胡麻农艺性状与品质性状的相关性分析

为了研究胡麻主要农艺性状与品质性状间的相互关系，为胡麻品质育种提供理论依据，以256份胡麻品种资源为材料，应用简单相关和典型相关分析方法，对胡麻主要农艺性状和品质性状间的相关性进行了分析。结果表明：胡麻农艺性状和品质性状间存在显著地相关性，通过典型相关分析可以归纳出6对主要典型变量，占两组性状间总相关信息的99.30%，在二者典型相关中起决定作用的主要性状有千粒重、单株果数、单株产量、单株分茎数及含油率、油酸、亚油酸、亚麻酸含量。其中，前3对典型变量所包含的相关信息分别占两组性状间全部相关信息的45.47%、30.53%和13.51%，所凝聚的生物学信息主要是千粒重与含油率、单株果数与油酸及亚麻酸含量、单株分茎数与含油率的相关性，表明千粒重大、单株果数多而分茎数较少的品种含油率及油酸的含量较高。因此，通过农艺性状可以实现对胡麻品质性状的间接选择。

Correlation Analysis Between Agronomic Traits and Quality Traits in Flax

To analyze the correlation between agronomic traits and quality traits in flax and provide scientific basis for flax quality breeding, the simple correlation and canonical correlation analysis was used to study the correlation between agronomic traits and quality traits in 256 flax cultivars. The results showed that, the correlation between agronomic traits and quality traits of flax was extremely significant. Using canonical correlation analysis, 6 pairs of canonical variables were obtained which contained 99.3% of the total correlation information between agronomic and quality traits. The main traits that play a decisive role in canonical correlation were 1000-seeds weight, fruits per plant, plant yield, stems per plant, oil content, oleic acid, linoleic acid and linolenic acid. Among the 6 pairs of canonical variables, the correlation information involved in front 3 pairs of canonical variables were 45.47%, 30.53% and 13.51% of total correlation information, respectively. The biologic information revealed were the correlation between 1000-seeds weight and oil content, fruits per plant and oleic acid, and stems per plant and oil content, respectively. It was probably indicated that the content of oil and oleic acid were high in the flax varieties with bigger seeds, more fruits and less stems. Therefore, it was feasible to select quality traits indirectly by agronomic traits.