What is self incompatibility why does self pollination not lead to seed formation in self compatibility?
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self compatibility when pollen grain cannot perform pollination and cannot lead to seed formation because when pollen grain reach to stigma then synergids degenerate and release chemical if chemical acepptance is not there of same species .
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ꜱᴇʟꜰ-ɪɴᴄᴏᴍᴘᴀᴛɪʙɪʟɪᴛʏ ʀᴇꜰᴇʀꜱ ᴛᴏ ᴀ ɢᴇɴᴇᴛɪᴄᴀʟʟʏ ᴄᴏɴᴛʀᴏʟʟᴇᴅ ᴍᴇᴄʜᴀɴɪꜱᴍ ᴛʜᴀᴛ ᴘʀᴇᴠᴇɴᴛꜱ ꜱᴇʟꜰ-ᴘᴏʟʟɪɴᴀᴛɪᴏɴ ᴀɴᴅ ᴘʀᴏᴍᴏᴛᴇ ᴄʀᴏꜱꜱ-ᴘᴏʟʟɪɴᴀᴛɪᴏɴ ɪɴ ꜰʟᴏᴡᴇʀꜱ.ꜱᴇʟꜰ-ᴘᴏʟʟɪɴᴀᴛɪᴏɴ ᴄᴀɴɴᴏᴛ ʟᴇᴀᴅ ᴛᴏ ᴛʜᴇ ꜰᴏʀᴍᴀᴛɪᴏɴ ᴏꜰ ꜱᴇᴇᴅꜱ ɪɴ ᴀ ꜱᴇʟꜰ-ɪɴᴄᴏᴍᴘᴀᴛɪʙʟᴇ ꜱᴘᴇᴄɪᴇꜱ. ᴛʜɪꜱ ʜᴀᴘᴘᴇɴꜱ ʙᴇᴄᴀᴜꜱᴇ ᴛʜᴇ ᴘᴏʟʟᴇɴꜱ ᴀʀᴇ ᴜɴᴀʙʟᴇ ᴛᴏ ꜰᴇʀᴛɪʟɪᴢᴇ ᴛʜᴇ ᴏᴠᴜʟᴇꜱ ᴛʜᴀᴛ ᴡᴏᴜʟᴅ ᴅᴇᴠᴇʟᴏᴘ ɪɴᴛᴏ ᴀɴ ᴇᴍʙʀʏᴏ ᴀɴᴅ ʜᴇɴᴄᴇ ꜰᴏʀᴍ ꜱᴇᴇᴅꜱ.
:)
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