In this article we will discuss about the size of pollen and spore walls. Size: There exist much variations in sizes of pollen and spores. The size may be 5 µ × 2.4 µ as observed in pollen of forget-me-not (Myosotis) or as high as 200 µ or more as is noted in certain genera […]
Size of Pollen and Spore Walls | Plants
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Structure of Cell Wall (With Diagram) | Plants
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In this article we will discuss about the structure of a cell wall in plants. This will also help you to draw the structure and diagram of cell wall in plants. Gross Structure of Cell Wall: A plant cell may consist of either primary wall only or the cell may contain both primary and secondary […]
Polarity of a Pollen Grain | Plants
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Polarity is defined as the condition of having distinct poles in a pollen grain. Jackson in 1928 assumed that a pollen grain points to the poles like Silphium. Silphium laciniatum, also known as compass plant, has leaves that ‘turn their edges north and south and avoid the mid-day radiation’ —Willis. Pollen mother cell after meiosis […]
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