欢迎访问《中国农学通报》,

中国农学通报 ›› 2008, Vol. 24 ›› Issue (12): 163-167.

• 林学 园艺 园林 • 上一篇    下一篇

毛竹种子萌发特性研究

蔡春菊, 彭镇华,, 高 健, 王怀训, 刘 凤   

  • 收稿日期:2008-08-27 修回日期:2008-10-06 出版日期:2008-12-05 发布日期:2008-12-05

SEED GERMINATION CHARACTERISTICS OF Phyllostachys edulis

Cai Chunju, Peng Zhenhua, , Gao Jian, Wang Huaixun, Liu Feng   

  • Received:2008-08-27 Revised:2008-10-06 Online:2008-12-05 Published:2008-12-05

摘要: 本文研究了环境因素和种子质量对毛竹种子萌发特性的影响。结果表明:影响毛竹种子萌发的环境因素中温度是主要决定因素。种子萌发的最适宜温度范围为20~30℃,低于15℃或超过35℃均不利于萌发,最适萌发温度25℃。变温处理有利于发芽整齐。在自然环境下光照不是毛竹种子萌发的必要条件,但高光强会抑制幼苗生长。种子饱满度是影响种子活力的重要因素之一,明显影响种子萌发进程、发芽整齐度及苗木健壮程度。GA3 处理能显著提高毛竹种子发芽势、发芽指数和活力指数,加快毛竹种子萌发进程,促进萌发后幼苗生长,GA3最适处理浓度范围为100~200mg/L。

关键词: 大田条件, 大田条件, 可调式控制系统, UV-B辐射增强, 水稻

Abstract: In this study, the effects of the environmental factors such as light indensity and temperature, and seed quality to the seed germination of Phyllostachys edulis were investigated.Results showed that temperature was a main limiting factor affecting the seed germination of Phyllostachys edulis. The optimal germination temperature ranges of Phyllostachys edulis were between 20℃ and 30℃.Germination was stopped below 15℃ or over 35℃.The optimal temperature for seed germination of Phyllostachys edulis was 25℃. Alternate temperatures were helpful to gernination uniformity .Light was not a significant and essential factor for the germination,but high light intensity could inhibit seedling growth.Seed plumpness was a crucial factor for seed vigor, obviously influenced germination course, germination uniformity and seedling health.GA3 increased germination energy, index of germination and index of vigor obviously, accelerated germination course and seedling growth. The optimal concentration ranges of GA3 were between 100~200mg/L.