Examination Plant Ovules Science Project Idea
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Written by Dee
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Monday, 09 July 2007 |
Science project idea- Do plant ovules always develop into seeds?
Examination of Plant Ovules- Science Project Idea
Do plant ovules always develop into seeds?Apparently, ovules do not necessarily develop into seeds.It will be found by an examination of a number of pea or bean pods that occasionally an ovule has not developed into a seed.An account of some experiments which have been performed many times will help us to understand why ovules do not always develop into seeds.Stamens were carefully removed from a flower before any pollen had escaped from the anthers.The flower was then covered with a fine netting or a paper bag.None of the ovules developed into seeds.
This would indicate that the pollen is necessary for the production of the seeds.This conclusion may be confirmed as follows: A flower was treated as the one described above; but in this case some pollen from another flower of the same kind was placed upon the stigmas of the flower from which the stamens had been removed.The ovules all developed into seeds.What conclusion will you draw from this result?
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Last Updated ( Sunday, 22 July 2007 )
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