论文部分内容阅读
于１９８５～１９９５年在河南省卢氏县油松种子园连续观测了３１个无性系的雌雄球花产量，结果表明，雌、雄球花量无性系间差异达极显著水平，两者无性系重复力在分析的６ａ中分别高于６５．１２％和８６．４９％。无性系雌、雄球花量与年度的互作效应亦达到极显著水平，其方差分量分别为１２．０３％和３７．９４％。由于雌、雄球花量存在大小年现象，无性系选择尚须在稳定性筛选的基础上进行。不同无性系雌、雄球花量年份稳定性差异大，所分析的３１个无性系中，雌、雄球花量稳定的无性系各有２０和２２个，因此，选择花量大且稳定的无性系建园是可能的。此外，还就雌、雄球花量变异对球果中饱籽和空籽数及种子遗传组成的影响作了讨论
The yields of female and male flowers of 31 clones were continuously observed in the pine tree orchard of Lushi County, Henan Province from 1985 to 1995. The results showed that there was a significant difference between the female and male flowers in clonal clones Repetitive force was higher than 65.12% and 86.49% in the analyzed 6a, respectively. Clonal female and male ball flower annual interaction effect also reached a significant level, the variance components were 12.03% and 37.94%. Due to the size of female and male flowers, the selection of clones should be based on the stability screening. In different clones, the annual stability of female and male pollen flowers varied greatly. Among the 31 clones analyzed, 20 and 22 clones with stable flower numbers of female and male were selected respectively. Therefore, the selection of large and stable flowers Cloning is possible. In addition, the effects of variation of female and male ball size on the number of full and empty seeds in seeds and the genetic composition of seeds were also discussed