ICSE BoardEnglish MediumSTD 8BIOLOGYReproduction in Plants5 Marks
Question
Write a short note on Micro propagation.
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Answer
Micro propagation : This is the propagation of plants involving cell and tissue culture. If vegetative propagation is not possible in a crop, then buds, shoot apex or any other part of the plant can be used as explant for micropropagation.
$1.$ The explants are treated with sterilisation chemicals to prevent microbial growth, and then cultured in a particular nutrient medium.
Cells grow and divide to form a cell mass called callus Some growth regulators $($Plant hormones$)$ are added.
$2.$ The callus differentiates into plant parts looking like plant $($plantlet$)$. After $4-6$ weeks the plantlets transferred to the soil
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