1. Pollen studies in Carica papaya. I. Formation, development, morphology and production of pollen;Allen;S. Afr. J. Agric. Sci.,1963
2. Pollen studies in Carica papaya. II. Germination and storage of pollen;Allen;S. Afr. J. Agric. Sci.,1963
3. The essential role of calcium ion in pollen germination and tube growth;Brewbaker;Am. J. Bot.,1963
4. Pollination Mechanisms, Reproduction and Plant Breeding;Frankel,1977
5. Pollen tube growth in almond flowers;Griggs;Calif. Agric.,1975