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合理的种植密度有利于提高高粱的生产潜力。本试验为了阐明矮秆早熟高粱品种‘吉杂141’在佳木斯地区的合理播种密度,在大田试验条件下,设置了15、20、25、30、35万株/hm~2 4种播种密度,研究不同密度对产量及产量性状的影响。结果表明:随着种植密度的增大,叶面积指数增加,叶绿素含量下降,株高差异不显著,穗长、穗粗逐渐下降,生物产量随着密度的增加而增加,千粒重和单穗重对产量影响最大,二者与产量均呈正相关关系。,产量可达到9 183.00 kg/hm2。为该品种在本地的推广和应用提供了理论依据和技术支撑。在佳木斯地区,‘吉杂141’最适播种密度为20万株/hm~2。
Reasonable planting density is conducive to raising the productivity of sorghum. In order to clarify the reasonable sowing density of the early maturing sorghum variety ’Ji’za 141’ in Jiamusi area, 15,20,25,30,35,000 plants / hm ~ 2 sowing densities were set under field test conditions, The effects of different densities on yield and yield traits were studied. The results showed that with the increase of planting density, the leaf area index increased, the content of chlorophyll decreased, the difference of plant height was not significant, the ear length and ear diameter decreased gradually, the biomass increased with the increase of density, The yield had the greatest impact, both of which had a positive correlation with the yield. , The output can reach 9 183.00 kg / hm2. It provided theoretical basis and technical support for the popularization and application of this variety in the local area. In Jiamusi area, the optimal sowing density of Ji’gu 141 was 200,000 plants / hm ~ 2.