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geniusboy [140]
3 years ago
6

সরিষা এবং কুমড়া গাছে স্বপরাগায়ন কেন হয়?পর পরাগায়ন কেন হয়না?

Biology
1 answer:
Deffense [45]3 years ago
5 0

Answer:

সরিষা এবং কুমড়া গাছে স্বপরাগায়ন কেন হয়?পর পরাগায়ন কেন হয়না? শিমুল এবং পেঁপে গাছে পর পরাগায়ন কেন হয়?স্বপরাগায়ন কেন হয়না?  

একই ফুলে বা একই গাছের ভিন্ন দুটি ফুলের মধ্যে যখন পরাগায়ন ঘটে তাকে স্বপরাগায়ন বলে। সরিষা, কুমড়া, ধুতুরা ইত্যাদি উদ্ভিদে স্বপরাগায়ন হয়।  

একই প্রজাতির দুটি ভিন্ন উদ্ভিদের ফুলের মধ্যে যখন পরাগায়ন  ঘটে তখন তাকে পরপরাগায়ন বলে। শিমুল, পেঁপে ইত্যাদি গাছের ফুলে পরপরাগায়ন হয়।  

Explanation:

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