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I successfully cross pollinated two different echinopsis (don't know exact Id) and got few seedpod as well.will echinopsis grown from these seeds will produce different color flower or same as there mother plant flower?

You'll get various combinations of genes from both parents. Since you don't know the exact genetic heritage of the parents, no telling what you might get.

The red one looks like some Lobivia hybrid so you can expect all variety of white- pink- red forms from those seeds. And every pot may contain several hundred or thousand seeds.