What happened after plants first became able to live on land?

After the plants became able to live on land, and the reason for that being the ability for higher glucose production, they managed to influence numerous things on the planet and change it drastically.

Some of the more marking things that happened because of the plants that started to live on land were the change in the composition of the gasses in the atmosphere, the formation of soils, and climate changes.

The plants perform a process called photosynthesis in order to make their own food. For this process they use carbon dioxide. The carbon is used, while the oxygen is a waste product that is released. Over time, through this process, the plants managed to significantly increase the oxygen levels on the Earth, making it suitable for the animals to move in as well on the land.

The increase of oxygen in the atmosphere resulted in climate changes, as the oxygen makes the climate cooler, thus in general the climate cooled off. Also, with their shade, the plants manage to reduce the temperature on the surface, the trees also being able to slow down and affect the low air movements...

The plants, as all organisms, eventually die. When they die, they decompose. In this manner they introduced the land with the first biomass, thus the rocks and the biomass started to mix. Over time this led to the formation of multiple types of different soils.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.