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Write a detailed note on technical …

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Write a detailed note on technical description of flower

Posted by Yug Patel 4 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Yogita Ingle 4 years, 1 month ago

The plant is described beginning with its habit, vegetative characters such as roots, stem and leaves and then floral characters inflorescence and flower parts.
After describing various parts of plant, a floral diagram and a floral formula are presented, which is represented by some symbols.
In the floral formula, Br stands for bracteate K stands for calyx , C for corolla, P for perianth, A for androecium and G for Gynoecium, G for superior ovary and G for inferior ovary, for male, for female , ⊕ for actinomorphic and for zygomorphic nature of flower.
Fusion is indicated by enclosing the figure within bracket and adhesion by a line drawn above the symbols of the floral parts.
A floral diagram provides information about the number of parts of a flower, their arrangement and the relation they have with one another.
The position of the mother axis with respect to the flower is represented by a dot on the top of the floral diagram.
Calyx, corolla, androecium and gynoecium are drawn in successive whorls, calyx being the outermost and the gynoecium being in the centre.
Floral formula also shows cohesion and adhesion within parts of whorls and in between whorls.

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