Coix lacryma-jobi L. (Jobstears): In Vitro Regeneration

  • C. S. Sun
  • D. Y. Wang
Part of the Biotechnology in Agriculture and Forestry book series (AGRICULTURE, volume 7)

Abstract

Jobstears (Coix lacryma-jobi) (Fig. 1) belongs to the Gramineae and is a diploid species (2n = 20, Smith 1976). It is widely distributed in the temperate zones in the world, especially in humid areas of low latitude. In China, it is mainly distributed in the south provinces and there are wild and cultivated types of jobstears (Anon. 1961a). Jobstears is a perennial root species and has strong root system with thick fibrous roots (3 mm in diameter). The stem is straight, 1 –1.5 m high and has ten nodes and some branches. The leaf is conifer-shaped and 30 cm in length and 1.5–3 cm in width, midrib thick and prominent. Unisexual flower, monoexism and axillary or top-growing raceme. Female spikelets are at the base of inflorescence and male spikelets at the top of the inflorescence. The blooming period is July–September and in September–October the grains ripen.

Keywords

Sugar Hydrolysis Sucrose Starch Corn 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • C. S. Sun
    • 1
  • D. Y. Wang
    • 2
  1. 1.Institute of BotanyAcademia SinicaBeijingChina
  2. 2.China National Rice Research InstituteHangzhouChina

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