व्हाट आर द एडवांटेजेस एंड डिसएडवांटेजेस ऑफ क्रॉस एंड सेल्फ पोलिनेशन व्हिच ऑफ दिस इज बेटर एंड व्हाय
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It is not always certain as a pollinating agent is always required, and it may or may not be available at the suitable time. Pollen grains have to be produced in abundance to ensure chances of pollination. This results in lot of wastage of pollen.
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