PSATHYROSTACHYS HLASHANICA,WIDE CROSSES,FERTILIZATION,EMBRYO DEVELOPMENT,"/> 小麦与华山新麦草远缘杂交的受精和胚胎发育

四川农业大学学报 ›› 1997, Vol. 15 ›› Issue (01): 18-20,73.doi: 10.16036/j.issn.1000-2650.1997.01.006

• 研究论文 • 上一篇    下一篇

小麦与华山新麦草远缘杂交的受精和胚胎发育

丁春邦, 周永红   

  1. 四川农业大学基础部, 雅安市 625014
  • 收稿日期:1996-10-15 出版日期:1997-03-31 发布日期:2017-03-07
  • 基金资助:
    四川省教委重点科研项目资助

FERTILIZATION AND EMBRYO DEVELOPMENT IN HYBRIDIZATION BETWEEN WHEAT AND PSATHYROSTACHYS HUASHANICA

Ding Chunbang, Zhou Yonghong   

  1. Department of Basic Sciences, Sichuan Agricultural Lniversity/Yaan, Sichuan, China 625014
  • Received:1996-10-15 Online:1997-03-31 Published:2017-03-07

摘要: 本文对小麦(Triticum aestivum L.)和华山新麦草(Psathyrostachys huashanica Keng)杂交的受精和胚胎发育进行了观察。在检查过的210个小麦子房中,14.29%发生了双受精,产生了胚和胚乳;12.38%发生了单卵受精,只产生胚而无胚乳;10.00%发生了单极核受精,只产生胚乳而无胚;总受精率为36.67%,成胚率为26.67%。从250朵授过华山新麦草花粉的小麦颖花中,没有得到种子,即结实率为零。

关键词: 小麦[49EJ, 61DA], 华山新麦草, 远缘杂交[49CC, 49DB], 受精[45AD, 45CC]胚胎发育

Abstract: Observations were made on the fertilization and embryo development in inter-generic cross between Triticum aestivum L. cv. Chinese Spring and Psathy-rostachys huashanica Keng. Double and simple fertilization were observed in the pollinated florets. 14.29% of the 210 ovaries examed had double fertilization and had embryo and endosperm, and 12.38% had only embryo and 10.00% had only endosperm. The total rate of fertilization was 36.67%. The total rate of embryo formation was 26.67%. No seed was obtained from 250 wheat florets pollinated with Psathyrostachys huashanica Keng. The rate of seed set was zero.

Key words: WHEAT, PSATHYROSTACHYS HLASHANICA')">PSATHYROSTACHYS HLASHANICA, WIDE CROSSES, FERTILIZATION, EMBRYO DEVELOPMENT

中图分类号: 

  • S512.1