Why do self pollinated crops not show the ill effects of inbreeding depression? Share with your friends Share 1 Deepak answered this because it increases variation and variation causes evolution by continuously improving generations if plant -1 View Full Answer Deepak answered this are u still confused????? -2 Riya Gupta answered this Ya , Becoz self pollination also develop pureline as in inbreeding. 1 Riya Gupta answered this plz someone tell me the answer of this question. 1 Amit Sharma answered this As ill effects of inbreeding depression shown, when recessive alleles combine and homozygosity resulted in reduced vigour of organism. 0