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First, u must make sure that both the flowers you picked up are at the stage of receptive, meaning the ovule can accept the pollen for fertilization.

Secondly, u decide which of the two to be the male and female source of the germplasm. Roses are hermaphrodite plant, meaning both sexes, male and female organs are present on the same flower.

Having decided that, u remove the pollen of the flower that u decided to be the female. This is done before the flower anthesis, i.e. before the gyneseum or the ovule matured. Cover the flower with paper or cloth.

As for the other flower which u had decided to be the male flower, leave it as it is.

When the pollen is matured, pick them up and inoculate them on the stigma of the female flower.

If the base of the female flower is swelling, it means that your cross is successful. It it drops, your cross is a failure.

In plant breeding, this cross is called controlled crossing.

Otherwise, what u do is, wait until the two flower about to open, usually very early in the morning, just rub the two flowers together and hopefully there will be some pollen crossing into the other flower. However, u may expect some 'selfing' or self pollination to occurred as well. Both flowers will develop into fruits with some seeds inside them.

What u do next is, let the two fruits develop, harvest them when they are ripe, and grow the seeds.

When the seedling matured, and baring flowers, u can see a lot of variation among the progenies, ie through selfing and cross pollination.

Good luck.

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12y ago

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