New linseed accessions in the VIR collection, suitable for dual utilization (seed and fiber) in the North-Western Region of the Russian Federation

ABSTRACT

Market demand for flax fiber continues to grow. Partially, it can be replaced with linseed fiber. In 2015–2017, 40 linseed accessions were evaluated in North-West of Russia. Warm-water retted fiber was tested with the technique used for fiber flax. Contrasting weather conditions in 2015–2017 made it possible to compare accessions characters. Since plant height and yield of long fibers are determined mainly by genotype, it is possible to select promising genotypes directly during the breeding process under unusual conditions. A significant contribution of genotypes to the formation of fiber quality characters and duration of the growing season facilitates the breeding process. A stable close relationship between plant height with straw yield and a weaker one with long fiber content can simplify the selection of productive plants according to their height in the initial stages of breeding. The absence of close links between fiber quality and other characteristics makes feasible independent selection to improve product quality. A three-year-long evaluation of linseed accessions has shown the possibility of such cultivar cultivation in the North arias in order to produce both fiber and seeds. On the basis of these results, promising accessions suitable for dual utilization have been identified.

摘要

亚麻纤维的市场需求持续增长. 部分可以用亚麻籽纤维代替。2015-2017年，在俄罗斯西北部对40份亚麻籽种质进行了评估. 采用纤维亚麻技术对温水脱胶纤维进行了试验. 对比2015-2017年的天气状况，可以比较种质特征. 由于长纤维的株高和产量主要由基因型决定，在不寻常的条件下，可以在育种过程中直接选择有前途的基因型. 基因型对纤维品质性状形成的显著贡献和生长季节的持续时间有利于育种过程. 株高与秸秆产量关系稳定密切，长纤维含量关系较弱，可简化育种初期按株高选择生产性植株. 由于纤维质量与其它特性之间缺乏密切联系，因此可以通过独立选择来提高产品质量. 对亚麻子种质的三年评估表明，为了生产纤维和种子，在北部阿里亚斯种植这种品种是可能的. 在此基础上，筛选出了适合二次利用的优良材料.

KEYWORDS:

• Linum usitatissimum l., linseed dual utilization
• seed productivity
• linseed fiber
• influence of the environment conditions
• correlations

关键词::

• 亚麻籽双重利用
• 种子生产力
• 亚麻籽纤维
• 环境条件的影响
• 相关性

Acknowledgments

The research was performed within the framework of the State Task according to the theme plan of VIR, Project No 0662-2019-0001 “The Collection of Oil and Fibre Crops at VIR: Maintenance, Study, and Genetic Diversity Expansion,” State Registration No АААА-А19-119013090159-5.

Disclosure statement

The authors declare no conflict of interest.