Seed dormancy and germination characteristics of Acer cinnamomifolium, a plant species endemic to China

Author:

Tang Cui-Fang1,Zhao Yu-Chen2,Ou Lin-Feng2,Zhong Cai-Hong2,Song Song-Quan3

Affiliation:

1. Guangzhou Ivy Seed Co., Ltd., Guangzhou 510630, China

2. College of Biological and Food Engineering, Huaihua University, Huaihua 418000, China

3. Institute of Botany, the Chinese Academy of Science, Beijing 100093, China

Abstract

Seed dormancy is an adaptive response of plants to environmental changes during long-term evolution. It plays an important role in plant survival and propagation. Acer cinnamomifolium, a plant species endemic to China, is an excellent garden and street tree species. However, dormancy and germination characteristics of A. cinnamomifolium seeds are not currently known. In the present paper, the mature seeds were used as experimental materials and we investigated the effect of temperature including alternating temperature, light, after-ripening, stratification and phytohormone on seed dormancy release and germination. After being incubated for 30 days, 0 to 10% of the seeds germinated in constant temperature (10, 15, 20, 25 and 30°C), while in alternating temperature regimes (20/10, 25/15 and 30/20°C), seed germination was < 35%. Dormancy release and germination of seeds can be increased by after-ripening, cold stratification and phytohormone treatments. We concluded that A. cinnamomifolium seeds have a non-deep physiological dormancy. Cold stratification at 4°C for 30 days and incubation thereafter at 20°C were found to be optimal for dormancy release and high seed germination.

Publisher

International Seed Testing Association

Subject

Horticulture,Plant Science,Agronomy and Crop Science

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