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white flowers
About some flowers, my books said "red (or purple, or blue), sometimes
white". BRBR Are they albinos ? BRBR Yes. In some plants, I know it is true in orchids, there are two or three steps in the conversion of sugar to anthocyanin, involving certain enzymes. If there is a mutation which disables any one of the enzymes in the pathway, the result is white flowers. Do the seeds give another white ? BRBR Generally yes. The gene which produces the defective or missing enzyme is usually recessive. If you self pollinate a plant with wnite flowers, you can expect all white progeny. If you cross two white flowers, you may or may not get all white offspring, depending on whether the genes match up. I think they appear at the end of the flowering period ? BRBR Not sure what you mean. I don't know of any plants which produce colored flowers at the beginning of their flowering season and white flowers later on. Iris, Central NY, Zone 5a, Sunset Zone 40 "If we see light at the end of the tunnel, It's the light of the oncoming train." Robert Lowell (1917-1977) |
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