四川农业大学学报 ›› 1998, Vol. 16 ›› Issue (04): 444-451.doi: 10.16036/j.issn.1000-2650.1998.04.012

• 研究快报 • 上一篇    下一篇

马尾松种子园花期观察与分析

吴强1, 单翠英1, 易东2, 谭定群2   

  1. 1. 重庆市忠县林业局, 忠县 404300;
    2. 重庆市忠县国营巴云林场, 忠县 404300
  • 收稿日期:1997-08-30 出版日期:1998-12-31 发布日期:2017-04-21

OBSERVATION AND ANALYSIS ON THE FLOWERING PERIOD OF PINUS MASSONIANA LAMB IN SEED ORCHARD

Wu Qiang1, Shan Cuiying1, Yi Dong2, Tan Dingqun2   

  1. 1. Forestry Bureau of Zhongxiang County, Chongqing, China 404300;
    2. Bayun Forest Farm of Zhongxiang County, Chongqing, China 404300
  • Received:1997-08-30 Online:1998-12-31 Published:2017-04-21

摘要: 通过对忠县马尾松种子园27个无性系花期的观察,结果表明:雌雄花期历时13d,雄球花散粉盛期只有3.3d,雌球花可授粉盛期有6d;无性系间及无性系内分株间花期虽有差异性,但用反映亲本在开花期间母本接受父本花粉机率的开花物候重叠指数对无性系花期分析表明27个无性系间及无性系内分株间花期同步性是较好的,能随机交配。

关键词: 花期, 种子园, 开花物候, 重叠指数, 马尾松

Abstract: The flowering period of Pinus Massoniana Lamb of 27 clones was observed in seed orchard in this paper, showing the results showed that the flowering period of female and male last 13 days. It is 3.3 days during which more pollen releases, and it is 6 days of opitmum receptivity period of female. The flowering period of different clones and different ramets within clones is obviously different. The synchronization of flowering period of 27 clones and different ramets within clones was analysed by using index of phenological overlap in flowering of reflecting probability of female cone accepting pollen of paternal among parent plants during flowering, and it is better. The different clones and different ramets within clones could outcross randomly.

Key words: THE FLOWERING PERIOD, SEED ORCHARD, FLOWERING PHENOLOGY, INDEX OF OVERLAP, PINUS MASSONIANA LAMB

中图分类号: 

  • S718.4-339