TERMS DEFINITIONS Autonomic movement. The movements induced by some internal causes are called autonomic movement. It example is ciliary movement. Paratonic movement The movement induced by external stimuli is called…
The non-directional movements of the plant in response to external stimuli are called nastic movement. The variation in the intensity of some external- factor acts as stimulus. The direction of…
The tropic movement in response to gravity of earth is called geotropism or gravitropism. The tip of the stem grows away from the gravity (negative geotropism) and the root tips…
The tropic movement of the part of plant in response to stimulus of light is called phototropism. Almost all part of the plant shows phototropism. I. Stem: A potted plant…
The movements in curvature of whole organ towards or away form the stimuli such as light, gravity and touch are called tropic movement. It has different types. It may be…
Movements are of universal occurrence in plants. Most of the plants are fixed. They can bend only their parts. It is called curvature movement. The locomotory movement of the animal…
Water and Oxygen Seed need to imbibe 20 10% water. Therefore, dry seed cannot be vernalized. Similarly oxygen is also necessary for vernalization. Oxygen is used during respiration. A germinating…
Following views tried to explain the mechanism of vernalization: Concept of Gregory Gregory and coworker were working on cereals. They believed that vernalization process consists of several partial reactions. Cells…
The low temperature treatment given to the seed or plant for stimulating flowering in them is called vernalization. Some seeds required low temperature treatment to break dormancy. Similarly shoot bud…
TERMS DEFINITIONS Seed dormany The physiological inability of a seed to germinate even under favourable condition called seed dormancy. Scarification The seed coat is punctured or mechanically ruptured by rubbing.…
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