摘要
对143份外引亚麻品种进行聚类分析,形成了亚麻品种的系统分类,亚麻可分为六个类群。其中品种群Ⅰ包含两个亚群,第一亚群又包含两个亚类。第一亚类小区产量较高,第二亚类工艺长度最长,蒴果有开裂性,亚群Ⅱ有效分茎最多,品种群Ⅱ倒伏严重,品种群Ⅲ有抗倒伏性,株高最高,每果粒数最多,品种群Ⅳ抗倒伏,品种群Ⅴ千粒重最大,品种群Ⅵ主茎分枝数最多,单株果数最多,单株产量最高,这一类群总体性状比较优良,适用于生产。分析发现国外亚麻品种性状表现丰富,但是大多数在生产中没有直接利用价值,有一些材料的个别性状较为突出,可以作为育种亲本,品种23、12和24性状比较优良可以作为油用亚麻的矮源亲本,品种群Ⅵ的品种11和118单株果数多,单株产量高,是很宝贵的种质资源。
Fifteen traits of 143 germplasm resources introduced from abroad were analysed using cluster analysis method.A classification system of flax was established.All germplasm resources involved was divided into six groups.GroupⅠconsisted of 2 subgroups.Subgroup 1 included 2 subcategories.Subcategory 1 had better yields per plot.Subcategory 2 had the longest plant length while their capsules were dissilient.Subgroup 2 had the most plant stems.The plants of groupⅡlodged strongly.Group Ⅲ had few lodged plants,but they had the highest plant height and the most seeds per boll.Group Ⅳ had few lodged plants.The 1000-seed weight of group Ⅴ was the best.Group Ⅵ had the most ramification,bolls per plant,highest yields per plant.This group had excellent characteristic and can be applicable to the production.The results showed that the foreign flax resources expressed rich traits.Most of them had few values in the production but some can act as parents materials in breeding because of their excellent traits,such as the 23、12 and 24 germplasm in subgroupⅡ.The 11 and 118 germplasm in group Ⅵ were precious germplasm,because they had more bolls per plant and higher yields per plant.
出处
《西北农业学报》
CAS
CSCD
北大核心
2008年第5期200-203,共4页
Acta Agriculturae Boreali-occidentalis Sinica
基金
农业部、财政部(948)项目“亚麻主要病害防治综合技术引进”(2005-Z29)
关键词
外引亚麻
品种资源
聚类分析
Foreign flax,Germplasm resource,Cluster analysis
