Current Horticulture
Open Access
  • Year: 2017
  • Volume: 5
  • Issue: 2

Breaking seed dormancy in flower crops: a review

  • Author:
  • A K Tiwari1,, T N Tiwari2, Govind Pal3, H K Singh4, Gunjeet Kumar5
  • Total Page Count: 12
  • Page Number: 3 to 14

1Senior Scientist, Division of Floriculture and Landscaping, ICAR-IARI, New Delhi

2Senior Scientist, Plant Physiology, tntdsr@gmail.com

3Senior Scientist, Agriculture Economics

4Research Scientis, Livelihood Generation, Media Lab Asia, Deity, MCIT, GOI, New Delhi

5Principal Scientist, Division of Floriculture and Landscaping, IARI, New Delhi

ICAR-Indian Institute of Seed Science, Kushmaur, Maunath Bhanjan, Uttar Pradesh, 275 103

*Corresponding author: drajaitiwari@gmail.com

Online published on 4 December, 2018.

Abstract

The seed dormancy in flower crops impacts both seed production and their germination. Flower crops display diverse mechanisms for seed dormancy like hard seed coat, immature, rudimentary embryo and inhibitors. In some seeds which are dormant at harvesting, dormancy breaks down naturally over the time whereas other crops require some form of pre-treatment. There are several methods used for specific genera. It can be broken by soil melting and freezing, microorganism's activity, forest fires, soil activity and being eaten by animals, in normal conditions. This review surveys and categorizes of different seed dormancy conditions found in flowering plants. Flower crops are listed according to their dormancy types. There are two types of dormancy, primary and secondar. Specific examples are given for each type of dormancy along with their methods to alleviate dormancy

Keywords

Seed dormancy, Flower crops Genera, Scarification, Leaching, Germination, Embryo Dormancy