畜牧与饲料科学 ›› 2012, Vol. 33 ›› Issue (11): 67-67.doi: 10.12160/j.issn.1672-5190.2012.11.025

• 试验研究 • 上一篇    下一篇

驼绒藜属3种植物开花习性及雌花柱头微形态研究

贺俊英[1] 王六英[1] 易津[1] 阿拉塔[2] 于斌[2]   

  1. [1]内蒙古农业大学,内蒙古呼和浩特010018 [2]内蒙古畜牧科学院,内蒙古呼和浩特010030
  • 出版日期:2012-11-20 发布日期:2012-11-20
  • 通讯作者: 贺俊英
  • 作者简介:贺俊英(1976-),女,博士,主要从事牧草生物学研究。
  • 基金资助:
    国家自然科学基金(C39960010).

Study on Flowering Habit and Stigma Micromorphology of Three Ceratoides Species

HE Jun-ying, WANG Liu-ying, YI Jin, Alata, YU Bin ( 1.Inner Mongolia Agricultural University, Hohhot 010018, China;2.Inner Mongolia Academy of Animal Husbandry Sciences, Hohhot 010030,China)   

  • Online:2012-11-20 Published:2012-11-20

摘要: 研究驼绒藜属3种植物开花规律、开花日动态、结实率及柱头微形态。结果表明.华北驼绒藜和驼绒藜雄花开花高峰均在上午8:00—10:00,有利于传粉和受精,而北美驼绒藜雄花在中午11:00-13:00达开放高峰,其雌雄花开花高峰期不一致,不利于传粉、受精,从而结实率降低。三者的开花最适温度基本一致,都在20~24℃。三者的雌花均在下午14:00左右达到开放高峰。雌花柱头微形态研究结果表明,华北驼绒藜的柱头有利于接受花粉,而北美驼绒藜的柱头不利于接受花粉。此外.华北驼绒藜与驼绒藜的雌、雄花花期相遇结实率较高,而北美驼绒藜因花期不遇.故导致结实率低。

Abstract: A study of 3 Ceratoides species for their flowering habit,daily flowering dynamic change,fertility,and stigma micromophology showed that the male flowers of C. arborescens and C. latens reached their full bloom at 8:00-10:00 am,while the male flowering peak of C. lanata falls on 11 : 00-13 : 00. The bloom peak of the female flowers of all 3 occurred at 14 : 00. Though the most congenial temperature for flowering of all the 3 species was 20-24 ℃, the female stigma micromorphology of C. arborescens was best suited for gathering pollen than the other 2 species. Therefore,C. arborescens boasts the highest seed- bearing rate. Moreover, the flowering period of C. arborescens and C. latens last longer than that of C. lanata, and the highest seed-bearing rate of C. arborescens, and the lowest seed-bearing rate of C. lanata.

中图分类号: