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为给糯小麦高产栽培提供参考,以扬糯麦1号为材料,设置了135×104、180×104、225×104、270×104和315×104株·hm-2五个密度水平,分析了种植密度对糯小麦籽粒产量与群体质量的影响。结果表明,扬糯麦1号孕穗期及开花期叶面积系数、开花期及成熟期干物质积累量与密度呈显著线性正相关,分蘖成穗率与密度呈极显著线性负相关,花后干物质积累量和粒叶比与密度呈显著二次曲线关系。在215×104~238×104株·hm-2种植密度下,产量达8 000kg·hm-2以上,此密度区间可作为糯小麦正常播种条件下的适宜密度范围。
In order to provide a reference for the high-yielding cultivation of waxy wheat, the five density levels of 135 × 104, 180 × 104, 225 × 104, 270 × 104 and 315 × 104 plants · hm-2 were set up with Yangnanyou 1 as the material, Effects of Planting Density on Grain Yield and Population Quality of Waxy Wheat. The results showed that there was a significant linear positive correlation between LAI, leaf area coefficient, flowering and maturity dry matter accumulation and density of Yangwanyou 1 at booting and flowering stages. Material accumulation and grain-leaf ratio and density showed a significant quadratic curve. Under the planting density of 215 × 104 ~ 238 × 104 plants · hm-2, the yield reached more than 8 000 kg · hm-2, which could be used as the appropriate density range under normal sowing conditions of waxy wheat.