Media type: E-Article Title: Early embryogenesis in tropaeolum majus L.: Evolution of DNA content and polyteny in the suspensor Contributor: Nagl, Walter imprint: Elsevier BV, 1976 Published in: Plant Science Letters Language: English DOI: 10.1016/0304-4211(76)90038-9 ISSN: 0304-4211 Keywords: Soil Science ; Agronomy and Crop Science Origination: Footnote: