SELECT * FROM question_mgmt as q WHERE id=4320 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=8 AND subId=16 AND chapterId=195 and ex_no='12' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 9th science Improvement in Food Resources how do storage grain losses occur

Question:

How do storage grain losses occur?

Answer:

Both biotic and abiotic factors play an important role in the spoilage of the stored seeds. Biotic factors such as insects or pests that cause direct damage by feeding on seed. 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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