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Artificial Parthenogenesis
The eggs of some normally sexually reproducing animals can be induced by artificial means to develop parthenogenetically. The stimuli inducing artificial parthenogenesis are salts, weak acids, organic solvents, urea, sucrose and physical stimuli like temperature, electric shock ..
Artificial Vegetative Propagation or Cloning
Artificial Vegetative Propagation or Cloning - Vegetative propagation produces the next generation that is genetically identical to the parent. Such an organism that is genetically identical to the parent is called a clone. In case of plants with advantageous characteristics, th..
Artificial Vegetative Propagation or Cloning
Vegetative propagation produces the next generation that is genetically identical to the parent. Such an organism that is genetically identical to the parent is called a clone. In case of plants with advantageous characteristics, the characteristics can be preserved by producing clo..
Reproduction in Flowering Plants Summary
Summary - Reproduction occurs by vegetative propagation, asexual and sexual reproduction. Vegetative propagation through artificial method can be done by cuttings, layering and grafting. Pollination refers to the transference of pollen grains from the anther of a flower to the stigma of t..
a) Hyper sensitivity
A person who is overly reactive to an antigen is said to be hypersensitive or allergic . Substances that cause allergic reactions are called allergens . Common allergens include certain foods (milk, eggs), antibiotics such as penicillin, Cosmetics, chemicals in plants such as poison ..
Hybridisation
Hybridisation is the technique of introducing characters of two desirable plants into a single offspring (hybrid) by means of artificial pollination. This involves crossing of genetically dissimilar plants..
Micropropagation
It refers to artificial propagation of plants vegetatively through the culture of cell or tissue. It is most useful, when normal propagation takes long time or the success in fertilization is very poor as seen in many valuable plants useful in agriculture, horticulture..
Activity
Visit an agricultural institute where hybridization is done and study how Plants are grown in artificial conditions. Artificial cross-pollination is done. Tissue culture is done..
Activity
Visit an agricultural institute where hybridization is done and study how: Plants are grown in artificial conditions Artificial cross-pollination is done Tissue culture is don..
Others
1. Colchicum autumnale yields an alkaloid colchicine, used for inducing polyploidy in plants artificially. 2. Urginea indica (White squill) - extract from bulbs used in making rat poison. fig. 27.16 Common Examples of Family Liliac..
1. Colchicum autumnale yields an alkaloid colchicine, used for inducing polyploidy in plants artificially. 2. Urginea indica (White squill) - extract from bulbs used in making rat poison. fig. 27.16 Common Examples of Family Liliac.. Result
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