当前位置: 首页 > 文章 > 影响油松种子园胚珠败育的因素分析 河南林业科技 2014,34 (3) 10-12
Position: Home > Articles > Studies on Ovule Abortion of Pinus Tabulaeformis Carr.Seed Orchard Journal of Henan Forestry Science and Technology 2014,34 (3) 10-12

影响油松种子园胚珠败育的因素分析

作  者:
何玉芳
单  位:
国有卢氏县东湾林场
关键词:
油松种子园;胚珠败育
摘  要:
提高球果出籽率是油松种子园种子产量的关键因素之一。在卢氏种子园结实初期胚珠败育率达到了70%,进入盛果期下降到45%。不同无性系间胚珠败育有很大差异,无性系间异交可配性、花期同步和自交是引起胚珠败育的主要因素。在结实初期辅助授粉可以显著提高种子产量,进入盛期后无效,但可以改善种子的遗传组成,增加种子的遗传多样性。
译  名:
Studies on Ovule Abortion of Pinus Tabulaeformis Carr.Seed Orchard
作  者:
HE Yu-fang;Dongwan Forest Farm of Lushi County;
关键词:
Pinus tabulaeformis Carr.;;Ovule abortion
摘  要:
The key to raise seed production lies in the enhancement of ratio of seed to cone. Ovule abortion rate reached 70% in initial period, 45% in full period in Lushi. There was great difference in ovule abortion among clones, the outcrossing compatibility and the overlap of flowering period among clones and selfing were also a dominant factor to ovule abortion. The supplemental pollination could significantly increase seed production in initial period, no in full period, but could improve the genetic composition and increase genetic diversity of seeds.

相似文章

计量
文章访问数: 5
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊