Dandelion seeds are dispersed by .

Solve the crossword puzzle with the help of given clues.

ACROSS

$1.$ Vegetative propagation by modified underground stem. $\left(6\right)$

$2.$ Fusion of an egg in the ovule with the male gamete. $\left(13\right)$

$3.$ Vegetative propagation by modified roots. $\left(7\right)$

$4.$ Multiply rapidly by fragmentation. $\left(5\right)$

$5.$ Concentrated solution of sugars produced in flowers. $\left(6\right)$

DOWN 
$6.$ Reproduces by budding. $\left(5\right)$

$7.$ Grows fast, moves into the soil forming the root. $\left(7\right)$

$8.$ Transfer of pollen grains from the anther of the stamen to the stigma of the pistil. $\left(11\right)$

$9.$ The technique used in producing different modified varieties of fruits and flowers. $\left(8\right)$

$10.$ Its fruit have hooks and spines on their body. $\left(8\right)$