@article{1448551,
      recid = {1448551},
      author = {Yen, Chi, and Yen, Yang,},
      title = {Constitution of organs of the higher plants : the multiple  secondary axis theory /},
      publisher = {Springer,},
      address = {Singapore :},
      pages = {1 online resource},
      year = {2022},
      abstract = {This book written by Professor Chi Yen of Sichuan  Agricultural University in Chinese was published by China  Agriculture Press (ISBN 978-7-109-22791-0). It describes a  new theory on the constitution of organs of the higher  plants based on experimental evidence, the multiple  secondary axis theory. This theory states that all organs  of the higher plants are the constitution of multiple  secondary axes. The primary axis extends bipolarly to  initiate the above- and the below-ground parts of a plant,  from which secondary axes develop. Leaves are split,  expanded upper ends of terminal secondary axes. Stems are  merged lower ends of the secondary axes, Vascular bundles  are secondary structures developed within the axes which  interconnect with each other to form the central core of  the stem and branches and the veins in the leaves. Roots  form through the downward extension of the lower ends of  the axes toward or within the underground and branch roots  are unsplit secondary axes. All new axes emerge from the  inner side of existing, split axes. All floral organs  including fruits, seeds and vegetative reproduction organs  such as bulbils and plantlets, are deformed axes. This  theory is significant in guiding the scientific design of  the ideotype of crops to optimize the development of the  economically important organ(s) of a crop.},
      url = {http://library.usi.edu/record/1448551},
      doi = {https://doi.org/10.1007/978-981-19-1685-4},
}