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中国农学通报 ›› 2020, Vol. 36 ›› Issue (14): 64-68.doi: 10.11924/j.issn.1000-6850.casb19010062

• 林学·园艺·园林 • 上一篇    下一篇

22个常绿杜鹃远缘杂交种子萌发特性

许凤1,2,3, 宋杰1,2,3, 张艺萍1,2,3, 张宝琼4, 杨秀梅1,2,3, 张丽芳1,2,3, 王丽花1,2,3, 解玮佳1,2,3()   

  1. 1 云南省农业科学院花卉研究所,昆明 650200
    2 国家观赏园艺工程技术研究中心,昆明 650200
    3 云南省花卉育种重点实验室,昆明 650200
    4 云南农业大学,昆明 650500
  • 收稿日期:2019-01-10 修回日期:2019-08-09 出版日期:2020-05-15 发布日期:2020-05-20
  • 通讯作者: 解玮佳
  • 作者简介:许凤,女,1984年出生,助理研究员,硕士,主要从事花卉育种研究。通信地址:650200 云南省昆明市盘龙区北京路2238号 云南省农业科学院花卉研究所,Tel:0871-65895021,E-mail: 148422486@QQ.com。
  • 基金资助:
    国家自然科学基金项目“马缨杜鹃杂交胚胎发育/败育的差异发育机理研究”(31560225);云南省科技计划项目“云南主要花卉品种选育与高效繁育技术研发”(2018BB010);科技人才和平台计划“云南省技术创新人才培养配套项目”(2018HB082);云南省科技创新人才计划“科技领军人才培养项目”(2016HA005)

22 Distant Hybrid Seeds of Rhododendron: Germination Characteristics

Xu Feng1,2,3, Song Jie1,2,3, Zhang Yiping1,2,3, Zhang Baoqiong4, Yang Xiumei1,2,3, Zhang Lifang1,2,3, Wang Lihua1,2,3, Xie Weijia1,2,3()   

  1. 1 Flower Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650200
    2 National Engineering Research Center for Ornamental Horticulture, Kunming 650200
    3 Key Lab of Yunnan Flower Breeding, Kunming 650200
    4 Yunnan Agricultural University, Kunming 650500
  • Received:2019-01-10 Revised:2019-08-09 Online:2020-05-15 Published:2020-05-20
  • Contact: Xie Weijia

摘要:

为实现野生种质的育种应用,筛选出适宜作为亲本的杜鹃花种类。本研究以4个常绿杜鹃亚属野生种(大白杜鹃、宽杯杜鹃、蓝果杜鹃和黄杯杜鹃)为父本与17个常绿杜鹃花品种杂交所获得的种子为试验材料,研究各杂交种子的形态特征、种子发芽率、种子发芽势、种子发芽指数和种子平均发芽时间等,以期对各种类作为父本应用的杂交优势性进行评价。结果表明:外形饱满、两端有翅的纺锤形瘦长种子更易于萌发,4个常绿杜鹃亚属野生种作为父本的优势性依次为:大白杜鹃>宽杯杜鹃>蓝果杜鹃>黄杯杜鹃。

关键词: 杜鹃, 杂交种子, 萌发特性, 父本, 优势

Abstract:

The paper aims to realize the breeding application of wild germplasm, select Rhododendron species which are suitable for parents. Taking 4 wild species of subgenus Rhododendron (Rhododendron decorum, Rhododendron sinofalconeri, Rhododendron. cyanocarpum, Rhododendron wardiit) as male parents and seeds obtained from hybridization with 17 varieties of Rhododendron as experimental materials, we studied the morphological characteristics, the germination rate, the germination potential, the germination index and the average germination time of hybrid seeds, in order to evaluate the hybrid advantages of the 4 wild species as male parents. The results show that spindle-shaped and slender seeds with full shape and wings at both ends are easy to germinate, and the superiority of the 4 wild species of subgenus Rhododendron as male parents is Rhododendron decorum>Rhododendron sinofalconeri>Rhododendron. cyanocarpum>Rhododendron wardiit.

Key words: Rhododendron, hybrid seeds, germination characteristics, male parent, advantages

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