The direct method of reproduction in which the organism doesn’t need any companion and can reproduce through spore or from any part of the both to keep the existence of the species is called asexual reproduction.
Asexual reproduction is of two types:
(1) Normal asexual reproduction.
(2) Artificial asexual reproduction.
Normal asexual reproduction:
(i) Binary fission:- Bacteria, Yeast, Protococcus etc. unicellular organisms undergo binary fission producing two new individuals from each. In this process, the nucleus and the cytoplasm divide more or less equally into two parts following amitosis division
(ii) Multiple fission:- In the adverse condition, some nuclei of plant cells divide repeatedly producing numerous daughter nuclei. Each nucleus being covered with cytoplasm forms an asexual reproductive cell or spore. The hard coat helps the spore to stirs e to the unfavorable condition to form daughter organisms alter being released from the mother plants. Example- Algae, Fungi etc.
Artificial vegetative reproductions:
Cutting: Branch cutting- It can be done by keeping in the soil, water or sand. Layering or formation of roots to adjacent organs. Grafting; Budding or by grafting.