Complex sentence: When there is more pollen applied to the stigma, as well as the fruit being larger and containing more seeds, the germination of the seeds is also faster and more likely, and the seedlings are larger.
Split into simpler sentences: When there is more pollen applied to the stigma, more seeds are produced in the fruits and the fruits are also larger with greater likelihood of maturation. The germination of the seeds is also faster and more likely, and the seedlings are larger.