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How Do Storage Grain Losses Occur? - Science

How do storage grain losses occur?

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There are various biotic and abiotic factors that act on stored grains and result in degradation, poor germinability, discolouration, etc. Biotic factors include insects or pests that cause direct damage by feeding on seeds. They also deteriorate and contaminate the grain, making it unfit for further consumption. Abiotic factors such as temperature, light, moisture, etc., also affect the seed. They decrease the germinating ability of the seeds and make them unfit for future use by farmers. Unpredictable occurrence of natural calamities such as droughts and floods also causes destruction of crops.

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NCERT Class 9 Science Textbook
Chapter 15 Improvement in Food Resources
Q 5 | Page 215
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