Question

The development of sporophyte from the moss gametophyte without sexual fusion is called

Answer 1

The development of sporophyte from moss gametophyte without sexual fusion is called "apogamy".
In Mosses(Bryophytes),the gametophyte can give rise to cluster of haploid sporophytes without the functioning of gametes and it can also be induced chemically.The haploid spore then germinages to a protonema,continuing to the formation of gametophore.
It is the asexual development of sporophyte from a cell or cell of a gametophyte other than egg.

Answer 2

The development of sporophyte from moss gametophyte without sexual fusion is called APOGAMY. Apogamy is the development of an embroyo without fertilisation. It is specially developed in some ferns of sporophyte from the gametes which is done without fertilisation.

In certain ferns, gametophytes may develop from the edge of leaf margins from transformed sporangia.