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文章研究了不同种植密度对杂交种甜高粱通甜1号生长发育、品质及产量的影响。结果表明,不同种植密度下单株分蘖数在生育前期消长明显,株高、茎粗、茎叶比、叶面积、光合色素含量和单株干物质积累在后期均呈显著差异;且品质、生物产量和含糖量受种植密度影响较大,处理间生物产量显著增加(P<0.05)。综合分析,种植密度为11.67万株/hm2,株行距10cm×60cm,可较好地协调群体与个体的生长,使生物产量和营养含量都达到较高水平。
The effects of different planting densities on the growth, quality and yield of hybrid sweet sorghum Tongtian No.1 were studied. The results showed that the tiller number per plant at different planting densities was significantly decreased at the early growth stage, with significant differences in plant height, stem diameter, leaf-to-leaf ratio, leaf area, photosynthetic pigment content and plant dry matter accumulation at the later stage. The yield and sugar content were greatly influenced by the planting density, and the biological yield was significantly increased between treatments (P <0.05). According to the comprehensive analysis, the planting density was 116,700 plants / hm2, the spacing of 10 cm × 60 cm was good, which could well coordinate the growth of both groups and individuals, and both the biological yield and the nutrient content reached a higher level.