Sexual reproduction has played the most crucial role in evolution of plants. The primitive plants were cryptogames in nature which did not produce flowers, fruits or seeds.These primitive plants were completely devoid of sexual reproduction and dependent upon reproduction by generation and dispersal of spores. These were later evolved into phanerogames which produced seeds but these were still devoid of sexual reproduction. With advent of evolution, the plants developed more advanced features such as flowers which promoted formation of fruits and seeds. This simultaneously gave rise to angiosperms and gymnosperms. These evolutionary forms of plants were capable of performing sexual reproduction primarily by cross-pollination. These plants slowly increased variation and speciatin in the ecosystem which lead to establishement of many new species. Infact, with these evolutionary successions, the plants have evolved into their present form where sexual reproduction plays a most crucial role by establishing multiple types of species in the history of plant evolution. Thus, sexual reproduction has evolved many different times and in many differenty types in the evolutionary history of plants with generating more than 20 plants alone. This states that the statement is true. Solution Sexual reproduction has played the most crucial role in evolution of plants. The primitive plants were cryptogames in nature which did not produce flowers, fruits or seeds.These primitive plants were completely devoid of sexual reproduction and dependent upon reproduction by generation and dispersal of spores. These were later evolved into phanerogames which produced seeds but these were still devoid of sexual reproduction. With advent of evolution, the plants developed more advanced features such as flowers which promoted formation of fruits and seeds. This simultaneously gave rise to angiosperms and gymnosperms. These evolutionary forms of plants were capable of performing sexual reproduction primarily by cross-pollination. These plants slowly increased variation and speciatin in the ecosystem which lead to establishement of many new species. Infact, with these evolutionary successions, the plants have evolved into their present form where sexual reproduction plays a most crucial role by establishing multiple types of species in the history of plant evolution. Thus, sexual reproduction has evolved many different times and in many differenty types in the evolutionary history of plants with generating more than 20 plants alone. This states that the statement is true..