水生生物学报2018，Vol.42Issue(2)：428-438,11.DOI:10.7541/2018.055
铜藻苗种繁育研究
STUDY ON SEED BREEDING OF SARGASSUM HORNERI
摘要
Abstract
The current study explored features of maturated parental materials, embryonic development and young sporophyte germlings, and investigated effects of environmental factors, such as water temperature, salinity, light in-tensity and photoperiod,on the early development of young sporophyte germlings of Sargassum horneri collected from Mazu Ao, Nanji Island, Zhejiang Province, from 2011 to 2013. The results showed that the peak period for natural re-production of Sargassum horneri was from late May to early March in each year in the coastal area of southern Zhe-jiang with water temperature under 13-18℃. The suitable temperature for the development of the zygotes was 10-20℃, and suitable salinity was 20-30, in which fertilized zygotes synchronously developed into young sporo-phyte germlings with strong rhizoids after about 48h incubations. In addition, the proper environmental factors for the growth and development of young sporophytes with rhizoid are under the temperature of 20℃, salinity of 20-30 ppt, light intensity of 4500lx, and photoperiod of 12-18h/d. In the early stage, the flowing water and air inflation were be-neficial to indoor cultivations of the young sporophytes that developed to seedlings with 2-3 leaves after 18-20 days of cultivation. Hard cement bricks with rough surface were suitable for attachment and growth of young sporophytes in Sargassum horneri.关键词
铜藻/人工育苗/胚胎发育/前期培育Key words
Sargassum horneri/Artificial breeding/Embryonic development/Pre-cultivation分类
农业科技引用本文复制引用
张鹏,王铁杆,钟晨辉,严兴洪,张立宁,刘颖..铜藻苗种繁育研究[J].水生生物学报,2018,42(2):428-438,11.基金项目
国家海洋公益性行业科研专项(201105008-4) （201105008-4）
浙江省科技计划项目(2012F20028)资助[Supported by the Public Science and Technology Research Funds Project of Ocean(201105008-4) （2012F20028）
Project Fund from Science and Technology Project of Zhejiang Province(2012F20028)] （2012F20028）
