Length of pollen tube depends on the distance between A. Pollen grain and upper surface of stigma B. Pollen grain on upper surface of stigma and ovule C. Pollen grain in anther and upper surface of stigma D. Upper surface of stigma and lower part of style

Length of pollen tube depends on the distance between A. Pollen grain and upper surface of stigma B. Pollen grain on upper surface of stigma and ovule C. Pollen grain in anther and upper surface of stigma D. Upper surface of stigma and lower part of style

The length of pollen tube depends on the distance between pollen grain on upper surface of stigma and ovule.