpS 1. Figure 3: PrpS determines S-specific pollen inhibition. Sequence identities were calculated for PrsS and PrpS, using pairwise comparisons of the ...

Usually the lowly Papaver rhoeas (the red poppy) doesn’t make the news as much as its narcotic cousin Papaver somniferum (opium poppy), but once a year — and especially this year, the centennial ...

Here’s how the poppy came to symbolize World War I. Gary Krupnick The seeds of common poppy (Papaver rhoeas) only germinate when the soil in which they live is disturbed. Intense fighting during ...

In the "Shirley" poppies (Papaver Rhoeas L.), the presence of a white margin of the petals is a dominant character and is probably due to an inhibitor limited in its effective action to the margins of ...