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首页> 外文会议>Meeting of the European Association for Research on Plant Breeding Fodder Crops and Amenity Grasses Section >Recent Achievements in Breeding for Turf Quality Under Biotic and Abiotic Stress
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Recent Achievements in Breeding for Turf Quality Under Biotic and Abiotic Stress

机译：生物和非生物胁迫下草皮质量育种的最新成果

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The genetic gain from breeding of turf varieties of Festuca rubra, Poa pratensis, Lolium perenne was assessed using data from 204 candivars entered into Norwegian/SCANTURF variety (VCU) testing from 1986 to 2007, and 675 varieties entered into the French/GEVES variety testing from 1982 to 2010. Among the three subspecies of Festuca rubra, ssp. litoralis and ssp. rubra showed the strongest improvements in overall turf quality in the Nordic (0.67 % per year) and GEVES programs (0.99 % per year), respectively. The main reasons for these improvements were better winter hardiness and resistance to Microdochium nivale in ssp. litoralis and better persistency associated with higher tiller density in ssp. rubra. For Poa pratensis there was no gain in turf quality in France, but a significant improvement (0.94 % per year) associated with higher density, finer leaves and less height growth in the Nordic program, which, unlike the GEVES trials, included trials at low (10-20 mm) mowing height. Lolium perenne showed significant improvement in both programs and all characters studied, but the progress was smaller for persistency, overall winter hardiness and resistance to red thread than for tiller density, wear tolerance and tolerance to rust.
机译：从草坪品种紫羊茅，早熟禾育种的遗传增益，黑麦草用从204个candivars进入挪威数据/ SCANTURF品种（VCU）测试1986至2007年进行评估，并进入了法国/ GEVES各种检测675个品种从1982年到2010年在紫羊茅，SSP的三个亚种。 litoralis的和SSP。杨梅显示，在北欧整体草坪质量（每年0.67％）和GEVES计划（每年0.99％）最强的改进，分别。这些改进的主要原因是在SSP更好的抗寒和抗微结节nivale。 litoralis的和更好的持久性与SSP高密度分蘖相关。杨梅。对于草地早熟禾有在法国草坪质量没有收获，但具有较高的密度相关的显著改善（每年0.94％），更细的叶子少身高的增长在北欧程序，它不像GEVES试验，包括试验在低（10-20毫米）割草高度。黑麦草显示，这两个程序显著改进和研究的所有文字，但进展是为持续性，整体抗寒和抗小到红线比分蘖密度，磨损容忍和宽容生锈。

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