【摘要】 对鹤岗和铁力两个红松种子园的15个无性系的种子性状进行观测与分析,结果表明:千粒重、种仁重、种皮重指标差异极显著,出仁率、种仁重/种皮重、种长、种宽、长宽比指标差异不显著。千粒重指标与种仁重、种皮重、种长、种宽,种仁重/种皮重与种长、种宽,种皮重与种长、种宽,种长与种宽均呈极显著正相关关系,出仁率指标与所观测性状均无显著相关性。与种子质量相关的指标变异系数在两个种子园中差异较大,而种子形态指标的变异系数差异较小,说明种子质量受环境因子影响较大,而种子形态受影响较小。不同无性系的种子有关性状除受环境影子影响外,还与基因型×环境的交互作用有关。更多还原

【Abstract】 Morphological characteristics of Pinus koraiensis seed in fifteen clones in seed orchards from Hegang and Teili were analyzed,the results suggested that there were extremely significant differences in thousand kernel weight,seed kernel weight and seed coat weight index,however,the differences among kernel percent,seed kernel / coat weight,length,width and length- width ratio index were not significant. Thousand kernel weight were significantly and positively correlated to seed kernel weight,coat weight,weight and length; seed kernel weight / coat weight were significantly and positively correlated to weight and length; seed coat weight were significantly and positively correlated to weight and length,so did width and length. Moreover,kernel percent were no significant correlation with other characteristics. Index variation coefficient correlating with seed quality appeared a large difference among the two seed orchards,and the variation coefficient of seed form index showed less differences,explaining that seed qualities were greatly influenced by environmental factors,seed form were less affected. Seed characteristics were not only affected by the environment factors,but also related to the interaction of genotype and environment.更多还原