geotropism
Positive geotropism is where the roots grow towards gravity.
Tropism
Miles Groth was born in 1946.
Helge Groth was born in 1913.
Helge Groth died in 1966.
Henrik Groth was born in 1903.
Henrik Groth died in 1983.
Jacob Groth was born in 1951.
Gary Groth was born in 1954.
Annette Groth was born in 1954.
Klaus Groth died in 1899.
Klaus Groth was born in 1819.