4个燕麦品种在黄河滩区生产性能和农艺性状的研究

在河南省黄河滩区土壤和气候条件下,燕麦播种量为225 kg/hm²时,通过对比试验,分别测定五寨、林纳、坝莜3号和加燕4个燕麦品种在不同生长期茎叶比、鲜干比、株高、干草产量等指标,研究不同燕麦品种生产性能和农艺性状的动态变化。结果表明：燕麦4个品种在扬花期茎叶比分别为65.34%、58.18%、70.05%、54.72%,鲜干比分别为3.12、3.17、3.07、3.31;燕麦的生长速度呈现出“低—高—低”的“S”形动态模式,在抽穗—扬花期生长速度最大,盛花期株高达分别到108.58、103.43、100.37、113.42 cm,干草产量分别为549.17、514.74、519.63、531.53 g DM/m²。4个燕麦品种均适合在黄河滩种植和生长,表现出生长快、产量高的特点,其中加燕品种各项性能表现更好。

Production Performance and Agronomic Traits of Four Oat Varieties in the Yellow River Beach Area

In this study, a comparative trial of four oat varieties was designed to characterize their dynamic changes in production performance and agronomic traits under the soil and climatic conditions of the Yellow River beach area in Henan Province. The stem to leaf ratio, fresh to dry ratio, plant height and hay yield of the oat varieties of ′Wuzhai′, ′Linna′, ′Bayou No.3′ and ′Jiayan′ in different growth period were determined when their seeding rate was 225 kg/hm². The results showed that at the flowering stage,the stem to leaf ratio of the above four oat varieties was 65.34%, 58.18%, 70.05% and 54.72%, respectively, and their fresh to dry ratio was 3.12, 3.17, 3.07 and 3.31, respectively. The growth rate of the oats exhibited a ′S′ shaped dynamic mode of ′low-high-low′. The highest growth rate of the oats was observed at the heading-flowering stage. The plant height of the above four oat varieties at the full-blooming stage was 108.58, 103.43, 100.37 and 113.42 cm, respectively, and the hay yield was 549.17, 514.74, 519.63 and 531.53 g DM/m², respectively. In conclusion, the four tested oat varieties characterized by rapid growth and high yield are all suitable for planting and growing the Yellow River beach area. ′Jiayan′ has superior comprehensive performance to the other tested oat varieties.