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canopy management in fruit crops - Department of Agriculture & Co ...

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Introduction<br />

Canopy <strong>management</strong> is one <strong>of</strong> the most important production factors<br />

confront<strong>in</strong>g the burgeon<strong>in</strong>g <strong>fruit</strong> <strong>in</strong>dustry <strong>in</strong> India. Indeed, <strong>canopy</strong><br />

<strong>management</strong> is the manipulation <strong>of</strong> tree <strong>canopy</strong> to optimize its production<br />

potential with excellent quality <strong>fruit</strong>s. In many <strong>fruit</strong> <strong>crops</strong>, <strong>in</strong>crease <strong>in</strong><br />

production with enhanced <strong>fruit</strong> quality is obta<strong>in</strong>ed by manag<strong>in</strong>g canopies<br />

<strong>of</strong> short statured trees. Small trees capture and convert sunlight <strong>in</strong>to <strong>fruit</strong><br />

production <strong>in</strong> a better way than larger ones. Fruit production <strong>in</strong>volves the<br />

captur<strong>in</strong>g and conversion <strong>of</strong> sunlight <strong>in</strong>to production <strong>of</strong> <strong>fruit</strong> biomass (dry<br />

matter content). The ma<strong>in</strong> controll<strong>in</strong>g factors are amount <strong>of</strong> <strong>in</strong> com<strong>in</strong>g<br />

radiation, and percentage <strong>of</strong> radiation <strong>in</strong>tercepted by tree canopies.<br />

In general, the question always arises as to why the plants may not<br />

be left as such to be governed by the nature itself. The answer is that the<br />

nature’s purposes are not always the same as ours. Nature <strong>in</strong>tends that<br />

a plant should live merely for reproduc<strong>in</strong>g itself <strong>in</strong> as many numbers as<br />

possible. Nature does not care how many good sized, high quality <strong>fruit</strong>s are<br />

born by trees. For commercial <strong>fruit</strong> grow<strong>in</strong>g, the natural form and shape <strong>of</strong><br />

<strong>fruit</strong> trees have to be modified through the practice <strong>of</strong> prun<strong>in</strong>g to achieve<br />

the target <strong>of</strong> higher yield and better quality <strong>fruit</strong>s. The <strong>fruit</strong> growers desire<br />

to regulate the growth and development <strong>of</strong> their trees <strong>in</strong> a scientific manner.<br />

This is because it is not always wise to allow a plant to develop naturally,<br />

s<strong>in</strong>ce unwanted portions may develop at the expense <strong>of</strong> those which are<br />

essential from the cultivator's po<strong>in</strong>t <strong>of</strong> view. The removal <strong>of</strong> unwanted parts<br />

<strong>of</strong> plant is thus known as prun<strong>in</strong>g. The practice <strong>of</strong> prun<strong>in</strong>g, as and when<br />

performed <strong>in</strong> an appropriate manner, keeps the plant <strong>in</strong> such shape and<br />

condition as to yield <strong>fruit</strong>s <strong>of</strong> desired quality.<br />

Climate has significant bear<strong>in</strong>g on prun<strong>in</strong>g. The <strong>fruit</strong> <strong>crops</strong> grown <strong>in</strong><br />

different climatic zones — tropical, subtropical and temperate are required<br />

to be tra<strong>in</strong>ed and pruned accord<strong>in</strong>gly, depend<strong>in</strong>g on the type <strong>of</strong> plant and<br />

specific objectives <strong>of</strong> <strong>fruit</strong> growers. Canopy <strong>management</strong> depends on the<br />

nature and growth pattern <strong>of</strong> plant, number <strong>of</strong> plants / ha and prun<strong>in</strong>g<br />

techniques.<br />

Prun<strong>in</strong>g should be done when trees are young to establish their basic<br />

Canopy Management <strong>in</strong> Fruit Crops 1

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