98份燕麦品种性状变异的研究

Study on the Trait Variation of 98 Oat Varieties

[目的]介绍98份燕麦种质资源评价结果。[方法]从加拿大温尼伯农业研究分站引进的98份燕麦品种,种植在青海省畜牧科学院草原研究所试验田内,通过引种试验,研究了燕麦品种在西宁市的性状。[结果]品种间的性状差异很大,不同品种各性状最大与最小值的范围为:生育期109～138d,千粒重11.0～35.3g,茎粗0.32～0.71cm,株高141～210cm,叶长29～55cm,叶宽1.0～3.1cm,单株粒重4.45～15.03g,单株秸秆重9.60～24.78g。株高、生育期和产量三者之间呈正相关关系。18个相同品种的燕麦,在西宁市的平均生育期较在加拿大温尼伯站长20.1d,株高平均增加75.8cm。[结论]引进的98份燕麦品种均能适应西宁市地区的气候条件,生长发育良好,从中初步筛选出20份性状表现较好的品种作进一步观察筛选。

[Objective] The study aimed to introduce the results of the valuation on the 98 oat germplasms.[Method] 98 oat varieties were introduced from Wennibo Agricultural Research Branch Station in Canada and were planted in the field of Grasslands Institute of Qinghai Academy of Animal Husbandry Sciences.The traits of oat varieties in Xining City were studied through the introduction experiment.[Result] There were significant difference on the traits among varieties.The traits of different varieties in the range of minimum and maximum were as follow：growth stage 109-138 d,grain weigh 11.0-35.3 g,stem diameter 0.32-0.71 cm,plant height 141-210 cm,leaf length 29-55 cm,leaf width 1.0-3.1 cm,seed weight of per plant 4.45-15.03 g,straw weight of per plant 9.60-24.78 g.There was a positive correlation among 3 traits of plant height,growth stage and yield.As for 18 same oat varieties,their average growth stage in Xining City was longer than that in Wennibo Station of Canada and their plant height was increased by 75.8 cm on average.[Conclusion] The introduced 98 oat varieties all could adapt the climatic conditions of Xining area and grown better.20 oat varieties that had good performance were preliminarily screened out for further observation and screening.