植物学报 ›› 2017, Vol. 52 ›› Issue (2): 175-178.DOI: 10.11983/CBB16131

• 研究报告 • 上一篇    下一篇

木薯两性花及其种子的形态特征

俞奔驰, 韦丽君*(), 李军, 田益农, 卢赛清   

  1. 广西壮族自治区亚热带作物研究所, 南宁 530001
  • 收稿日期:2016-06-13 接受日期:2016-10-16 出版日期:2017-03-01 发布日期:2017-04-05
  • 通讯作者: 韦丽君
  • 作者简介:

    # 共同第一作者

  • 基金资助:
    广西科技计划(桂科No.AB16380080)、国家木薯产业技术体系栽培与植保/土壤与肥料岗(No.CARS-12-gxlj)和广西科学研究与技术开发计划(桂科合No.14123001-1-5, 桂科合No.14125007-1-4)

Morphological Characteristics of Bisexual Flowers and Seeds in Cassava

Benchi Yu, Lijun Wei*, Jun Li, Yinong Tian, Saiqing Lu   

  1. Guangxi Subtropical Crops Research Institute, Nanning 530001, China
  • Received:2016-06-13 Accepted:2016-10-16 Online:2017-03-01 Published:2017-04-05
  • Contact: Wei Lijun
  • About author:

    # Co-first authors

摘要: 以前期发明的一种木薯(Manihot esculenta)调控开花技术为基础, 成功研发出木薯两性花诱导技术, 并发现诱导出的木薯两性花能自花授粉结实。该文报道了木薯两性花、两性花自花授粉发育的蒴果及其种子的形态特征。木薯两性花同时具有雌蕊和雄蕊, 而单性花只具有雌蕊或雄蕊; 两性花蒴果卵圆形且长宽比大, 单性花蒴果阔椭圆形且长宽比小; 两性花种子种脊不隆起, 单性花种子种脊隆起明显。两性花和两性花种子是珍贵的木薯育种材料, 对揭示木薯的遗传特性及培育木薯新种质具有重要意义。

Abstract: With the flowering regulation technology of cassava recently developed by our research team, we successfully induced bisexual cassava flowers. These bisexual cassava flowers had the ability for self-pollination bearing fruits. Here, we report the morphological characteristics of bisexual cassava flowers and their capsules and seeds from self-pollination development. Bisexual flowers contain both pistils and stamens, but unisexual flowers contain only one of these. The bisexual flower capsule is ovate and has a large length/width, but the unisexual flower capsule is broadly ovate and has a small length/width. The raphe of bisexual flower seed is not uplifted, but that of unisexual flower seed is uplifted. Bisexual flowers and their seeds are valuable for studying heredity and breeding in cassava, which has important significance for revealing heritable characteristics and cultivating new germplasm in cassava.