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丹参开花与繁育特性研究
  • ISSN号:0513-353X
  • 期刊名称:《园艺学报》
  • 时间:0
  • 分类:S567.53[农业科学—中草药栽培;农业科学—作物学]
  • 作者机构:[1]山东农业大学农学院,山东泰安271018
  • 相关基金:山东省农业良种工程项目[2007]217-12
中文摘要:

通过田间观察和人工授粉等方法,对丹参(Salvia miltiorrhiza Bge.)的开花生物学和繁育特性进行了初步研究。结果表明:丹参为无限开花植物,总状花序上通常有两性花近50朵,单花花期5~7d,从花前2d到开花6h花粉活力和柱头可授性都较大,两者有效可遇期约为1.5d,可同花自交;丹参自交结实和自然结实主要是通过同株异花传粉获得;结合花粉/胚珠比、杂交指数以及繁育处理的结果认为,丹参不存在无融合生殖,繁育类型为兼性异交,自交亲和,需要传粉者;传粉媒介主要是蜂类。初步推断丹参为常异花授粉植物,并对丹参育种中适宜采用的杂交方法及育种途径进行了探讨。

英文摘要:

Field observations and artificial pollination experiments were conducted on the floral biology, pollination process and breeding characters of Salvia miltiorrhiza. The flowers were bisexual and never-ending, with fifty in a raceme. The blossom of a single flower could last approximately 5 - 7 days. Pollination peak last from 2 days before blossom to 6 hours after blossom, and the higher stigma receptive stage was the same time. Self-pollination was possible by temporal and spatial superposition of male and female organs for 2 days within the same flower. Seed set percentage of autogamous selfing in isolation without emasculation condition and geitonogamous selfing mainly pollinated through different flower in one plant The results indicated that no apomixis occurred, the breeding system was outcrossing with self-compatibility and pollinators were needed based on the pollen-ovule ratio (P/O) , out-crossing index and the results of emasculation, bagging and artificial pollination studies. The most frequent floral visitors were bees. It was inferred elementary that S. miltiorrhiza belong to often cross-pollinated plant. The crossing method and breeding strategy were discussed.

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期刊信息
  • 《园艺学报》
  • 中国科技核心期刊
  • 主管单位:中国科协
  • 主办单位:中国园艺学会
  • 主编:杜永臣
  • 地址:北京市中关村南大街12号
  • 邮编:100081
  • 邮箱:ivfyyxb@mail.caas.net.cn
  • 电话:010-68919523
  • 国际标准刊号:ISSN:0513-353X
  • 国内统一刊号:ISSN:11-1924/S
  • 邮发代号:82-471
  • 获奖情况:
  • 第一届全国优秀期刊奖,中国科协第三届优秀期刊奖,第二届国家期刊奖提名奖,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘(网络版),英国农业与生物科学研究中心文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:43371