Correlation | Apical Dominance | Inhibitory Effect | Compensatory Effect | Class 12 In Urdu/Hindi

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In This Video Lecture You Will Learn Basic Concept Of Correlation

The development of a plant is usually correlated with its growth and diferent organs
have very little apical dominance. As far as practical application of apical dominance
growing at diferent rates in diferent directions and the development of diferent parts
So active shoot apex controls the development of lateral buds. Thus, the auxin of the
compensatory efect.
takes place. Such reciprocal relationship is known as correlation.
One of the most important correlative efect in plants is apical dominance. In many
is concerned, it plays an important role in tap root development, and the inhibition of
also play important role in apical dominance and in many cases if cytokinins are
experiment, when apical bud was removed, the growth in the lower buds was inhibited.
case, the sprouting of eyes is prevented and storing period is increased from one to
experiments and showed that apical dominance was caused by auxin difusing from
Research has also indicated that not only auxin causes apical dominance, cytokinins
known as apical dominance (Fig 19.4). Later Thimann and Skoog in 1934 performed
sprouting of lateral buds (eyes) in potato tuber by applying synthetic auxin. In the later
terminal bud is responsible for inhibiting the growth of lateral buds by a phenomenon
applied directly on the inhibited bud, it allows lateral buds to be released from apical
dominance. It is also seen that those plants that have dense growth of lateral branches,
plants, only apical bud grows while growth is suppressed in lower axillary buds. In an
The removal of apex releases the lateral buds from apical dominance. It is called
the apical bud which inhibited the growth of lateral shoots is called inhibitory efect.
three years


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